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)
185 _GL_FUNCDECL_SYS (acosf, float, (float x));
187 _GL_CXXALIAS_SYS (acosf, float, (float x));
188 _GL_CXXALIASWARN (acosf);
189 #elif defined GNULIB_POSIXCHECK
191 # if HAVE_RAW_DECL_ACOSF
192 _GL_WARN_ON_USE (acosf, "acosf is unportable - "
193 "use gnulib module acosf for portability");
198 # if !@HAVE_ACOSL@ || !@HAVE_DECL_ACOSL@
200 _GL_FUNCDECL_SYS (acosl, long double, (long double x));
202 _GL_CXXALIAS_SYS (acosl, long double, (long double x));
203 _GL_CXXALIASWARN (acosl);
204 #elif defined GNULIB_POSIXCHECK
206 # if HAVE_RAW_DECL_ACOSL
207 _GL_WARN_ON_USE (acosl, "acosl is unportable - "
208 "use gnulib module acosl for portability");
216 _GL_FUNCDECL_SYS (asinf, float, (float x));
218 _GL_CXXALIAS_SYS (asinf, float, (float x));
219 _GL_CXXALIASWARN (asinf);
220 #elif defined GNULIB_POSIXCHECK
222 # if HAVE_RAW_DECL_ASINF
223 _GL_WARN_ON_USE (asinf, "asinf is unportable - "
224 "use gnulib module asinf for portability");
229 # if !@HAVE_ASINL@ || !@HAVE_DECL_ASINL@
231 _GL_FUNCDECL_SYS (asinl, long double, (long double x));
233 _GL_CXXALIAS_SYS (asinl, long double, (long double x));
234 _GL_CXXALIASWARN (asinl);
235 #elif defined GNULIB_POSIXCHECK
237 # if HAVE_RAW_DECL_ASINL
238 _GL_WARN_ON_USE (asinl, "asinl is unportable - "
239 "use gnulib module asinl for portability");
247 _GL_FUNCDECL_SYS (atanf, float, (float x));
249 _GL_CXXALIAS_SYS (atanf, float, (float x));
250 _GL_CXXALIASWARN (atanf);
251 #elif defined GNULIB_POSIXCHECK
253 # if HAVE_RAW_DECL_ATANF
254 _GL_WARN_ON_USE (atanf, "atanf is unportable - "
255 "use gnulib module atanf for portability");
260 # if !@HAVE_ATANL@ || !@HAVE_DECL_ATANL@
262 _GL_FUNCDECL_SYS (atanl, long double, (long double x));
264 _GL_CXXALIAS_SYS (atanl, long double, (long double x));
265 _GL_CXXALIASWARN (atanl);
266 #elif defined GNULIB_POSIXCHECK
268 # if HAVE_RAW_DECL_ATANL
269 _GL_WARN_ON_USE (atanl, "atanl is unportable - "
270 "use gnulib module atanl for portability");
278 _GL_FUNCDECL_SYS (atan2f, float, (float y, float x));
280 _GL_CXXALIAS_SYS (atan2f, float, (float y, float x));
281 _GL_CXXALIASWARN (atan2f);
282 #elif defined GNULIB_POSIXCHECK
284 # if HAVE_RAW_DECL_ATAN2F
285 _GL_WARN_ON_USE (atan2f, "atan2f is unportable - "
286 "use gnulib module atan2f for portability");
293 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
295 # define cbrtf rpl_cbrtf
297 _GL_FUNCDECL_RPL (cbrtf, float, (float x));
298 _GL_CXXALIAS_RPL (cbrtf, float, (float x));
300 # if !@HAVE_DECL_CBRTF@
301 _GL_FUNCDECL_SYS (cbrtf, float, (float x));
303 _GL_CXXALIAS_SYS (cbrtf, float, (float x));
305 _GL_CXXALIASWARN (cbrtf);
306 #elif defined GNULIB_POSIXCHECK
308 # if HAVE_RAW_DECL_CBRTF
309 _GL_WARN_ON_USE (cbrtf, "cbrtf is unportable - "
310 "use gnulib module cbrtf for portability");
316 _GL_FUNCDECL_SYS (cbrt, double, (double x));
318 _GL_CXXALIAS_SYS (cbrt, double, (double x));
319 _GL_CXXALIASWARN (cbrt);
320 #elif defined GNULIB_POSIXCHECK
322 # if HAVE_RAW_DECL_CBRT
323 _GL_WARN_ON_USE (cbrt, "cbrt is unportable - "
324 "use gnulib module cbrt for portability");
330 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
332 # define cbrtl rpl_cbrtl
334 _GL_FUNCDECL_RPL (cbrtl, long double, (long double x));
335 _GL_CXXALIAS_RPL (cbrtl, long double, (long double x));
337 # if !@HAVE_DECL_CBRTL@
338 _GL_FUNCDECL_SYS (cbrtl, long double, (long double x));
340 _GL_CXXALIAS_SYS (cbrtl, long double, (long double x));
342 _GL_CXXALIASWARN (cbrtl);
343 #elif defined GNULIB_POSIXCHECK
345 # if HAVE_RAW_DECL_CBRTL
346 _GL_WARN_ON_USE (cbrtl, "cbrtl is unportable - "
347 "use gnulib module cbrtl for portability");
354 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
356 # define ceilf rpl_ceilf
358 _GL_FUNCDECL_RPL (ceilf, float, (float x));
359 _GL_CXXALIAS_RPL (ceilf, float, (float x));
361 # if !@HAVE_DECL_CEILF@
363 _GL_FUNCDECL_SYS (ceilf, float, (float x));
365 _GL_CXXALIAS_SYS (ceilf, float, (float x));
367 _GL_CXXALIASWARN (ceilf);
368 #elif defined GNULIB_POSIXCHECK
370 # if HAVE_RAW_DECL_CEILF
371 _GL_WARN_ON_USE (ceilf, "ceilf is unportable - "
372 "use gnulib module ceilf for portability");
378 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
379 # define ceil rpl_ceil
381 _GL_FUNCDECL_RPL (ceil, double, (double x));
382 _GL_CXXALIAS_RPL (ceil, double, (double x));
