1 /* A GNU-like <math.h>.
3 Copyright (C) 2002-2003, 2007-2012 Free Software Foundation, Inc.
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18 #ifndef _@GUARD_PREFIX@_MATH_H
21 @PRAGMA_SYSTEM_HEADER@
25 /* The include_next requires a split double-inclusion guard. */
26 #@INCLUDE_NEXT_AS_FIRST_DIRECTIVE@ @NEXT_AS_FIRST_DIRECTIVE_MATH_H@
28 #ifndef _@GUARD_PREFIX@_MATH_H
29 #define _@GUARD_PREFIX@_MATH_H
32 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
34 /* The definition of _GL_ARG_NONNULL is copied here. */
36 /* The definition of _GL_WARN_ON_USE is copied here. */
39 /* Helper macros to define type-generic function FUNC as overloaded functions,
40 rather than as macros like in C. POSIX declares these with an argument of
41 real-floating (that is, one of float, double, or long double). */
42 # define _GL_MATH_CXX_REAL_FLOATING_DECL_1(func) \
44 _gl_cxx_ ## func ## f (float f) \
49 _gl_cxx_ ## func ## d (double d) \
54 _gl_cxx_ ## func ## l (long double l) \
58 # define _GL_MATH_CXX_REAL_FLOATING_DECL_2(func) \
62 return _gl_cxx_ ## func ## f (f); \
67 return _gl_cxx_ ## func ## d (d); \
70 func (long double l) \
72 return _gl_cxx_ ## func ## l (l); \
76 /* Helper macros to define a portability warning for the
77 classification macro FUNC called with VALUE. POSIX declares the
78 classification macros with an argument of real-floating (that is,
79 one of float, double, or long double). */
80 #define _GL_WARN_REAL_FLOATING_DECL(func) \
82 rpl_ ## func ## f (float f) \
87 rpl_ ## func ## d (double d) \
92 rpl_ ## func ## l (long double l) \
96 _GL_WARN_ON_USE (rpl_ ## func ## f, #func " is unportable - " \
97 "use gnulib module " #func " for portability"); \
98 _GL_WARN_ON_USE (rpl_ ## func ## d, #func " is unportable - " \
99 "use gnulib module " #func " for portability"); \
100 _GL_WARN_ON_USE (rpl_ ## func ## l, #func " is unportable - " \
101 "use gnulib module " #func " for portability")
102 #define _GL_WARN_REAL_FLOATING_IMPL(func, value) \
103 (sizeof (value) == sizeof (float) ? rpl_ ## func ## f (value) \
104 : sizeof (value) == sizeof (double) ? rpl_ ## func ## d (value) \
105 : rpl_ ## func ## l (value))
109 /* Pull in a function that fixes the 'int' to 'long double' conversion
111 _GL_EXTERN_C void _Qp_itoq (long double *, int);
112 static void (*_gl_math_fix_itold) (long double *, int) = _Qp_itoq;
116 /* POSIX allows platforms that don't support NAN. But all major
117 machines in the past 15 years have supported something close to
118 IEEE NaN, so we define this unconditionally. We also must define
119 it on platforms like Solaris 10, where NAN is present but defined
120 as a function pointer rather than a floating point constant. */
121 #if !defined NAN || @REPLACE_NAN@
122 # if !GNULIB_defined_NAN
124 /* The Compaq (ex-DEC) C 6.4 compiler and the Microsoft MSVC 9 compiler
125 choke on the expression 0.0 / 0.0. */
126 # if defined __DECC || defined _MSC_VER
130 static float zero = 0.0f;
133 # define NAN (_NaN())
135 # define NAN (0.0f / 0.0f)
137 # define GNULIB_defined_NAN 1
141 /* Solaris 10 defines HUGE_VAL, but as a function pointer rather
142 than a floating point constant. */
143 #if @REPLACE_HUGE_VAL@
145 # define HUGE_VALF (1.0f / 0.0f)
147 # define HUGE_VAL (1.0 / 0.0)
149 # define HUGE_VALL (1.0L / 0.0L)
152 /* HUGE_VALF is a 'float' Infinity. */
154 # if defined _MSC_VER
155 /* The Microsoft MSVC 9 compiler chokes on the expression 1.0f / 0.0f. */
156 # define HUGE_VALF (1e25f * 1e25f)
158 # define HUGE_VALF (1.0f / 0.0f)
162 /* HUGE_VAL is a 'double' Infinity. */
164 # if defined _MSC_VER
165 /* The Microsoft MSVC 9 compiler chokes on the expression 1.0 / 0.0. */
166 # define HUGE_VAL (1e250 * 1e250)
168 # define HUGE_VAL (1.0 / 0.0)
172 /* HUGE_VALL is a 'long double' Infinity. */
174 # if defined _MSC_VER
175 /* The Microsoft MSVC 9 compiler chokes on the expression 1.0L / 0.0L. */
176 # define HUGE_VALL (1e250L * 1e250L)
178 # define HUGE_VALL (1.0L / 0.0L)
183 /* Ensure FP_ILOGB0 and FP_ILOGBNAN are defined. */
184 #if !(defined FP_ILOGB0 && defined FP_ILOGBNAN)
185 # if defined __NetBSD__ || defined __sgi
186 /* NetBSD, IRIX 6.5: match what ilogb() does */
187 # define FP_ILOGB0 (- 2147483647 - 1) /* INT_MIN */
188 # define FP_ILOGBNAN (- 2147483647 - 1) /* INT_MIN */
190 /* AIX 5.1: match what ilogb() does in AIX >= 5.2 */
191 # define FP_ILOGB0 (- 2147483647 - 1) /* INT_MIN */
192 # define FP_ILOGBNAN 2147483647 /* INT_MAX */
194 /* Solaris 9: match what ilogb() does */
195 # define FP_ILOGB0 (- 2147483647) /* - INT_MAX */
196 # define FP_ILOGBNAN 2147483647 /* INT_MAX */
198 /* Gnulib defined values. */
199 # define FP_ILOGB0 (- 2147483647) /* - INT_MAX */
200 # define FP_ILOGBNAN (- 2147483647 - 1) /* INT_MIN */
208 _GL_FUNCDECL_SYS (acosf, float, (float x));
210 _GL_CXXALIAS_SYS (acosf, float, (float x));
211 _GL_CXXALIASWARN (acosf);
212 #elif defined GNULIB_POSIXCHECK
214 # if HAVE_RAW_DECL_ACOSF
215 _GL_WARN_ON_USE (acosf, "acosf is unportable - "
216 "use gnulib module acosf for portability");
221 # if !@HAVE_ACOSL@ || !@HAVE_DECL_ACOSL@
223 _GL_FUNCDECL_SYS (acosl, long double, (long double x));
225 _GL_CXXALIAS_SYS (acosl, long double, (long double x));
226 _GL_CXXALIASWARN (acosl);
227 #elif defined GNULIB_POSIXCHECK
229 # if HAVE_RAW_DECL_ACOSL
230 _GL_WARN_ON_USE (acosl, "acosl is unportable - "
231 "use gnulib module acosl for portability");
239 _GL_FUNCDECL_SYS (asinf, float, (float x));
241 _GL_CXXALIAS_SYS (asinf, float, (float x));
242 _GL_CXXALIASWARN (asinf);
243 #elif defined GNULIB_POSIXCHECK
245 # if HAVE_RAW_DECL_ASINF
246 _GL_WARN_ON_USE (asinf, "asinf is unportable - "
247 "use gnulib module asinf for portability");
252 # if !@HAVE_ASINL@ || !@HAVE_DECL_ASINL@
254 _GL_FUNCDECL_SYS (asinl, long double, (long double x));
256 _GL_CXXALIAS_SYS (asinl, long double, (long double x));
257 _GL_CXXALIASWARN (asinl);
258 #elif defined GNULIB_POSIXCHECK
260 # if HAVE_RAW_DECL_ASINL
261 _GL_WARN_ON_USE (asinl, "asinl is unportable - "
262 "use gnulib module asinl for portability");
270 _GL_FUNCDECL_SYS (atanf, float, (float x));
272 _GL_CXXALIAS_SYS (atanf, float, (float x));
273 _GL_CXXALIASWARN (atanf);
274 #elif defined GNULIB_POSIXCHECK
276 # if HAVE_RAW_DECL_ATANF
277 _GL_WARN_ON_USE (atanf, "atanf is unportable - "
278 "use gnulib module atanf for portability");
283 # if !@HAVE_ATANL@ || !@HAVE_DECL_ATANL@
285 _GL_FUNCDECL_SYS (atanl, long double, (long double x));
287 _GL_CXXALIAS_SYS (atanl, long double, (long double x));
288 _GL_CXXALIASWARN (atanl);
289 #elif defined GNULIB_POSIXCHECK
291 # if HAVE_RAW_DECL_ATANL
292 _GL_WARN_ON_USE (atanl, "atanl is unportable - "
293 "use gnulib module atanl for portability");
301 _GL_FUNCDECL_SYS (atan2f, float, (float y, float x));
303 _GL_CXXALIAS_SYS (atan2f, float, (float y, float x));
304 _GL_CXXALIASWARN (atan2f);
305 #elif defined GNULIB_POSIXCHECK