384 _GL_CXXALIAS_SYS (ceil, double, (double x));
386 _GL_CXXALIASWARN (ceil);
391 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
393 # define ceill rpl_ceill
395 _GL_FUNCDECL_RPL (ceill, long double, (long double x));
396 _GL_CXXALIAS_RPL (ceill, long double, (long double x));
398 # if !@HAVE_DECL_CEILL@
400 _GL_FUNCDECL_SYS (ceill, long double, (long double x));
402 _GL_CXXALIAS_SYS (ceill, long double, (long double x));
404 _GL_CXXALIASWARN (ceill);
405 #elif defined GNULIB_POSIXCHECK
407 # if HAVE_RAW_DECL_CEILL
408 _GL_WARN_ON_USE (ceill, "ceill is unportable - "
409 "use gnulib module ceill for portability");
414 #if @GNULIB_COPYSIGNF@
415 # if !@HAVE_DECL_COPYSIGNF@
416 _GL_FUNCDECL_SYS (copysignf, float, (float x, float y));
418 _GL_CXXALIAS_SYS (copysignf, float, (float x, float y));
419 _GL_CXXALIASWARN (copysignf);
420 #elif defined GNULIB_POSIXCHECK
422 # if HAVE_RAW_DECL_COPYSIGNF
423 _GL_WARN_ON_USE (copysignf, "copysignf is unportable - "
424 "use gnulib module copysignf for portability");
428 #if @GNULIB_COPYSIGN@
429 # if !@HAVE_COPYSIGN@
430 _GL_FUNCDECL_SYS (copysign, double, (double x, double y));
432 _GL_CXXALIAS_SYS (copysign, double, (double x, double y));
433 _GL_CXXALIASWARN (copysign);
434 #elif defined GNULIB_POSIXCHECK
436 # if HAVE_RAW_DECL_COPYSIGN
437 _GL_WARN_ON_USE (copysign, "copysign is unportable - "
438 "use gnulib module copysign for portability");
442 #if @GNULIB_COPYSIGNL@
443 # if !@HAVE_COPYSIGNL@
444 _GL_FUNCDECL_SYS (copysignl, long double, (long double x, long double y));
446 _GL_CXXALIAS_SYS (copysignl, long double, (long double x, long double y));
447 _GL_CXXALIASWARN (copysignl);
448 #elif defined GNULIB_POSIXCHECK
450 # if HAVE_RAW_DECL_COPYSIGNL
451 _GL_WARN_ON_USE (copysign, "copysignl is unportable - "
452 "use gnulib module copysignl for portability");
460 _GL_FUNCDECL_SYS (cosf, float, (float x));
462 _GL_CXXALIAS_SYS (cosf, float, (float x));
463 _GL_CXXALIASWARN (cosf);
464 #elif defined GNULIB_POSIXCHECK
466 # if HAVE_RAW_DECL_COSF
467 _GL_WARN_ON_USE (cosf, "cosf is unportable - "
468 "use gnulib module cosf for portability");
473 # if !@HAVE_COSL@ || !@HAVE_DECL_COSL@
475 _GL_FUNCDECL_SYS (cosl, long double, (long double x));
477 _GL_CXXALIAS_SYS (cosl, long double, (long double x));
478 _GL_CXXALIASWARN (cosl);
479 #elif defined GNULIB_POSIXCHECK
481 # if HAVE_RAW_DECL_COSL
482 _GL_WARN_ON_USE (cosl, "cosl is unportable - "
483 "use gnulib module cosl for portability");
491 _GL_FUNCDECL_SYS (coshf, float, (float x));
493 _GL_CXXALIAS_SYS (coshf, float, (float x));
494 _GL_CXXALIASWARN (coshf);
495 #elif defined GNULIB_POSIXCHECK
497 # if HAVE_RAW_DECL_COSHF
498 _GL_WARN_ON_USE (coshf, "coshf is unportable - "
499 "use gnulib module coshf for portability");
507 _GL_FUNCDECL_SYS (expf, float, (float x));
509 _GL_CXXALIAS_SYS (expf, float, (float x));
510 _GL_CXXALIASWARN (expf);
511 #elif defined GNULIB_POSIXCHECK
513 # if HAVE_RAW_DECL_EXPF
514 _GL_WARN_ON_USE (expf, "expf is unportable - "
515 "use gnulib module expf for portability");
520 # if !@HAVE_EXPL@ || !@HAVE_DECL_EXPL@
522 _GL_FUNCDECL_SYS (expl, long double, (long double x));
524 _GL_CXXALIAS_SYS (expl, long double, (long double x));
525 _GL_CXXALIASWARN (expl);
526 #elif defined GNULIB_POSIXCHECK
528 # if HAVE_RAW_DECL_EXPL
529 _GL_WARN_ON_USE (expl, "expl is unportable - "
530 "use gnulib module expl for portability");
536 # if !@HAVE_DECL_EXP2F@
537 _GL_FUNCDECL_SYS (exp2f, float, (float x));
539 _GL_CXXALIAS_SYS (exp2f, float, (float x));
540 _GL_CXXALIASWARN (exp2f);
541 #elif defined GNULIB_POSIXCHECK
543 # if HAVE_RAW_DECL_EXP2F
544 _GL_WARN_ON_USE (exp2f, "exp2f is unportable - "
545 "use gnulib module exp2f for portability");
551 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
553 # define exp2 rpl_exp2
555 _GL_FUNCDECL_RPL (exp2, double, (double x));
556 _GL_CXXALIAS_RPL (exp2, double, (double x));
558 # if !@HAVE_DECL_EXP2@
559 _GL_FUNCDECL_SYS (exp2, double, (double x));
561 _GL_CXXALIAS_SYS (exp2, double, (double x));
563 _GL_CXXALIASWARN (exp2);
564 #elif defined GNULIB_POSIXCHECK
566 # if HAVE_RAW_DECL_EXP2
567 _GL_WARN_ON_USE (exp2, "exp2 is unportable - "
568 "use gnulib module exp2 for portability");
574 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
576 # define exp2l rpl_exp2l
578 _GL_FUNCDECL_RPL (exp2l, long double, (long double x));