307 # if HAVE_RAW_DECL_ATAN2F
308 _GL_WARN_ON_USE (atan2f, "atan2f is unportable - "
309 "use gnulib module atan2f for portability");
316 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
318 # define cbrtf rpl_cbrtf
320 _GL_FUNCDECL_RPL (cbrtf, float, (float x));
321 _GL_CXXALIAS_RPL (cbrtf, float, (float x));
323 # if !@HAVE_DECL_CBRTF@
324 _GL_FUNCDECL_SYS (cbrtf, float, (float x));
326 _GL_CXXALIAS_SYS (cbrtf, float, (float x));
328 _GL_CXXALIASWARN (cbrtf);
329 #elif defined GNULIB_POSIXCHECK
331 # if HAVE_RAW_DECL_CBRTF
332 _GL_WARN_ON_USE (cbrtf, "cbrtf is unportable - "
333 "use gnulib module cbrtf for portability");
339 _GL_FUNCDECL_SYS (cbrt, double, (double x));
341 _GL_CXXALIAS_SYS (cbrt, double, (double x));
342 _GL_CXXALIASWARN (cbrt);
343 #elif defined GNULIB_POSIXCHECK
345 # if HAVE_RAW_DECL_CBRT
346 _GL_WARN_ON_USE (cbrt, "cbrt is unportable - "
347 "use gnulib module cbrt for portability");
353 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
355 # define cbrtl rpl_cbrtl
357 _GL_FUNCDECL_RPL (cbrtl, long double, (long double x));
358 _GL_CXXALIAS_RPL (cbrtl, long double, (long double x));
360 # if !@HAVE_DECL_CBRTL@
361 _GL_FUNCDECL_SYS (cbrtl, long double, (long double x));
363 _GL_CXXALIAS_SYS (cbrtl, long double, (long double x));
365 _GL_CXXALIASWARN (cbrtl);
366 #elif defined GNULIB_POSIXCHECK
368 # if HAVE_RAW_DECL_CBRTL
369 _GL_WARN_ON_USE (cbrtl, "cbrtl is unportable - "
370 "use gnulib module cbrtl for portability");
377 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
379 # define ceilf rpl_ceilf
381 _GL_FUNCDECL_RPL (ceilf, float, (float x));
382 _GL_CXXALIAS_RPL (ceilf, float, (float x));
384 # if !@HAVE_DECL_CEILF@
386 _GL_FUNCDECL_SYS (ceilf, float, (float x));
388 _GL_CXXALIAS_SYS (ceilf, float, (float x));
390 _GL_CXXALIASWARN (ceilf);
391 #elif defined GNULIB_POSIXCHECK
393 # if HAVE_RAW_DECL_CEILF
394 _GL_WARN_ON_USE (ceilf, "ceilf is unportable - "
395 "use gnulib module ceilf for portability");
401 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
402 # define ceil rpl_ceil
404 _GL_FUNCDECL_RPL (ceil, double, (double x));
405 _GL_CXXALIAS_RPL (ceil, double, (double x));
407 _GL_CXXALIAS_SYS (ceil, double, (double x));
409 _GL_CXXALIASWARN (ceil);
414 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
416 # define ceill rpl_ceill
418 _GL_FUNCDECL_RPL (ceill, long double, (long double x));
419 _GL_CXXALIAS_RPL (ceill, long double, (long double x));
421 # if !@HAVE_DECL_CEILL@
423 _GL_FUNCDECL_SYS (ceill, long double, (long double x));
425 _GL_CXXALIAS_SYS (ceill, long double, (long double x));
427 _GL_CXXALIASWARN (ceill);
428 #elif defined GNULIB_POSIXCHECK
430 # if HAVE_RAW_DECL_CEILL
431 _GL_WARN_ON_USE (ceill, "ceill is unportable - "
432 "use gnulib module ceill for portability");
437 #if @GNULIB_COPYSIGNF@
438 # if !@HAVE_DECL_COPYSIGNF@
439 _GL_FUNCDECL_SYS (copysignf, float, (float x, float y));
441 _GL_CXXALIAS_SYS (copysignf, float, (float x, float y));
442 _GL_CXXALIASWARN (copysignf);
443 #elif defined GNULIB_POSIXCHECK
445 # if HAVE_RAW_DECL_COPYSIGNF
446 _GL_WARN_ON_USE (copysignf, "copysignf is unportable - "
447 "use gnulib module copysignf for portability");
451 #if @GNULIB_COPYSIGN@
452 # if !@HAVE_COPYSIGN@
453 _GL_FUNCDECL_SYS (copysign, double, (double x, double y));
455 _GL_CXXALIAS_SYS (copysign, double, (double x, double y));
456 _GL_CXXALIASWARN (copysign);
457 #elif defined GNULIB_POSIXCHECK
459 # if HAVE_RAW_DECL_COPYSIGN
460 _GL_WARN_ON_USE (copysign, "copysign is unportable - "
461 "use gnulib module copysign for portability");
465 #if @GNULIB_COPYSIGNL@
466 # if !@HAVE_COPYSIGNL@
467 _GL_FUNCDECL_SYS (copysignl, long double, (long double x, long double y));
469 _GL_CXXALIAS_SYS (copysignl, long double, (long double x, long double y));
470 _GL_CXXALIASWARN (copysignl);
471 #elif defined GNULIB_POSIXCHECK
473 # if HAVE_RAW_DECL_COPYSIGNL
474 _GL_WARN_ON_USE (copysign, "copysignl is unportable - "
475 "use gnulib module copysignl for portability");
483 _GL_FUNCDECL_SYS (cosf, float, (float x));
485 _GL_CXXALIAS_SYS (cosf, float, (float x));
486 _GL_CXXALIASWARN (cosf);
487 #elif defined GNULIB_POSIXCHECK
489 # if HAVE_RAW_DECL_COSF
490 _GL_WARN_ON_USE (cosf, "cosf is unportable - "
491 "use gnulib module cosf for portability");
496 # if !@HAVE_COSL@ || !@HAVE_DECL_COSL@
498 _GL_FUNCDECL_SYS (cosl, long double, (long double x));
500 _GL_CXXALIAS_SYS (cosl, long double, (long double x));
501 _GL_CXXALIASWARN (cosl);
502 #elif defined GNULIB_POSIXCHECK
504 # if HAVE_RAW_DECL_COSL
505 _GL_WARN_ON_USE (cosl, "cosl is unportable - "
506 "use gnulib module cosl for portability");
514 _GL_FUNCDECL_SYS (coshf, float, (float x));
516 _GL_CXXALIAS_SYS (coshf, float, (float x));
517 _GL_CXXALIASWARN (coshf);
518 #elif defined GNULIB_POSIXCHECK
520 # if HAVE_RAW_DECL_COSHF
521 _GL_WARN_ON_USE (coshf, "coshf is unportable - "
522 "use gnulib module coshf for portability");
530 _GL_FUNCDECL_SYS (expf, float, (float x));
532 _GL_CXXALIAS_SYS (expf, float, (float x));
533 _GL_CXXALIASWARN (expf);
534 #elif defined GNULIB_POSIXCHECK
536 # if HAVE_RAW_DECL_EXPF
537 _GL_WARN_ON_USE (expf, "expf is unportable - "
538 "use gnulib module expf for portability");
543 # if !@HAVE_EXPL@ || !@HAVE_DECL_EXPL@
545 _GL_FUNCDECL_SYS (expl, long double, (long double x));
547 _GL_CXXALIAS_SYS (expl, long double, (long double x));
548 _GL_CXXALIASWARN (expl);
549 #elif defined GNULIB_POSIXCHECK
551 # if HAVE_RAW_DECL_EXPL
552 _GL_WARN_ON_USE (expl, "expl is unportable - "
553 "use gnulib module expl for portability");
559 # if !@HAVE_DECL_EXP2F@
560 _GL_FUNCDECL_SYS (exp2f, float, (float x));
562 _GL_CXXALIAS_SYS (exp2f, float, (float x));
563 _GL_CXXALIASWARN (exp2f);
564 #elif defined GNULIB_POSIXCHECK
566 # if HAVE_RAW_DECL_EXP2F
567 _GL_WARN_ON_USE (exp2f, "exp2f is unportable - "
568 "use gnulib module exp2f for portability");
574 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
576 # define exp2 rpl_exp2
578 _GL_FUNCDECL_RPL (exp2, double, (double x));
579 _GL_CXXALIAS_RPL (exp2, double, (double x));
581 # if !@HAVE_DECL_EXP2@
582 _GL_FUNCDECL_SYS (exp2, double, (double x));
584 _GL_CXXALIAS_SYS (exp2, double, (double x));
586 _GL_CXXALIASWARN (exp2);
587 #elif defined GNULIB_POSIXCHECK
589 # if HAVE_RAW_DECL_EXP2
590 _GL_WARN_ON_USE (exp2, "exp2 is unportable - "
591 "use gnulib module exp2 for portability");
597 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
599 # define exp2l rpl_exp2l
601 _GL_FUNCDECL_RPL (exp2l, long double, (long double x));
602 _GL_CXXALIAS_RPL (exp2l, long double, (long double x));
604 # if !@HAVE_DECL_EXP2L@
606 _GL_FUNCDECL_SYS (exp2l, long double, (long double x));
608 _GL_CXXALIAS_SYS (exp2l, long double, (long double x));
610 _GL_CXXALIASWARN (exp2l);
611 #elif defined GNULIB_POSIXCHECK
613 # if HAVE_RAW_DECL_EXP2L
614 _GL_WARN_ON_USE (exp2l, "exp2l is unportable - "