579 _GL_CXXALIAS_RPL (exp2l, long double, (long double x));
581 # if !@HAVE_DECL_EXP2L@
583 _GL_FUNCDECL_SYS (exp2l, long double, (long double x));
585 _GL_CXXALIAS_SYS (exp2l, long double, (long double x));
587 _GL_CXXALIASWARN (exp2l);
588 #elif defined GNULIB_POSIXCHECK
590 # if HAVE_RAW_DECL_EXP2L
591 _GL_WARN_ON_USE (exp2l, "exp2l is unportable - "
592 "use gnulib module exp2l for portability");
598 # if @REPLACE_EXPM1F@
599 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
601 # define expm1f rpl_expm1f
603 _GL_FUNCDECL_RPL (expm1f, float, (float x));
604 _GL_CXXALIAS_RPL (expm1f, float, (float x));
607 _GL_FUNCDECL_SYS (expm1f, float, (float x));
609 _GL_CXXALIAS_SYS (expm1f, float, (float x));
611 _GL_CXXALIASWARN (expm1f);
612 #elif defined GNULIB_POSIXCHECK
614 # if HAVE_RAW_DECL_EXPM1F
615 _GL_WARN_ON_USE (expm1f, "expm1f is unportable - "
616 "use gnulib module expm1f for portability");
622 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
624 # define expm1 rpl_expm1
626 _GL_FUNCDECL_RPL (expm1, double, (double x));
627 _GL_CXXALIAS_RPL (expm1, double, (double x));
630 _GL_FUNCDECL_SYS (expm1, double, (double x));
632 _GL_CXXALIAS_SYS (expm1, double, (double x));
634 _GL_CXXALIASWARN (expm1);
635 #elif defined GNULIB_POSIXCHECK
637 # if HAVE_RAW_DECL_EXPM1
638 _GL_WARN_ON_USE (expm1, "expm1 is unportable - "
639 "use gnulib module expm1 for portability");
644 # if !@HAVE_DECL_EXPM1L@
646 _GL_FUNCDECL_SYS (expm1l, long double, (long double x));
648 _GL_CXXALIAS_SYS (expm1l, long double, (long double x));
649 _GL_CXXALIASWARN (expm1l);
650 #elif defined GNULIB_POSIXCHECK
652 # if HAVE_RAW_DECL_EXPM1L
653 _GL_WARN_ON_USE (expm1l, "expm1l is unportable - "
654 "use gnulib module expm1l for portability");
662 _GL_FUNCDECL_SYS (fabsf, float, (float x));
664 _GL_CXXALIAS_SYS (fabsf, float, (float x));
665 _GL_CXXALIASWARN (fabsf);
666 #elif defined GNULIB_POSIXCHECK
668 # if HAVE_RAW_DECL_FABSF
669 _GL_WARN_ON_USE (fabsf, "fabsf is unportable - "
670 "use gnulib module fabsf for portability");
676 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
678 # define fabsl rpl_fabsl
680 _GL_FUNCDECL_RPL (fabsl, long double, (long double x));
681 _GL_CXXALIAS_RPL (fabsl, long double, (long double x));
685 _GL_FUNCDECL_SYS (fabsl, long double, (long double x));
687 _GL_CXXALIAS_SYS (fabsl, long double, (long double x));
689 _GL_CXXALIASWARN (fabsl);
690 #elif defined GNULIB_POSIXCHECK
692 # if HAVE_RAW_DECL_FABSL
693 _GL_WARN_ON_USE (fabsl, "fabsl is unportable - "
694 "use gnulib module fabsl for portability");
700 # if @REPLACE_FLOORF@
701 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
703 # define floorf rpl_floorf
705 _GL_FUNCDECL_RPL (floorf, float, (float x));
706 _GL_CXXALIAS_RPL (floorf, float, (float x));
708 # if !@HAVE_DECL_FLOORF@
710 _GL_FUNCDECL_SYS (floorf, float, (float x));
712 _GL_CXXALIAS_SYS (floorf, float, (float x));
714 _GL_CXXALIASWARN (floorf);
715 #elif defined GNULIB_POSIXCHECK
717 # if HAVE_RAW_DECL_FLOORF
718 _GL_WARN_ON_USE (floorf, "floorf is unportable - "
719 "use gnulib module floorf for portability");
725 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
726 # define floor rpl_floor
728 _GL_FUNCDECL_RPL (floor, double, (double x));
729 _GL_CXXALIAS_RPL (floor, double, (double x));
731 _GL_CXXALIAS_SYS (floor, double, (double x));
733 _GL_CXXALIASWARN (floor);
737 # if @REPLACE_FLOORL@
738 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
740 # define floorl rpl_floorl
742 _GL_FUNCDECL_RPL (floorl, long double, (long double x));
743 _GL_CXXALIAS_RPL (floorl, long double, (long double x));
745 # if !@HAVE_DECL_FLOORL@
747 _GL_FUNCDECL_SYS (floorl, long double, (long double x));
749 _GL_CXXALIAS_SYS (floorl, long double, (long double x));
751 _GL_CXXALIASWARN (floorl);
752 #elif defined GNULIB_POSIXCHECK
754 # if HAVE_RAW_DECL_FLOORL
755 _GL_WARN_ON_USE (floorl, "floorl is unportable - "
756 "use gnulib module floorl for portability");
763 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
765 # define fmaf rpl_fmaf
767 _GL_FUNCDECL_RPL (fmaf, float, (float x, float y, float z));
768 _GL_CXXALIAS_RPL (fmaf, float, (float x, float y, float z));
771 _GL_FUNCDECL_SYS (fmaf, float, (float x, float y, float z));
773 _GL_CXXALIAS_SYS (fmaf, float, (float x, float y, float z));
775 _GL_CXXALIASWARN (fmaf);
776 #elif defined GNULIB_POSIXCHECK