615 "use gnulib module exp2l for portability");
621 # if @REPLACE_EXPM1F@
622 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
624 # define expm1f rpl_expm1f
626 _GL_FUNCDECL_RPL (expm1f, float, (float x));
627 _GL_CXXALIAS_RPL (expm1f, float, (float x));
630 _GL_FUNCDECL_SYS (expm1f, float, (float x));
632 _GL_CXXALIAS_SYS (expm1f, float, (float x));
634 _GL_CXXALIASWARN (expm1f);
635 #elif defined GNULIB_POSIXCHECK
637 # if HAVE_RAW_DECL_EXPM1F
638 _GL_WARN_ON_USE (expm1f, "expm1f is unportable - "
639 "use gnulib module expm1f for portability");
645 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
647 # define expm1 rpl_expm1
649 _GL_FUNCDECL_RPL (expm1, double, (double x));
650 _GL_CXXALIAS_RPL (expm1, double, (double x));
653 _GL_FUNCDECL_SYS (expm1, double, (double x));
655 _GL_CXXALIAS_SYS (expm1, double, (double x));
657 _GL_CXXALIASWARN (expm1);
658 #elif defined GNULIB_POSIXCHECK
660 # if HAVE_RAW_DECL_EXPM1
661 _GL_WARN_ON_USE (expm1, "expm1 is unportable - "
662 "use gnulib module expm1 for portability");
667 # if !@HAVE_DECL_EXPM1L@
669 _GL_FUNCDECL_SYS (expm1l, long double, (long double x));
671 _GL_CXXALIAS_SYS (expm1l, long double, (long double x));
672 _GL_CXXALIASWARN (expm1l);
673 #elif defined GNULIB_POSIXCHECK
675 # if HAVE_RAW_DECL_EXPM1L
676 _GL_WARN_ON_USE (expm1l, "expm1l is unportable - "
677 "use gnulib module expm1l for portability");
685 _GL_FUNCDECL_SYS (fabsf, float, (float x));
687 _GL_CXXALIAS_SYS (fabsf, float, (float x));
688 _GL_CXXALIASWARN (fabsf);
689 #elif defined GNULIB_POSIXCHECK
691 # if HAVE_RAW_DECL_FABSF
692 _GL_WARN_ON_USE (fabsf, "fabsf is unportable - "
693 "use gnulib module fabsf for portability");
699 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
701 # define fabsl rpl_fabsl
703 _GL_FUNCDECL_RPL (fabsl, long double, (long double x));
704 _GL_CXXALIAS_RPL (fabsl, long double, (long double x));
708 _GL_FUNCDECL_SYS (fabsl, long double, (long double x));
710 _GL_CXXALIAS_SYS (fabsl, long double, (long double x));
712 _GL_CXXALIASWARN (fabsl);
713 #elif defined GNULIB_POSIXCHECK
715 # if HAVE_RAW_DECL_FABSL
716 _GL_WARN_ON_USE (fabsl, "fabsl is unportable - "
717 "use gnulib module fabsl for portability");
723 # if @REPLACE_FLOORF@
724 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
726 # define floorf rpl_floorf
728 _GL_FUNCDECL_RPL (floorf, float, (float x));
729 _GL_CXXALIAS_RPL (floorf, float, (float x));
731 # if !@HAVE_DECL_FLOORF@
733 _GL_FUNCDECL_SYS (floorf, float, (float x));
735 _GL_CXXALIAS_SYS (floorf, float, (float x));
737 _GL_CXXALIASWARN (floorf);
738 #elif defined GNULIB_POSIXCHECK
740 # if HAVE_RAW_DECL_FLOORF
741 _GL_WARN_ON_USE (floorf, "floorf is unportable - "
742 "use gnulib module floorf for portability");
748 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
749 # define floor rpl_floor
751 _GL_FUNCDECL_RPL (floor, double, (double x));
752 _GL_CXXALIAS_RPL (floor, double, (double x));
754 _GL_CXXALIAS_SYS (floor, double, (double x));
756 _GL_CXXALIASWARN (floor);
760 # if @REPLACE_FLOORL@
761 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
763 # define floorl rpl_floorl
765 _GL_FUNCDECL_RPL (floorl, long double, (long double x));
766 _GL_CXXALIAS_RPL (floorl, long double, (long double x));
768 # if !@HAVE_DECL_FLOORL@
770 _GL_FUNCDECL_SYS (floorl, long double, (long double x));
772 _GL_CXXALIAS_SYS (floorl, long double, (long double x));
774 _GL_CXXALIASWARN (floorl);
775 #elif defined GNULIB_POSIXCHECK
777 # if HAVE_RAW_DECL_FLOORL
778 _GL_WARN_ON_USE (floorl, "floorl is unportable - "
779 "use gnulib module floorl for portability");
786 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
788 # define fmaf rpl_fmaf
790 _GL_FUNCDECL_RPL (fmaf, float, (float x, float y, float z));
791 _GL_CXXALIAS_RPL (fmaf, float, (float x, float y, float z));
794 _GL_FUNCDECL_SYS (fmaf, float, (float x, float y, float z));
796 _GL_CXXALIAS_SYS (fmaf, float, (float x, float y, float z));
798 _GL_CXXALIASWARN (fmaf);
799 #elif defined GNULIB_POSIXCHECK
801 # if HAVE_RAW_DECL_FMAF
802 _GL_WARN_ON_USE (fmaf, "fmaf is unportable - "
803 "use gnulib module fmaf for portability");
809 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
813 _GL_FUNCDECL_RPL (fma, double, (double x, double y, double z));
814 _GL_CXXALIAS_RPL (fma, double, (double x, double y, double z));
817 _GL_FUNCDECL_SYS (fma, double, (double x, double y, double z));
819 _GL_CXXALIAS_SYS (fma, double, (double x, double y, double z));
821 _GL_CXXALIASWARN (fma);
822 #elif defined GNULIB_POSIXCHECK
824 # if HAVE_RAW_DECL_FMA
825 _GL_WARN_ON_USE (fma, "fma is unportable - "
826 "use gnulib module fma for portability");
832 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
834 # define fmal rpl_fmal
836 _GL_FUNCDECL_RPL (fmal, long double,
837 (long double x, long double y, long double z));
838 _GL_CXXALIAS_RPL (fmal, long double,
839 (long double x, long double y, long double z));
843 _GL_FUNCDECL_SYS (fmal, long double,
844 (long double x, long double y, long double z));
846 _GL_CXXALIAS_SYS (fmal, long double,
847 (long double x, long double y, long double z));
849 _GL_CXXALIASWARN (fmal);
850 #elif defined GNULIB_POSIXCHECK
852 # if HAVE_RAW_DECL_FMAL
853 _GL_WARN_ON_USE (fmal, "fmal is unportable - "
854 "use gnulib module fmal for portability");
861 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
863 # define fmodf rpl_fmodf
865 _GL_FUNCDECL_RPL (fmodf, float, (float x, float y));
866 _GL_CXXALIAS_RPL (fmodf, float, (float x, float y));
870 _GL_FUNCDECL_SYS (fmodf, float, (float x, float y));
872 _GL_CXXALIAS_SYS (fmodf, float, (float x, float y));
874 _GL_CXXALIASWARN (fmodf);
875 #elif defined GNULIB_POSIXCHECK
877 # if HAVE_RAW_DECL_FMODF
878 _GL_WARN_ON_USE (fmodf, "fmodf is unportable - "
879 "use gnulib module fmodf for portability");
885 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
887 # define fmod rpl_fmod
889 _GL_FUNCDECL_RPL (fmod, double, (double x, double y));
890 _GL_CXXALIAS_RPL (fmod, double, (double x, double y));
892 _GL_CXXALIAS_SYS (fmod, double, (double x, double y));
894 _GL_CXXALIASWARN (fmod);
895 #elif defined GNULIB_POSIXCHECK
897 # if HAVE_RAW_DECL_FMOD
898 _GL_WARN_ON_USE (fmod, "fmod has portability problems - "
899 "use gnulib module fmod for portability");
905 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
907 # define fmodl rpl_fmodl
909 _GL_FUNCDECL_RPL (fmodl, long double, (long double x, long double y));
910 _GL_CXXALIAS_RPL (fmodl, long double, (long double x, long double y));
914 _GL_FUNCDECL_SYS (fmodl, long double, (long double x, long double y));
916 _GL_CXXALIAS_SYS (fmodl, long double, (long double x, long double y));
918 _GL_CXXALIASWARN (fmodl);
919 #elif defined GNULIB_POSIXCHECK
921 # if HAVE_RAW_DECL_FMODL
922 _GL_WARN_ON_USE (fmodl, "fmodl is unportable - "
923 "use gnulib module fmodl for portability");