778 # if HAVE_RAW_DECL_FMAF
779 _GL_WARN_ON_USE (fmaf, "fmaf is unportable - "
780 "use gnulib module fmaf for portability");
786 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
790 _GL_FUNCDECL_RPL (fma, double, (double x, double y, double z));
791 _GL_CXXALIAS_RPL (fma, double, (double x, double y, double z));
794 _GL_FUNCDECL_SYS (fma, double, (double x, double y, double z));
796 _GL_CXXALIAS_SYS (fma, double, (double x, double y, double z));
798 _GL_CXXALIASWARN (fma);
799 #elif defined GNULIB_POSIXCHECK
801 # if HAVE_RAW_DECL_FMA
802 _GL_WARN_ON_USE (fma, "fma is unportable - "
803 "use gnulib module fma for portability");
809 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
811 # define fmal rpl_fmal
813 _GL_FUNCDECL_RPL (fmal, long double,
814 (long double x, long double y, long double z));
815 _GL_CXXALIAS_RPL (fmal, long double,
816 (long double x, long double y, long double z));
820 _GL_FUNCDECL_SYS (fmal, long double,
821 (long double x, long double y, long double z));
823 _GL_CXXALIAS_SYS (fmal, long double,
824 (long double x, long double y, long double z));
826 _GL_CXXALIASWARN (fmal);
827 #elif defined GNULIB_POSIXCHECK
829 # if HAVE_RAW_DECL_FMAL
830 _GL_WARN_ON_USE (fmal, "fmal is unportable - "
831 "use gnulib module fmal for portability");
838 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
840 # define fmodf rpl_fmodf
842 _GL_FUNCDECL_RPL (fmodf, float, (float x, float y));
843 _GL_CXXALIAS_RPL (fmodf, float, (float x, float y));
847 _GL_FUNCDECL_SYS (fmodf, float, (float x, float y));
849 _GL_CXXALIAS_SYS (fmodf, float, (float x, float y));
851 _GL_CXXALIASWARN (fmodf);
852 #elif defined GNULIB_POSIXCHECK
854 # if HAVE_RAW_DECL_FMODF
855 _GL_WARN_ON_USE (fmodf, "fmodf is unportable - "
856 "use gnulib module fmodf for portability");
862 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
864 # define fmod rpl_fmod
866 _GL_FUNCDECL_RPL (fmod, double, (double x, double y));
867 _GL_CXXALIAS_RPL (fmod, double, (double x, double y));
869 _GL_CXXALIAS_SYS (fmod, double, (double x, double y));
871 _GL_CXXALIASWARN (fmod);
872 #elif defined GNULIB_POSIXCHECK
874 # if HAVE_RAW_DECL_FMOD
875 _GL_WARN_ON_USE (fmod, "fmod has portability problems - "
876 "use gnulib module fmod for portability");
882 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
884 # define fmodl rpl_fmodl
886 _GL_FUNCDECL_RPL (fmodl, long double, (long double x, long double y));
887 _GL_CXXALIAS_RPL (fmodl, long double, (long double x, long double y));
891 _GL_FUNCDECL_SYS (fmodl, long double, (long double x, long double y));
893 _GL_CXXALIAS_SYS (fmodl, long double, (long double x, long double y));
895 _GL_CXXALIASWARN (fmodl);
896 #elif defined GNULIB_POSIXCHECK
898 # if HAVE_RAW_DECL_FMODL
899 _GL_WARN_ON_USE (fmodl, "fmodl is unportable - "
900 "use gnulib module fmodl for portability");
908 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
909 If x is zero: mantissa = x, exp = 0.
910 If x is infinite or NaN: mantissa = x, exp unspecified.
911 Store exp in *EXPPTR and return mantissa. */
913 # if @REPLACE_FREXPF@
914 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
916 # define frexpf rpl_frexpf
918 _GL_FUNCDECL_RPL (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
919 _GL_CXXALIAS_RPL (frexpf, float, (float x, int *expptr));
923 _GL_FUNCDECL_SYS (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
925 _GL_CXXALIAS_SYS (frexpf, float, (float x, int *expptr));
927 _GL_CXXALIASWARN (frexpf);
928 #elif defined GNULIB_POSIXCHECK
930 # if HAVE_RAW_DECL_FREXPF
931 _GL_WARN_ON_USE (frexpf, "frexpf is unportable - "
932 "use gnulib module frexpf for portability");
939 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
940 If x is zero: mantissa = x, exp = 0.
941 If x is infinite or NaN: mantissa = x, exp unspecified.
942 Store exp in *EXPPTR and return mantissa. */
945 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
946 # define frexp rpl_frexp
948 _GL_FUNCDECL_RPL (frexp, double, (double x, int *expptr) _GL_ARG_NONNULL ((2)));
949 _GL_CXXALIAS_RPL (frexp, double, (double x, int *expptr));
951 _GL_CXXALIAS_SYS (frexp, double, (double x, int *expptr));
953 _GL_CXXALIASWARN (frexp);
954 #elif defined GNULIB_POSIXCHECK
956 /* Assume frexp is always declared. */
957 _GL_WARN_ON_USE (frexp, "frexp is unportable - "
958 "use gnulib module frexp for portability");
964 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
965 If x is zero: mantissa = x, exp = 0.
966 If x is infinite or NaN: mantissa = x, exp unspecified.
967 Store exp in *EXPPTR and return mantissa. */
968 #if @GNULIB_FREXPL@ && @REPLACE_FREXPL@
969 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
971 # define frexpl rpl_frexpl
973 _GL_FUNCDECL_RPL (frexpl, long double,
974 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
975 _GL_CXXALIAS_RPL (frexpl, long double, (long double x, int *expptr));
977 # if !@HAVE_DECL_FREXPL@
978 _GL_FUNCDECL_SYS (frexpl, long double,
979 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
982 _GL_CXXALIAS_SYS (frexpl, long double, (long double x, int *expptr));
985 #if @GNULIB_FREXPL@ && !(@REPLACE_FREXPL@ && !@HAVE_DECL_FREXPL@)
986 _GL_CXXALIASWARN (frexpl);
988 #if !@GNULIB_FREXPL@ && defined GNULIB_POSIXCHECK
990 # if HAVE_RAW_DECL_FREXPL
991 _GL_WARN_ON_USE (frexpl, "frexpl is unportable - "
992 "use gnulib module frexpl for portability");
997 /* Return sqrt(x^2+y^2). */
999 # if @REPLACE_HYPOTF@
1000 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1002 # define hypotf rpl_hypotf
1004 _GL_FUNCDECL_RPL (hypotf, float, (float x, float y));
1005 _GL_CXXALIAS_RPL (hypotf, float, (float x, float y));
1008 _GL_FUNCDECL_SYS (hypotf, float, (float x, float y));
1010 _GL_CXXALIAS_SYS (hypotf, float, (float x, float y));
1012 _GL_CXXALIASWARN (hypotf);
1013 #elif defined GNULIB_POSIXCHECK
1015 # if HAVE_RAW_DECL_HYPOTF
1016 _GL_WARN_ON_USE (hypotf, "hypotf is unportable - "
1017 "use gnulib module hypotf for portability");
1021 /* Return sqrt(x^2+y^2). */
1023 # if @REPLACE_HYPOT@
1024 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1026 # define hypot rpl_hypot
1028 _GL_FUNCDECL_RPL (hypot, double, (double x, double y));
1029 _GL_CXXALIAS_RPL (hypot, double, (double x, double y));
1031 _GL_CXXALIAS_SYS (hypot, double, (double x, double y));
1033 _GL_CXXALIASWARN (hypot);
1034 #elif defined GNULIB_POSIXCHECK
1036 # if HAVE_RAW_DECL_HYPOT
1037 _GL_WARN_ON_USE (hypotf, "hypot has portability problems - "
1038 "use gnulib module hypot for portability");
1042 /* Return sqrt(x^2+y^2). */
1044 # if @REPLACE_HYPOTL@
1045 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1047 # define hypotl rpl_hypotl
1049 _GL_FUNCDECL_RPL (hypotl, long double, (long double x, long double y));
1050 _GL_CXXALIAS_RPL (hypotl, long double, (long double x, long double y));
1053 _GL_FUNCDECL_SYS (hypotl, long double, (long double x, long double y));
1055 _GL_CXXALIAS_SYS (hypotl, long double, (long double x, long double y));
1057 _GL_CXXALIASWARN (hypotl);
1058 #elif defined GNULIB_POSIXCHECK
1060 # if HAVE_RAW_DECL_HYPOTL
1061 _GL_WARN_ON_USE (hypotl, "hypotl is unportable - "
1062 "use gnulib module hypotl for portability");
1067 /* Return x * 2^exp. */
1071 _GL_FUNCDECL_SYS (ldexpf, float, (float x, int exp));
1073 _GL_CXXALIAS_SYS (ldexpf, float, (float x, int exp));
1074 _GL_CXXALIASWARN (ldexpf);
1075 #elif defined GNULIB_POSIXCHECK
1077 # if HAVE_RAW_DECL_LDEXPF
1078 _GL_WARN_ON_USE (ldexpf, "ldexpf is unportable - "
1079 "use gnulib module ldexpf for portability");
1083 /* Return x * 2^exp. */
1084 #if @GNULIB_LDEXPL@ && @REPLACE_LDEXPL@
1085 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1087 # define ldexpl rpl_ldexpl
1089 _GL_FUNCDECL_RPL (ldexpl, long double, (long double x, int exp));
1090 _GL_CXXALIAS_RPL (ldexpl, long double, (long double x, int exp));
1092 # if !@HAVE_DECL_LDEXPL@
1093 _GL_FUNCDECL_SYS (ldexpl, long double, (long double x, int exp));
1095 # if @GNULIB_LDEXPL@
1096 _GL_CXXALIAS_SYS (ldexpl, long double, (long double x, int exp));
1100 _GL_CXXALIASWARN (ldexpl);
1102 #if !@GNULIB_LDEXPL@ && defined GNULIB_POSIXCHECK
1104 # if HAVE_RAW_DECL_LDEXPL
1105 _GL_WARN_ON_USE (ldexpl, "ldexpl is unportable - "
1106 "use gnulib module ldexpl for portability");
1112 # if !@HAVE_DECL_LOGB@
1113 _GL_EXTERN_C double logb (double x);
1115 #elif defined GNULIB_POSIXCHECK
1117 # if HAVE_RAW_DECL_LOGB
1118 _GL_WARN_ON_USE (logb, "logb is unportable - "
1119 "use gnulib module logb for portability");
1126 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1128 # define logf rpl_logf
1130 _GL_FUNCDECL_RPL (logf, float, (float x));
1131 _GL_CXXALIAS_RPL (logf, float, (float x));
1135 _GL_FUNCDECL_SYS (logf, float, (float x));
1137 _GL_CXXALIAS_SYS (logf, float, (float x));
1139 _GL_CXXALIASWARN (logf);
1140 #elif defined GNULIB_POSIXCHECK
1142 # if HAVE_RAW_DECL_LOGF
1143 _GL_WARN_ON_USE (logf, "logf is unportable - "
1144 "use gnulib module logf for portability");
1150 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1152 # define log rpl_log
1154 _GL_FUNCDECL_RPL (log, double, (double x));
1155 _GL_CXXALIAS_RPL (log, double, (double x));
1157 _GL_CXXALIAS_SYS (log, double, (double x));
1159 _GL_CXXALIASWARN (log);