931 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
932 If x is zero: mantissa = x, exp = 0.
933 If x is infinite or NaN: mantissa = x, exp unspecified.
934 Store exp in *EXPPTR and return mantissa. */
936 # if @REPLACE_FREXPF@
937 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
939 # define frexpf rpl_frexpf
941 _GL_FUNCDECL_RPL (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
942 _GL_CXXALIAS_RPL (frexpf, float, (float x, int *expptr));
946 _GL_FUNCDECL_SYS (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
948 _GL_CXXALIAS_SYS (frexpf, float, (float x, int *expptr));
950 _GL_CXXALIASWARN (frexpf);
951 #elif defined GNULIB_POSIXCHECK
953 # if HAVE_RAW_DECL_FREXPF
954 _GL_WARN_ON_USE (frexpf, "frexpf is unportable - "
955 "use gnulib module frexpf for portability");
962 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
963 If x is zero: mantissa = x, exp = 0.
964 If x is infinite or NaN: mantissa = x, exp unspecified.
965 Store exp in *EXPPTR and return mantissa. */
968 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
969 # define frexp rpl_frexp
971 _GL_FUNCDECL_RPL (frexp, double, (double x, int *expptr) _GL_ARG_NONNULL ((2)));
972 _GL_CXXALIAS_RPL (frexp, double, (double x, int *expptr));
974 _GL_CXXALIAS_SYS (frexp, double, (double x, int *expptr));
976 _GL_CXXALIASWARN (frexp);
977 #elif defined GNULIB_POSIXCHECK
979 /* Assume frexp is always declared. */
980 _GL_WARN_ON_USE (frexp, "frexp is unportable - "
981 "use gnulib module frexp for portability");
987 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
988 If x is zero: mantissa = x, exp = 0.
989 If x is infinite or NaN: mantissa = x, exp unspecified.
990 Store exp in *EXPPTR and return mantissa. */
991 #if @GNULIB_FREXPL@ && @REPLACE_FREXPL@
992 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
994 # define frexpl rpl_frexpl
996 _GL_FUNCDECL_RPL (frexpl, long double,
997 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
998 _GL_CXXALIAS_RPL (frexpl, long double, (long double x, int *expptr));
1000 # if !@HAVE_DECL_FREXPL@
1001 _GL_FUNCDECL_SYS (frexpl, long double,
1002 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
1004 # if @GNULIB_FREXPL@
1005 _GL_CXXALIAS_SYS (frexpl, long double, (long double x, int *expptr));
1008 #if @GNULIB_FREXPL@ && !(@REPLACE_FREXPL@ && !@HAVE_DECL_FREXPL@)
1009 _GL_CXXALIASWARN (frexpl);
1011 #if !@GNULIB_FREXPL@ && defined GNULIB_POSIXCHECK
1013 # if HAVE_RAW_DECL_FREXPL
1014 _GL_WARN_ON_USE (frexpl, "frexpl is unportable - "
1015 "use gnulib module frexpl for portability");
1020 /* Return sqrt(x^2+y^2). */
1022 # if @REPLACE_HYPOTF@
1023 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1025 # define hypotf rpl_hypotf
1027 _GL_FUNCDECL_RPL (hypotf, float, (float x, float y));
1028 _GL_CXXALIAS_RPL (hypotf, float, (float x, float y));
1031 _GL_FUNCDECL_SYS (hypotf, float, (float x, float y));
1033 _GL_CXXALIAS_SYS (hypotf, float, (float x, float y));
1035 _GL_CXXALIASWARN (hypotf);
1036 #elif defined GNULIB_POSIXCHECK
1038 # if HAVE_RAW_DECL_HYPOTF
1039 _GL_WARN_ON_USE (hypotf, "hypotf is unportable - "
1040 "use gnulib module hypotf for portability");
1044 /* Return sqrt(x^2+y^2). */
1046 # if @REPLACE_HYPOT@
1047 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1049 # define hypot rpl_hypot
1051 _GL_FUNCDECL_RPL (hypot, double, (double x, double y));
1052 _GL_CXXALIAS_RPL (hypot, double, (double x, double y));
1054 _GL_CXXALIAS_SYS (hypot, double, (double x, double y));
1056 _GL_CXXALIASWARN (hypot);
1057 #elif defined GNULIB_POSIXCHECK
1059 # if HAVE_RAW_DECL_HYPOT
1060 _GL_WARN_ON_USE (hypotf, "hypot has portability problems - "
1061 "use gnulib module hypot for portability");
1065 /* Return sqrt(x^2+y^2). */
1067 # if @REPLACE_HYPOTL@
1068 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1070 # define hypotl rpl_hypotl
1072 _GL_FUNCDECL_RPL (hypotl, long double, (long double x, long double y));
1073 _GL_CXXALIAS_RPL (hypotl, long double, (long double x, long double y));
1076 _GL_FUNCDECL_SYS (hypotl, long double, (long double x, long double y));
1078 _GL_CXXALIAS_SYS (hypotl, long double, (long double x, long double y));
1080 _GL_CXXALIASWARN (hypotl);
1081 #elif defined GNULIB_POSIXCHECK
1083 # if HAVE_RAW_DECL_HYPOTL
1084 _GL_WARN_ON_USE (hypotl, "hypotl is unportable - "
1085 "use gnulib module hypotl for portability");
1091 # if @REPLACE_ILOGB@
1092 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1094 # define ilogb rpl_ilogb
1096 _GL_FUNCDECL_RPL (ilogb, int, (double x));
1097 _GL_CXXALIAS_RPL (ilogb, int, (double x));
1100 _GL_FUNCDECL_SYS (ilogb, int, (double x));
1102 _GL_CXXALIAS_SYS (ilogb, int, (double x));
1104 _GL_CXXALIASWARN (ilogb);
1105 #elif defined GNULIB_POSIXCHECK
1107 # if HAVE_RAW_DECL_ILOGB
1108 _GL_WARN_ON_USE (ilogb, "ilogb is unportable - "
1109 "use gnulib module ilogb for portability");
1114 /* Return x * 2^exp. */
1118 _GL_FUNCDECL_SYS (ldexpf, float, (float x, int exp));
1120 _GL_CXXALIAS_SYS (ldexpf, float, (float x, int exp));
1121 _GL_CXXALIASWARN (ldexpf);
1122 #elif defined GNULIB_POSIXCHECK
1124 # if HAVE_RAW_DECL_LDEXPF
1125 _GL_WARN_ON_USE (ldexpf, "ldexpf is unportable - "
1126 "use gnulib module ldexpf for portability");
1130 /* Return x * 2^exp. */
1131 #if @GNULIB_LDEXPL@ && @REPLACE_LDEXPL@
1132 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1134 # define ldexpl rpl_ldexpl
1136 _GL_FUNCDECL_RPL (ldexpl, long double, (long double x, int exp));
1137 _GL_CXXALIAS_RPL (ldexpl, long double, (long double x, int exp));
1139 # if !@HAVE_DECL_LDEXPL@
1140 _GL_FUNCDECL_SYS (ldexpl, long double, (long double x, int exp));
1142 # if @GNULIB_LDEXPL@
1143 _GL_CXXALIAS_SYS (ldexpl, long double, (long double x, int exp));
1147 _GL_CXXALIASWARN (ldexpl);
1149 #if !@GNULIB_LDEXPL@ && defined GNULIB_POSIXCHECK
1151 # if HAVE_RAW_DECL_LDEXPL
1152 _GL_WARN_ON_USE (ldexpl, "ldexpl is unportable - "
1153 "use gnulib module ldexpl for portability");
1160 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1162 # define logf rpl_logf
1164 _GL_FUNCDECL_RPL (logf, float, (float x));
1165 _GL_CXXALIAS_RPL (logf, float, (float x));
1169 _GL_FUNCDECL_SYS (logf, float, (float x));
1171 _GL_CXXALIAS_SYS (logf, float, (float x));
1173 _GL_CXXALIASWARN (logf);
1174 #elif defined GNULIB_POSIXCHECK
1176 # if HAVE_RAW_DECL_LOGF
1177 _GL_WARN_ON_USE (logf, "logf is unportable - "
1178 "use gnulib module logf for portability");
1184 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1186 # define log rpl_log
1188 _GL_FUNCDECL_RPL (log, double, (double x));
1189 _GL_CXXALIAS_RPL (log, double, (double x));
1191 _GL_CXXALIAS_SYS (log, double, (double x));
1193 _GL_CXXALIASWARN (log);
1194 #elif defined GNULIB_POSIXCHECK
1196 # if HAVE_RAW_DECL_LOG