1160 #elif defined GNULIB_POSIXCHECK
1162 # if HAVE_RAW_DECL_LOG
1163 _GL_WARN_ON_USE (log, "log has portability problems - "
1164 "use gnulib module log for portability");
1170 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1172 # define logl rpl_logl
1174 _GL_FUNCDECL_RPL (logl, long double, (long double x));
1175 _GL_CXXALIAS_RPL (logl, long double, (long double x));
1177 # if !@HAVE_LOGL@ || !@HAVE_DECL_LOGL@
1179 _GL_FUNCDECL_SYS (logl, long double, (long double x));
1181 _GL_CXXALIAS_SYS (logl, long double, (long double x));
1183 _GL_CXXALIASWARN (logl);
1184 #elif defined GNULIB_POSIXCHECK
1186 # if HAVE_RAW_DECL_LOGL
1187 _GL_WARN_ON_USE (logl, "logl is unportable - "
1188 "use gnulib module logl for portability");
1196 _GL_FUNCDECL_SYS (log10f, float, (float x));
1198 _GL_CXXALIAS_SYS (log10f, float, (float x));
1199 _GL_CXXALIASWARN (log10f);
1200 #elif defined GNULIB_POSIXCHECK
1202 # if HAVE_RAW_DECL_LOG10F
1203 _GL_WARN_ON_USE (log10f, "log10f is unportable - "
1204 "use gnulib module log10f for portability");
1209 # if !@HAVE_LOG10L@ || !@HAVE_DECL_LOG10L@
1211 _GL_FUNCDECL_SYS (log10l, long double, (long double x));
1213 _GL_CXXALIAS_SYS (log10l, long double, (long double x));
1214 _GL_CXXALIASWARN (log10l);
1215 #elif defined GNULIB_POSIXCHECK
1217 # if HAVE_RAW_DECL_LOG10L
1218 _GL_WARN_ON_USE (log10l, "log10l is unportable - "
1219 "use gnulib module log10l for portability");
1225 # if @REPLACE_LOG1PF@
1226 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1228 # define log1pf rpl_log1pf
1230 _GL_FUNCDECL_RPL (log1pf, float, (float x));
1231 _GL_CXXALIAS_RPL (log1pf, float, (float x));
1234 _GL_FUNCDECL_SYS (log1pf, float, (float x));
1236 _GL_CXXALIAS_SYS (log1pf, float, (float x));
1238 _GL_CXXALIASWARN (log1pf);
1239 #elif defined GNULIB_POSIXCHECK
1241 # if HAVE_RAW_DECL_LOG1PF
1242 _GL_WARN_ON_USE (log1pf, "log1pf is unportable - "
1243 "use gnulib module log1pf for portability");
1248 # if @REPLACE_LOG1P@
1249 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1251 # define log1p rpl_log1p
1253 _GL_FUNCDECL_RPL (log1p, double, (double x));
1254 _GL_CXXALIAS_RPL (log1p, double, (double x));
1257 _GL_FUNCDECL_SYS (log1p, double, (double x));
1259 _GL_CXXALIAS_SYS (log1p, double, (double x));
1261 _GL_CXXALIASWARN (log1p);
1262 #elif defined GNULIB_POSIXCHECK
1264 # if HAVE_RAW_DECL_LOG1P
1265 _GL_WARN_ON_USE (log1p, "log1p has portability problems - "
1266 "use gnulib module log1p for portability");
1271 # if @REPLACE_LOG1PL@
1272 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1274 # define log1pl rpl_log1pl
1276 _GL_FUNCDECL_RPL (log1pl, long double, (long double x));
1277 _GL_CXXALIAS_RPL (log1pl, long double, (long double x));
1280 _GL_FUNCDECL_SYS (log1pl, long double, (long double x));
1282 _GL_CXXALIAS_SYS (log1pl, long double, (long double x));
1284 _GL_CXXALIASWARN (log1pl);
1285 #elif defined GNULIB_POSIXCHECK
1287 # if HAVE_RAW_DECL_LOG1PL
1288 _GL_WARN_ON_USE (log1pl, "log1pl has portability problems - "
1289 "use gnulib module log1pl for portability");
1296 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1298 # define log2 rpl_log2
1300 _GL_FUNCDECL_RPL (log2, double, (double x));
1301 _GL_CXXALIAS_RPL (log2, double, (double x));
1303 # if !@HAVE_DECL_LOG2@
1305 _GL_FUNCDECL_SYS (log2, double, (double x));
1307 _GL_CXXALIAS_SYS (log2, double, (double x));
1309 _GL_CXXALIASWARN (log2);
1310 #elif defined GNULIB_POSIXCHECK
1312 # if HAVE_RAW_DECL_LOG2
1313 _GL_WARN_ON_USE (log2, "log2 is unportable - "
1314 "use gnulib module log2 for portability");
1320 # if @REPLACE_MODFF@
1321 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1323 # define modff rpl_modff
1325 _GL_FUNCDECL_RPL (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1326 _GL_CXXALIAS_RPL (modff, float, (float x, float *iptr));
1330 _GL_FUNCDECL_SYS (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1332 _GL_CXXALIAS_SYS (modff, float, (float x, float *iptr));
1334 _GL_CXXALIASWARN (modff);
1335 #elif defined GNULIB_POSIXCHECK
1337 # if HAVE_RAW_DECL_MODFF
1338 _GL_WARN_ON_USE (modff, "modff is unportable - "
1339 "use gnulib module modff for portability");
1345 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1347 # define modf rpl_modf
1349 _GL_FUNCDECL_RPL (modf, double, (double x, double *iptr) _GL_ARG_NONNULL ((2)));
1350 _GL_CXXALIAS_RPL (modf, double, (double x, double *iptr));
1352 _GL_CXXALIAS_SYS (modf, double, (double x, double *iptr));
1354 _GL_CXXALIASWARN (modf);
1355 #elif defined GNULIB_POSIXCHECK
1357 # if HAVE_RAW_DECL_MODF
1358 _GL_WARN_ON_USE (modf, "modf has portability problems - "
1359 "use gnulib module modf for portability");
1364 # if @REPLACE_MODFL@
1365 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1367 # define modfl rpl_modfl
1369 _GL_FUNCDECL_RPL (modfl, long double, (long double x, long double *iptr)
1370 _GL_ARG_NONNULL ((2)));