1197 _GL_WARN_ON_USE (log, "log has portability problems - "
1198 "use gnulib module log for portability");
1204 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1206 # define logl rpl_logl
1208 _GL_FUNCDECL_RPL (logl, long double, (long double x));
1209 _GL_CXXALIAS_RPL (logl, long double, (long double x));
1211 # if !@HAVE_LOGL@ || !@HAVE_DECL_LOGL@
1213 _GL_FUNCDECL_SYS (logl, long double, (long double x));
1215 _GL_CXXALIAS_SYS (logl, long double, (long double x));
1217 _GL_CXXALIASWARN (logl);
1218 #elif defined GNULIB_POSIXCHECK
1220 # if HAVE_RAW_DECL_LOGL
1221 _GL_WARN_ON_USE (logl, "logl is unportable - "
1222 "use gnulib module logl for portability");
1228 # if @REPLACE_LOG10F@
1229 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1231 # define log10f rpl_log10f
1233 _GL_FUNCDECL_RPL (log10f, float, (float x));
1234 _GL_CXXALIAS_RPL (log10f, float, (float x));
1238 _GL_FUNCDECL_SYS (log10f, float, (float x));
1240 _GL_CXXALIAS_SYS (log10f, float, (float x));
1242 _GL_CXXALIASWARN (log10f);
1243 #elif defined GNULIB_POSIXCHECK
1245 # if HAVE_RAW_DECL_LOG10F
1246 _GL_WARN_ON_USE (log10f, "log10f is unportable - "
1247 "use gnulib module log10f for portability");
1252 # if @REPLACE_LOG10@
1253 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1255 # define log10 rpl_log10
1257 _GL_FUNCDECL_RPL (log10, double, (double x));
1258 _GL_CXXALIAS_RPL (log10, double, (double x));
1260 _GL_CXXALIAS_SYS (log10, double, (double x));
1262 _GL_CXXALIASWARN (log10);
1263 #elif defined GNULIB_POSIXCHECK
1265 # if HAVE_RAW_DECL_LOG10
1266 _GL_WARN_ON_USE (log10, "log10 has portability problems - "
1267 "use gnulib module log10 for portability");
1272 # if @REPLACE_LOG10L@
1273 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1275 # define log10l rpl_log10l
1277 _GL_FUNCDECL_RPL (log10l, long double, (long double x));
1278 _GL_CXXALIAS_RPL (log10l, long double, (long double x));
1280 # if !@HAVE_LOG10L@ || !@HAVE_DECL_LOG10L@
1282 _GL_FUNCDECL_SYS (log10l, long double, (long double x));
1284 _GL_CXXALIAS_SYS (log10l, long double, (long double x));
1286 _GL_CXXALIASWARN (log10l);
1287 #elif defined GNULIB_POSIXCHECK
1289 # if HAVE_RAW_DECL_LOG10L
1290 _GL_WARN_ON_USE (log10l, "log10l is unportable - "
1291 "use gnulib module log10l for portability");
1297 # if @REPLACE_LOG1PF@
1298 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1300 # define log1pf rpl_log1pf
1302 _GL_FUNCDECL_RPL (log1pf, float, (float x));
1303 _GL_CXXALIAS_RPL (log1pf, float, (float x));
1306 _GL_FUNCDECL_SYS (log1pf, float, (float x));
1308 _GL_CXXALIAS_SYS (log1pf, float, (float x));
1310 _GL_CXXALIASWARN (log1pf);
1311 #elif defined GNULIB_POSIXCHECK
1313 # if HAVE_RAW_DECL_LOG1PF
1314 _GL_WARN_ON_USE (log1pf, "log1pf is unportable - "
1315 "use gnulib module log1pf for portability");
1320 # if @REPLACE_LOG1P@
1321 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1323 # define log1p rpl_log1p
1325 _GL_FUNCDECL_RPL (log1p, double, (double x));
1326 _GL_CXXALIAS_RPL (log1p, double, (double x));
1329 _GL_FUNCDECL_SYS (log1p, double, (double x));
1331 _GL_CXXALIAS_SYS (log1p, double, (double x));
1333 _GL_CXXALIASWARN (log1p);
1334 #elif defined GNULIB_POSIXCHECK
1336 # if HAVE_RAW_DECL_LOG1P
1337 _GL_WARN_ON_USE (log1p, "log1p has portability problems - "
1338 "use gnulib module log1p for portability");
1343 # if @REPLACE_LOG1PL@
1344 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1346 # define log1pl rpl_log1pl
1348 _GL_FUNCDECL_RPL (log1pl, long double, (long double x));
1349 _GL_CXXALIAS_RPL (log1pl, long double, (long double x));
1352 _GL_FUNCDECL_SYS (log1pl, long double, (long double x));
1354 _GL_CXXALIAS_SYS (log1pl, long double, (long double x));
1356 _GL_CXXALIASWARN (log1pl);
1357 #elif defined GNULIB_POSIXCHECK
1359 # if HAVE_RAW_DECL_LOG1PL
1360 _GL_WARN_ON_USE (log1pl, "log1pl has portability problems - "
1361 "use gnulib module log1pl for portability");
1367 # if @REPLACE_LOG2F@
1368 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1370 # define log2f rpl_log2f
1372 _GL_FUNCDECL_RPL (log2f, float, (float x));
1373 _GL_CXXALIAS_RPL (log2f, float, (float x));
1375 # if !@HAVE_DECL_LOG2F@
1377 _GL_FUNCDECL_SYS (log2f, float, (float x));
1379 _GL_CXXALIAS_SYS (log2f, float, (float x));
1381 _GL_CXXALIASWARN (log2f);
1382 #elif defined GNULIB_POSIXCHECK
1384 # if HAVE_RAW_DECL_LOG2F
1385 _GL_WARN_ON_USE (log2f, "log2f is unportable - "
1386 "use gnulib module log2f for portability");
1392 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1394 # define log2 rpl_log2
1396 _GL_FUNCDECL_RPL (log2, double, (double x));
1397 _GL_CXXALIAS_RPL (log2, double, (double x));
1399 # if !@HAVE_DECL_LOG2@
1401 _GL_FUNCDECL_SYS (log2, double, (double x));
1403 _GL_CXXALIAS_SYS (log2, double, (double x));
1405 _GL_CXXALIASWARN (log2);
1406 #elif defined GNULIB_POSIXCHECK
1408 # if HAVE_RAW_DECL_LOG2
1409 _GL_WARN_ON_USE (log2, "log2 is unportable - "
1410 "use gnulib module log2 for portability");
1415 # if @REPLACE_LOG2L@
1416 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1418 # define log2l rpl_log2l
1420 _GL_FUNCDECL_RPL (log2l, long double, (long double x));
1421 _GL_CXXALIAS_RPL (log2l, long double, (long double x));
1423 # if !@HAVE_DECL_LOG2L@
1424 _GL_FUNCDECL_SYS (log2l, long double, (long double x));
1426 _GL_CXXALIAS_SYS (log2l, long double, (long double x));
1428 _GL_CXXALIASWARN (log2l);
1429 #elif defined GNULIB_POSIXCHECK
1431 # if HAVE_RAW_DECL_LOG2L
1432 _GL_WARN_ON_USE (log2l, "log2l is unportable - "
1433 "use gnulib module log2l for portability");
1439 # if @REPLACE_LOGBF@
1440 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1442 # define logbf rpl_logbf
1444 _GL_FUNCDECL_RPL (logbf, float, (float x));
1445 _GL_CXXALIAS_RPL (logbf, float, (float x));
1448 _GL_FUNCDECL_SYS (logbf, float, (float x));
1450 _GL_CXXALIAS_SYS (logbf, float, (float x));
1452 _GL_CXXALIASWARN (logbf);
1453 #elif defined GNULIB_POSIXCHECK
1455 # if HAVE_RAW_DECL_LOGBF
1456 _GL_WARN_ON_USE (logbf, "logbf is unportable - "
1457 "use gnulib module logbf for portability");
1463 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1465 # define logb rpl_logb
1467 _GL_FUNCDECL_RPL (logb, double, (double x));
1468 _GL_CXXALIAS_RPL (logb, double, (double x));
1470 # if !@HAVE_DECL_LOGB@
1471 _GL_FUNCDECL_SYS (logb, double, (double x));
1473 _GL_CXXALIAS_SYS (logb, double, (double x));
1475 _GL_CXXALIASWARN (logb);
1476 #elif defined GNULIB_POSIXCHECK
1478 # if HAVE_RAW_DECL_LOGB
1479 _GL_WARN_ON_USE (logb, "logb is unportable - "
1480 "use gnulib module logb for portability");
1485 # if @REPLACE_LOGBL@
1486 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1488 # define logbl rpl_logbl
1490 _GL_FUNCDECL_RPL (logbl, long double, (long double x));
1491 _GL_CXXALIAS_RPL (logbl, long double, (long double x));
1494 _GL_FUNCDECL_SYS (logbl, long double, (long double x));
1496 _GL_CXXALIAS_SYS (logbl, long double, (long double x));
1498 _GL_CXXALIASWARN (logbl);
1499 #elif defined GNULIB_POSIXCHECK
1501 # if HAVE_RAW_DECL_LOGBL
1502 _GL_WARN_ON_USE (logbl, "logbl is unportable - "
1503 "use gnulib module logbl for portability");
1509 # if @REPLACE_MODFF@
1510 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1512 # define modff rpl_modff
1514 _GL_FUNCDECL_RPL (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1515 _GL_CXXALIAS_RPL (modff, float, (float x, float *iptr));
1519 _GL_FUNCDECL_SYS (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1521 _GL_CXXALIAS_SYS (modff, float, (float x, float *iptr));
1523 _GL_CXXALIASWARN (modff);
1524 #elif defined GNULIB_POSIXCHECK
1526 # if HAVE_RAW_DECL_MODFF
1527 _GL_WARN_ON_USE (modff, "modff is unportable - "
1528 "use gnulib module modff for portability");
1534 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1536 # define modf rpl_modf
1538 _GL_FUNCDECL_RPL (modf, double, (double x, double *iptr) _GL_ARG_NONNULL ((2)));
1539 _GL_CXXALIAS_RPL (modf, double, (double x, double *iptr));
1541 _GL_CXXALIAS_SYS (modf, double, (double x, double *iptr));
1543 _GL_CXXALIASWARN (modf);
1544 #elif defined GNULIB_POSIXCHECK
1546 # if HAVE_RAW_DECL_MODF
1547 _GL_WARN_ON_USE (modf, "modf has portability problems - "
1548 "use gnulib module modf for portability");
1553 # if @REPLACE_MODFL@
1554 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1556 # define modfl rpl_modfl
1558 _GL_FUNCDECL_RPL (modfl, long double, (long double x, long double *iptr)
1559 _GL_ARG_NONNULL ((2)));
1560 _GL_CXXALIAS_RPL (modfl, long double, (long double x, long double *iptr));
1564 _GL_FUNCDECL_SYS (modfl, long double, (long double x, long double *iptr)
1565 _GL_ARG_NONNULL ((2)));
1567 _GL_CXXALIAS_SYS (modfl, long double, (long double x, long double *iptr));
1569 _GL_CXXALIASWARN (modfl);
1570 #elif defined GNULIB_POSIXCHECK
1572 # if HAVE_RAW_DECL_MODFL
1573 _GL_WARN_ON_USE (modfl, "modfl is unportable - "
1574 "use gnulib module modfl for portability");
1582 _GL_FUNCDECL_SYS (powf, float, (float x, float y));
1584 _GL_CXXALIAS_SYS (powf, float, (float x, float y));
1585 _GL_CXXALIASWARN (powf);
1586 #elif defined GNULIB_POSIXCHECK
1588 # if HAVE_RAW_DECL_POWF
1589 _GL_WARN_ON_USE (powf, "powf is unportable - "
1590 "use gnulib module powf for portability");
1595 #if @GNULIB_REMAINDERF@
1596 # if @REPLACE_REMAINDERF@
1597 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1599 # define remainderf rpl_remainderf
1601 _GL_FUNCDECL_RPL (remainderf, float, (float x, float y));
1602 _GL_CXXALIAS_RPL (remainderf, float, (float x, float y));
1604 # if !@HAVE_REMAINDERF@
1605 _GL_FUNCDECL_SYS (remainderf, float, (float x, float y));
1607 _GL_CXXALIAS_SYS (remainderf, float, (float x, float y));
1609 _GL_CXXALIASWARN (remainderf);
1610 #elif defined GNULIB_POSIXCHECK
1612 # if HAVE_RAW_DECL_REMAINDERF
1613 _GL_WARN_ON_USE (remainderf, "remainderf is unportable - "
1614 "use gnulib module remainderf for portability");
1618 #if @GNULIB_REMAINDER@
1619 # if @REPLACE_REMAINDER@
1620 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1622 # define remainder rpl_remainder
1624 _GL_FUNCDECL_RPL (remainder, double, (double x, double y));
1625 _GL_CXXALIAS_RPL (remainder, double, (double x, double y));
1627 # if !@HAVE_REMAINDER@ || !@HAVE_DECL_REMAINDER@
1628 _GL_FUNCDECL_SYS (remainder, double, (double x, double y));
1630 _GL_CXXALIAS_SYS (remainder, double, (double x, double y));
1632 _GL_CXXALIASWARN (remainder);
1633 #elif defined GNULIB_POSIXCHECK
1635 # if HAVE_RAW_DECL_REMAINDER
1636 _GL_WARN_ON_USE (remainder, "remainder is unportable - "
1637 "use gnulib module remainder for portability");
1641 #if @GNULIB_REMAINDERL@
1642 # if @REPLACE_REMAINDERL@
1643 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1645 # define remainderl rpl_remainderl
1647 _GL_FUNCDECL_RPL (remainderl, long double, (long double x, long double y));
1648 _GL_CXXALIAS_RPL (remainderl, long double, (long double x, long double y));
1650 # if !@HAVE_DECL_REMAINDERL@
1652 _GL_FUNCDECL_SYS (remainderl, long double, (long double x, long double y));
1654 _GL_CXXALIAS_SYS (remainderl, long double, (long double x, long double y));
1656 _GL_CXXALIASWARN (remainderl);
1657 #elif defined GNULIB_POSIXCHECK
1659 # if HAVE_RAW_DECL_REMAINDERL
1660 _GL_WARN_ON_USE (remainderl, "remainderl is unportable - "
1661 "use gnulib module remainderl for portability");
1667 # if !@HAVE_DECL_RINTF@
1668 _GL_FUNCDECL_SYS (rintf, float, (float x));
1670 _GL_CXXALIAS_SYS (rintf, float, (float x));
1671 _GL_CXXALIASWARN (rintf);
1672 #elif defined GNULIB_POSIXCHECK
1674 # if HAVE_RAW_DECL_RINTF
1675 _GL_WARN_ON_USE (rintf, "rintf is unportable - "
1676 "use gnulib module rintf for portability");
1682 _GL_FUNCDECL_SYS (rint, double, (double x));
1684 _GL_CXXALIAS_SYS (rint, double, (double x));
1685 _GL_CXXALIASWARN (rint);
1686 #elif defined GNULIB_POSIXCHECK
1688 # if HAVE_RAW_DECL_RINT
1689 _GL_WARN_ON_USE (rint, "rint is unportable - "
1690 "use gnulib module rint for portability");
1696 _GL_FUNCDECL_SYS (rintl, long double, (long double x));
1698 _GL_CXXALIAS_SYS (rintl, long double, (long double x));
1699 _GL_CXXALIASWARN (rintl);
1700 #elif defined GNULIB_POSIXCHECK
1702 # if HAVE_RAW_DECL_RINTL
1703 _GL_WARN_ON_USE (rintl, "rintl is unportable - "
1704 "use gnulib module rintl for portability");
1710 # if @REPLACE_ROUNDF@
1711 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1713 # define roundf rpl_roundf
1715 _GL_FUNCDECL_RPL (roundf, float, (float x));
1716 _GL_CXXALIAS_RPL (roundf, float, (float x));
1718 # if !@HAVE_DECL_ROUNDF@
1719 _GL_FUNCDECL_SYS (roundf, float, (float x));
1721 _GL_CXXALIAS_SYS (roundf, float, (float x));
1723 _GL_CXXALIASWARN (roundf);
1724 #elif defined GNULIB_POSIXCHECK
1726 # if HAVE_RAW_DECL_ROUNDF
1727 _GL_WARN_ON_USE (roundf, "roundf is unportable - "
1728 "use gnulib module roundf for portability");
1733 # if @REPLACE_ROUND@
1734 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1736 # define round rpl_round
1738 _GL_FUNCDECL_RPL (round, double, (double x));
1739 _GL_CXXALIAS_RPL (round, double, (double x));
1741 # if !@HAVE_DECL_ROUND@
1742 _GL_FUNCDECL_SYS (round, double, (double x));
1744 _GL_CXXALIAS_SYS (round, double, (double x));
1746 _GL_CXXALIASWARN (round);
1747 #elif defined GNULIB_POSIXCHECK
1749 # if HAVE_RAW_DECL_ROUND
1750 _GL_WARN_ON_USE (round, "round is unportable - "
1751 "use gnulib module round for portability");
1756 # if @REPLACE_ROUNDL@
1757 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1759 # define roundl rpl_roundl