1371 _GL_CXXALIAS_RPL (modfl, long double, (long double x, long double *iptr));
1375 _GL_FUNCDECL_SYS (modfl, long double, (long double x, long double *iptr)
1376 _GL_ARG_NONNULL ((2)));
1378 _GL_CXXALIAS_SYS (modfl, long double, (long double x, long double *iptr));
1380 _GL_CXXALIASWARN (modfl);
1381 #elif defined GNULIB_POSIXCHECK
1383 # if HAVE_RAW_DECL_MODFL
1384 _GL_WARN_ON_USE (modfl, "modfl is unportable - "
1385 "use gnulib module modfl for portability");
1393 _GL_FUNCDECL_SYS (powf, float, (float x, float y));
1395 _GL_CXXALIAS_SYS (powf, float, (float x, float y));
1396 _GL_CXXALIASWARN (powf);
1397 #elif defined GNULIB_POSIXCHECK
1399 # if HAVE_RAW_DECL_POWF
1400 _GL_WARN_ON_USE (powf, "powf is unportable - "
1401 "use gnulib module powf for portability");
1406 #if @GNULIB_REMAINDERF@
1407 # if @REPLACE_REMAINDERF@
1408 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1410 # define remainderf rpl_remainderf
1412 _GL_FUNCDECL_RPL (remainderf, float, (float x, float y));
1413 _GL_CXXALIAS_RPL (remainderf, float, (float x, float y));
1415 # if !@HAVE_REMAINDERF@
1416 _GL_FUNCDECL_SYS (remainderf, float, (float x, float y));
1418 _GL_CXXALIAS_SYS (remainderf, float, (float x, float y));
1420 _GL_CXXALIASWARN (remainderf);
1421 #elif defined GNULIB_POSIXCHECK
1423 # if HAVE_RAW_DECL_REMAINDERF
1424 _GL_WARN_ON_USE (remainderf, "remainderf is unportable - "
1425 "use gnulib module remainderf for portability");
1429 #if @GNULIB_REMAINDER@
1430 # if @REPLACE_REMAINDER@
1431 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1433 # define remainder rpl_remainder
1435 _GL_FUNCDECL_RPL (remainder, double, (double x, double y));
1436 _GL_CXXALIAS_RPL (remainder, double, (double x, double y));
1438 # if !@HAVE_REMAINDER@ || !@HAVE_DECL_REMAINDER@
1439 _GL_FUNCDECL_SYS (remainder, double, (double x, double y));
1441 _GL_CXXALIAS_SYS (remainder, double, (double x, double y));
1443 _GL_CXXALIASWARN (remainder);
1444 #elif defined GNULIB_POSIXCHECK
1446 # if HAVE_RAW_DECL_REMAINDER
1447 _GL_WARN_ON_USE (remainder, "remainder is unportable - "
1448 "use gnulib module remainder for portability");
1452 #if @GNULIB_REMAINDERL@
1453 # if @REPLACE_REMAINDERL@
1454 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1456 # define remainderl rpl_remainderl
1458 _GL_FUNCDECL_RPL (remainderl, long double, (long double x, long double y));
1459 _GL_CXXALIAS_RPL (remainderl, long double, (long double x, long double y));
1461 # if !@HAVE_DECL_REMAINDERL@
1462 _GL_FUNCDECL_SYS (remainderl, long double, (long double x, long double y));
1464 _GL_CXXALIAS_SYS (remainderl, long double, (long double x, long double y));
1466 _GL_CXXALIASWARN (remainderl);
1467 #elif defined GNULIB_POSIXCHECK
1469 # if HAVE_RAW_DECL_REMAINDERL
1470 _GL_WARN_ON_USE (remainderl, "remainderl is unportable - "
1471 "use gnulib module remainderl for portability");
1477 # if !@HAVE_DECL_RINTF@
1478 _GL_FUNCDECL_SYS (rintf, float, (float x));
1480 _GL_CXXALIAS_SYS (rintf, float, (float x));
1481 _GL_CXXALIASWARN (rintf);
1482 #elif defined GNULIB_POSIXCHECK
1484 # if HAVE_RAW_DECL_RINTF
1485 _GL_WARN_ON_USE (rintf, "rintf is unportable - "
1486 "use gnulib module rintf for portability");
1492 _GL_FUNCDECL_SYS (rint, double, (double x));
1494 _GL_CXXALIAS_SYS (rint, double, (double x));
1495 _GL_CXXALIASWARN (rint);
1496 #elif defined GNULIB_POSIXCHECK
1498 # if HAVE_RAW_DECL_RINT
1499 _GL_WARN_ON_USE (rint, "rint is unportable - "
1500 "use gnulib module rint for portability");
1506 _GL_FUNCDECL_SYS (rintl, long double, (long double x));
1508 _GL_CXXALIAS_SYS (rintl, long double, (long double x));
1509 _GL_CXXALIASWARN (rintl);
1510 #elif defined GNULIB_POSIXCHECK
1512 # if HAVE_RAW_DECL_RINTL
1513 _GL_WARN_ON_USE (rintl, "rintl is unportable - "
1514 "use gnulib module rintl for portability");
1520 # if @REPLACE_ROUNDF@
1521 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1523 # define roundf rpl_roundf
1525 _GL_FUNCDECL_RPL (roundf, float, (float x));
1526 _GL_CXXALIAS_RPL (roundf, float, (float x));
1528 # if !@HAVE_DECL_ROUNDF@
1529 _GL_FUNCDECL_SYS (roundf, float, (float x));
1531 _GL_CXXALIAS_SYS (roundf, float, (float x));
1533 _GL_CXXALIASWARN (roundf);
1534 #elif defined GNULIB_POSIXCHECK
1536 # if HAVE_RAW_DECL_ROUNDF
1537 _GL_WARN_ON_USE (roundf, "roundf is unportable - "
1538 "use gnulib module roundf for portability");
1543 # if @REPLACE_ROUND@
1544 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1546 # define round rpl_round
1548 _GL_FUNCDECL_RPL (round, double, (double x));
1549 _GL_CXXALIAS_RPL (round, double, (double x));
1551 # if !@HAVE_DECL_ROUND@
1552 _GL_FUNCDECL_SYS (round, double, (double x));
1554 _GL_CXXALIAS_SYS (round, double, (double x));
1556 _GL_CXXALIASWARN (round);
1557 #elif defined GNULIB_POSIXCHECK
1559 # if HAVE_RAW_DECL_ROUND
1560 _GL_WARN_ON_USE (round, "round is unportable - "