1761 _GL_FUNCDECL_RPL (roundl, long double, (long double x));
1762 _GL_CXXALIAS_RPL (roundl, long double, (long double x));
1764 # if !@HAVE_DECL_ROUNDL@
1766 _GL_FUNCDECL_SYS (roundl, long double, (long double x));
1768 _GL_CXXALIAS_SYS (roundl, long double, (long double x));
1770 _GL_CXXALIASWARN (roundl);
1771 #elif defined GNULIB_POSIXCHECK
1773 # if HAVE_RAW_DECL_ROUNDL
1774 _GL_WARN_ON_USE (roundl, "roundl is unportable - "
1775 "use gnulib module roundl for portability");
1783 _GL_FUNCDECL_SYS (sinf, float, (float x));
1785 _GL_CXXALIAS_SYS (sinf, float, (float x));
1786 _GL_CXXALIASWARN (sinf);
1787 #elif defined GNULIB_POSIXCHECK
1789 # if HAVE_RAW_DECL_SINF
1790 _GL_WARN_ON_USE (sinf, "sinf is unportable - "
1791 "use gnulib module sinf for portability");
1796 # if !@HAVE_SINL@ || !@HAVE_DECL_SINL@
1798 _GL_FUNCDECL_SYS (sinl, long double, (long double x));
1800 _GL_CXXALIAS_SYS (sinl, long double, (long double x));
1801 _GL_CXXALIASWARN (sinl);
1802 #elif defined GNULIB_POSIXCHECK
1804 # if HAVE_RAW_DECL_SINL
1805 _GL_WARN_ON_USE (sinl, "sinl is unportable - "
1806 "use gnulib module sinl for portability");
1814 _GL_FUNCDECL_SYS (sinhf, float, (float x));
1816 _GL_CXXALIAS_SYS (sinhf, float, (float x));
1817 _GL_CXXALIASWARN (sinhf);
1818 #elif defined GNULIB_POSIXCHECK
1820 # if HAVE_RAW_DECL_SINHF
1821 _GL_WARN_ON_USE (sinhf, "sinhf is unportable - "
1822 "use gnulib module sinhf for portability");
1830 _GL_FUNCDECL_SYS (sqrtf, float, (float x));
1832 _GL_CXXALIAS_SYS (sqrtf, float, (float x));
1833 _GL_CXXALIASWARN (sqrtf);
1834 #elif defined GNULIB_POSIXCHECK
1836 # if HAVE_RAW_DECL_SQRTF
1837 _GL_WARN_ON_USE (sqrtf, "sqrtf is unportable - "
1838 "use gnulib module sqrtf for portability");
1843 # if @REPLACE_SQRTL@
1844 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1846 # define sqrtl rpl_sqrtl
1848 _GL_FUNCDECL_RPL (sqrtl, long double, (long double x));
1849 _GL_CXXALIAS_RPL (sqrtl, long double, (long double x));
1851 # if !@HAVE_SQRTL@ || !@HAVE_DECL_SQRTL@
1853 _GL_FUNCDECL_SYS (sqrtl, long double, (long double x));
1855 _GL_CXXALIAS_SYS (sqrtl, long double, (long double x));
1857 _GL_CXXALIASWARN (sqrtl);
1858 #elif defined GNULIB_POSIXCHECK
1860 # if HAVE_RAW_DECL_SQRTL
1861 _GL_WARN_ON_USE (sqrtl, "sqrtl is unportable - "
1862 "use gnulib module sqrtl for portability");
1870 _GL_FUNCDECL_SYS (tanf, float, (float x));
1872 _GL_CXXALIAS_SYS (tanf, float, (float x));
1873 _GL_CXXALIASWARN (tanf);
1874 #elif defined GNULIB_POSIXCHECK
1876 # if HAVE_RAW_DECL_TANF
1877 _GL_WARN_ON_USE (tanf, "tanf is unportable - "
1878 "use gnulib module tanf for portability");
1883 # if !@HAVE_TANL@ || !@HAVE_DECL_TANL@
1885 _GL_FUNCDECL_SYS (tanl, long double, (long double x));
1887 _GL_CXXALIAS_SYS (tanl, long double, (long double x));
1888 _GL_CXXALIASWARN (tanl);
1889 #elif defined GNULIB_POSIXCHECK
1891 # if HAVE_RAW_DECL_TANL
1892 _GL_WARN_ON_USE (tanl, "tanl is unportable - "
1893 "use gnulib module tanl for portability");
1901 _GL_FUNCDECL_SYS (tanhf, float, (float x));
1903 _GL_CXXALIAS_SYS (tanhf, float, (float x));
1904 _GL_CXXALIASWARN (tanhf);
1905 #elif defined GNULIB_POSIXCHECK
1907 # if HAVE_RAW_DECL_TANHF
1908 _GL_WARN_ON_USE (tanhf, "tanhf is unportable - "
1909 "use gnulib module tanhf for portability");
1915 # if @REPLACE_TRUNCF@
1916 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1917 # define truncf rpl_truncf
1919 _GL_FUNCDECL_RPL (truncf, float, (float x));
1920 _GL_CXXALIAS_RPL (truncf, float, (float x));
1922 # if !@HAVE_DECL_TRUNCF@
1923 _GL_FUNCDECL_SYS (truncf, float, (float x));
1925 _GL_CXXALIAS_SYS (truncf, float, (float x));
1927 _GL_CXXALIASWARN (truncf);
1928 #elif defined GNULIB_POSIXCHECK
1930 # if HAVE_RAW_DECL_TRUNCF
1931 _GL_WARN_ON_USE (truncf, "truncf is unportable - "
1932 "use gnulib module truncf for portability");
1937 # if @REPLACE_TRUNC@
1938 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1939 # define trunc rpl_trunc
1941 _GL_FUNCDECL_RPL (trunc, double, (double x));
1942 _GL_CXXALIAS_RPL (trunc, double, (double x));
1944 # if !@HAVE_DECL_TRUNC@
1945 _GL_FUNCDECL_SYS (trunc, double, (double x));
1947 _GL_CXXALIAS_SYS (trunc, double, (double x));
1949 _GL_CXXALIASWARN (trunc);
1950 #elif defined GNULIB_POSIXCHECK
1952 # if HAVE_RAW_DECL_TRUNC
1953 _GL_WARN_ON_USE (trunc, "trunc is unportable - "
1954 "use gnulib module trunc for portability");
1959 # if @REPLACE_TRUNCL@
1960 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1962 # define truncl rpl_truncl
1964 _GL_FUNCDECL_RPL (truncl, long double, (long double x));
1965 _GL_CXXALIAS_RPL (truncl, long double, (long double x));
1967 # if !@HAVE_DECL_TRUNCL@
1968 _GL_FUNCDECL_SYS (truncl, long double, (long double x));
1970 _GL_CXXALIAS_SYS (truncl, long double, (long double x));
1972 _GL_CXXALIASWARN (truncl);
1973 #elif defined GNULIB_POSIXCHECK
1975 # if HAVE_RAW_DECL_TRUNCL
1976 _GL_WARN_ON_USE (truncl, "truncl is unportable - "
1977 "use gnulib module truncl for portability");
1982 /* Definitions of function-like macros come here, after the function
1986 #if @GNULIB_ISFINITE@
1987 # if @REPLACE_ISFINITE@
1988 _GL_EXTERN_C int gl_isfinitef (float x);
1989 _GL_EXTERN_C int gl_isfinited (double x);
1990 _GL_EXTERN_C int gl_isfinitel (long double x);
1992 # define isfinite(x) \
1993 (sizeof (x) == sizeof (long double) ? gl_isfinitel (x) : \
1994 sizeof (x) == sizeof (double) ? gl_isfinited (x) : \
1999 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isfinite)
2001 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isfinite)
2004 #elif defined GNULIB_POSIXCHECK
2005 # if defined isfinite
2006 _GL_WARN_REAL_FLOATING_DECL (isfinite);
2008 # define isfinite(x) _GL_WARN_REAL_FLOATING_IMPL (isfinite, x)
2014 # if @REPLACE_ISINF@
2015 _GL_EXTERN_C int gl_isinff (float x);
2016 _GL_EXTERN_C int gl_isinfd (double x);
2017 _GL_EXTERN_C int gl_isinfl (long double x);
2020 (sizeof (x) == sizeof (long double) ? gl_isinfl (x) : \
2021 sizeof (x) == sizeof (double) ? gl_isinfd (x) : \
2026 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isinf)
2028 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isinf)
2031 #elif defined GNULIB_POSIXCHECK
2033 _GL_WARN_REAL_FLOATING_DECL (isinf);
2035 # define isinf(x) _GL_WARN_REAL_FLOATING_IMPL (isinf, x)
2041 /* Test for NaN for 'float' numbers. */
2043 /* The original <math.h> included above provides a declaration of isnan macro
2044 or (older) isnanf function. */
2046 /* GCC 4.0 and newer provides three built-ins for isnan. */
2048 # define isnanf(x) __builtin_isnanf ((float)(x))
2049 # elif defined isnan
2051 # define isnanf(x) isnan ((float)(x))
2054 /* Test whether X is a NaN. */
2056 # define isnanf rpl_isnanf
2057 _GL_EXTERN_C int isnanf (float x);
2062 /* Test for NaN for 'double' numbers.
2063 This function is a gnulib extension, unlike isnan() which applied only
2064 to 'double' numbers earlier but now is a type-generic macro. */
2066 /* The original <math.h> included above provides a declaration of isnan
2069 /* GCC 4.0 and newer provides three built-ins for isnan. */
2071 # define isnand(x) __builtin_isnan ((double)(x))
2074 # define isnand(x) isnan ((double)(x))
2077 /* Test whether X is a NaN. */
2079 # define isnand rpl_isnand
2080 _GL_EXTERN_C int isnand (double x);
2085 /* Test for NaN for 'long double' numbers. */
2087 /* The original <math.h> included above provides a declaration of isnan
2088 macro or (older) isnanl function. */
2090 /* GCC 4.0 and newer provides three built-ins for isnan. */
2092 # define isnanl(x) __builtin_isnanl ((long double)(x))
2093 # elif defined isnan
2095 # define isnanl(x) isnan ((long double)(x))
2098 /* Test whether X is a NaN. */
2100 # define isnanl rpl_isnanl
2101 _GL_EXTERN_C int isnanl (long double x) _GL_ATTRIBUTE_CONST;
2105 /* This must come *after* the snippets for GNULIB_ISNANF and GNULIB_ISNANL! */
2107 # if @REPLACE_ISNAN@
2108 /* We can't just use the isnanf macro (e.g.) as exposed by
2109 isnanf.h (e.g.) here, because those may end up being macros
2110 that recursively expand back to isnan. So use the gnulib
2111 replacements for them directly. */
2112 # if @HAVE_ISNANF@ && __GNUC__ >= 4
2113 # define gl_isnan_f(x) __builtin_isnanf ((float)(x))
2115 _GL_EXTERN_C int rpl_isnanf (float x);
2116 # define gl_isnan_f(x) rpl_isnanf (x)
2118 # if @HAVE_ISNAND@ && __GNUC__ >= 4
2119 # define gl_isnan_d(x) __builtin_isnan ((double)(x))
2121 _GL_EXTERN_C int rpl_isnand (double x);
2122 # define gl_isnan_d(x) rpl_isnand (x)
2124 # if @HAVE_ISNANL@ && __GNUC__ >= 4
2125 # define gl_isnan_l(x) __builtin_isnanl ((long double)(x))
2127 _GL_EXTERN_C int rpl_isnanl (long double x) _GL_ATTRIBUTE_CONST;
2128 # define gl_isnan_l(x) rpl_isnanl (x)
2132 (sizeof (x) == sizeof (long double) ? gl_isnan_l (x) : \
2133 sizeof (x) == sizeof (double) ? gl_isnan_d (x) : \
2135 # elif __GNUC__ >= 4
2138 (sizeof (x) == sizeof (long double) ? __builtin_isnanl ((long double)(x)) : \
2139 sizeof (x) == sizeof (double) ? __builtin_isnan ((double)(x)) : \
2140 __builtin_isnanf ((float)(x)))
2144 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isnan)
2146 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isnan)
2149 /* Ensure isnan is a macro. */
2151 # define isnan isnan
2154 #elif defined GNULIB_POSIXCHECK
2156 _GL_WARN_REAL_FLOATING_DECL (isnan);
2158 # define isnan(x) _GL_WARN_REAL_FLOATING_IMPL (isnan, x)
2163 #if @GNULIB_SIGNBIT@
2164 # if @REPLACE_SIGNBIT_USING_GCC@
2166 /* GCC 4.0 and newer provides three built-ins for signbit. */
2167 # define signbit(x) \
2168 (sizeof (x) == sizeof (long double) ? __builtin_signbitl (x) : \
2169 sizeof (x) == sizeof (double) ? __builtin_signbit (x) : \
2170 __builtin_signbitf (x))
2172 # if @REPLACE_SIGNBIT@
2174 _GL_EXTERN_C int gl_signbitf (float arg);
2175 _GL_EXTERN_C int gl_signbitd (double arg);
2176 _GL_EXTERN_C int gl_signbitl (long double arg);
2177 # if __GNUC__ >= 2 && !defined __STRICT_ANSI__
2178 # define _GL_NUM_UINT_WORDS(type) \
2179 ((sizeof (type) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
2180 # if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT && !defined gl_signbitf
2181 # define gl_signbitf_OPTIMIZED_MACRO
2182 # define gl_signbitf(arg) \
2183 ({ union { float _value; \
2184 unsigned int _word[_GL_NUM_UINT_WORDS (float)]; \
2186 _m._value = (arg); \
2187 (_m._word[FLT_SIGNBIT_WORD] >> FLT_SIGNBIT_BIT) & 1; \
2190 # if defined DBL_SIGNBIT_WORD && defined DBL_SIGNBIT_BIT && !defined gl_signbitd
2191 # define gl_signbitd_OPTIMIZED_MACRO
2192 # define gl_signbitd(arg) \
2193 ({ union { double _value; \
2194 unsigned int _word[_GL_NUM_UINT_WORDS (double)]; \
2196 _m._value = (arg); \
2197 (_m._word[DBL_SIGNBIT_WORD] >> DBL_SIGNBIT_BIT) & 1; \
2200 # if defined LDBL_SIGNBIT_WORD && defined LDBL_SIGNBIT_BIT && !defined gl_signbitl
2201 # define gl_signbitl_OPTIMIZED_MACRO
2202 # define gl_signbitl(arg) \
2203 ({ union { long double _value; \
2204 unsigned int _word[_GL_NUM_UINT_WORDS (long double)]; \
2206 _m._value = (arg); \
2207 (_m._word[LDBL_SIGNBIT_WORD] >> LDBL_SIGNBIT_BIT) & 1; \
2211 # define signbit(x) \
2212 (sizeof (x) == sizeof (long double) ? gl_signbitl (x) : \
2213 sizeof (x) == sizeof (double) ? gl_signbitd (x) : \
2218 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (signbit)
2220 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (signbit)
2223 #elif defined GNULIB_POSIXCHECK
2224 # if defined signbit
2225 _GL_WARN_REAL_FLOATING_DECL (signbit);
2227 # define signbit(x) _GL_WARN_REAL_FLOATING_IMPL (signbit, x)
2232 #endif /* _@GUARD_PREFIX@_MATH_H */
2233 #endif /* _@GUARD_PREFIX@_MATH_H */