1561 "use gnulib module round for portability");
1566 # if @REPLACE_ROUNDL@
1567 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1569 # define roundl rpl_roundl
1571 _GL_FUNCDECL_RPL (roundl, long double, (long double x));
1572 _GL_CXXALIAS_RPL (roundl, long double, (long double x));
1574 # if !@HAVE_DECL_ROUNDL@
1576 _GL_FUNCDECL_SYS (roundl, long double, (long double x));
1578 _GL_CXXALIAS_SYS (roundl, long double, (long double x));
1580 _GL_CXXALIASWARN (roundl);
1581 #elif defined GNULIB_POSIXCHECK
1583 # if HAVE_RAW_DECL_ROUNDL
1584 _GL_WARN_ON_USE (roundl, "roundl is unportable - "
1585 "use gnulib module roundl for portability");
1593 _GL_FUNCDECL_SYS (sinf, float, (float x));
1595 _GL_CXXALIAS_SYS (sinf, float, (float x));
1596 _GL_CXXALIASWARN (sinf);
1597 #elif defined GNULIB_POSIXCHECK
1599 # if HAVE_RAW_DECL_SINF
1600 _GL_WARN_ON_USE (sinf, "sinf is unportable - "
1601 "use gnulib module sinf for portability");
1606 # if !@HAVE_SINL@ || !@HAVE_DECL_SINL@
1608 _GL_FUNCDECL_SYS (sinl, long double, (long double x));
1610 _GL_CXXALIAS_SYS (sinl, long double, (long double x));
1611 _GL_CXXALIASWARN (sinl);
1612 #elif defined GNULIB_POSIXCHECK
1614 # if HAVE_RAW_DECL_SINL
1615 _GL_WARN_ON_USE (sinl, "sinl is unportable - "
1616 "use gnulib module sinl for portability");
1624 _GL_FUNCDECL_SYS (sinhf, float, (float x));
1626 _GL_CXXALIAS_SYS (sinhf, float, (float x));
1627 _GL_CXXALIASWARN (sinhf);
1628 #elif defined GNULIB_POSIXCHECK
1630 # if HAVE_RAW_DECL_SINHF
1631 _GL_WARN_ON_USE (sinhf, "sinhf is unportable - "
1632 "use gnulib module sinhf for portability");
1640 _GL_FUNCDECL_SYS (sqrtf, float, (float x));
1642 _GL_CXXALIAS_SYS (sqrtf, float, (float x));
1643 _GL_CXXALIASWARN (sqrtf);
1644 #elif defined GNULIB_POSIXCHECK
1646 # if HAVE_RAW_DECL_SQRTF
1647 _GL_WARN_ON_USE (sqrtf, "sqrtf is unportable - "
1648 "use gnulib module sqrtf for portability");
1653 # if !@HAVE_SQRTL@ || !@HAVE_DECL_SQRTL@
1655 _GL_FUNCDECL_SYS (sqrtl, long double, (long double x));
1657 _GL_CXXALIAS_SYS (sqrtl, long double, (long double x));
1658 _GL_CXXALIASWARN (sqrtl);
1659 #elif defined GNULIB_POSIXCHECK
1661 # if HAVE_RAW_DECL_SQRTL
1662 _GL_WARN_ON_USE (sqrtl, "sqrtl is unportable - "
1663 "use gnulib module sqrtl for portability");
1671 _GL_FUNCDECL_SYS (tanf, float, (float x));
1673 _GL_CXXALIAS_SYS (tanf, float, (float x));
1674 _GL_CXXALIASWARN (tanf);
1675 #elif defined GNULIB_POSIXCHECK
1677 # if HAVE_RAW_DECL_TANF
1678 _GL_WARN_ON_USE (tanf, "tanf is unportable - "
1679 "use gnulib module tanf for portability");
1684 # if !@HAVE_TANL@ || !@HAVE_DECL_TANL@
1686 _GL_FUNCDECL_SYS (tanl, long double, (long double x));
1688 _GL_CXXALIAS_SYS (tanl, long double, (long double x));
1689 _GL_CXXALIASWARN (tanl);
1690 #elif defined GNULIB_POSIXCHECK
1692 # if HAVE_RAW_DECL_TANL
1693 _GL_WARN_ON_USE (tanl, "tanl is unportable - "
1694 "use gnulib module tanl for portability");
1702 _GL_FUNCDECL_SYS (tanhf, float, (float x));
1704 _GL_CXXALIAS_SYS (tanhf, float, (float x));
1705 _GL_CXXALIASWARN (tanhf);
1706 #elif defined GNULIB_POSIXCHECK
1708 # if HAVE_RAW_DECL_TANHF
1709 _GL_WARN_ON_USE (tanhf, "tanhf is unportable - "
1710 "use gnulib module tanhf for portability");
1716 # if @REPLACE_TRUNCF@
1717 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1718 # define truncf rpl_truncf
1720 _GL_FUNCDECL_RPL (truncf, float, (float x));
1721 _GL_CXXALIAS_RPL (truncf, float, (float x));
1723 # if !@HAVE_DECL_TRUNCF@
1724 _GL_FUNCDECL_SYS (truncf, float, (float x));
1726 _GL_CXXALIAS_SYS (truncf, float, (float x));
1728 _GL_CXXALIASWARN (truncf);
1729 #elif defined GNULIB_POSIXCHECK
1731 # if HAVE_RAW_DECL_TRUNCF
1732 _GL_WARN_ON_USE (truncf, "truncf is unportable - "
1733 "use gnulib module truncf for portability");
1738 # if @REPLACE_TRUNC@
1739 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1740 # define trunc rpl_trunc
1742 _GL_FUNCDECL_RPL (trunc, double, (double x));
1743 _GL_CXXALIAS_RPL (trunc, double, (double x));
1745 # if !@HAVE_DECL_TRUNC@
1746 _GL_FUNCDECL_SYS (trunc, double, (double x));
1748 _GL_CXXALIAS_SYS (trunc, double, (double x));
1750 _GL_CXXALIASWARN (trunc);
1751 #elif defined GNULIB_POSIXCHECK
1753 # if HAVE_RAW_DECL_TRUNC
1754 _GL_WARN_ON_USE (trunc, "trunc is unportable - "
1755 "use gnulib module trunc for portability");
1760 # if @REPLACE_TRUNCL@
1761 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1763 # define truncl rpl_truncl
1765 _GL_FUNCDECL_RPL (truncl, long double, (long double x));
1766 _GL_CXXALIAS_RPL (truncl, long double, (long double x));
1768 # if !@HAVE_DECL_TRUNCL@
1769 _GL_FUNCDECL_SYS (truncl, long double, (long double x));
1771 _GL_CXXALIAS_SYS (truncl, long double, (long double x));
1773 _GL_CXXALIASWARN (truncl);
1774 #elif defined GNULIB_POSIXCHECK
1776 # if HAVE_RAW_DECL_TRUNCL
1777 _GL_WARN_ON_USE (truncl, "truncl is unportable - "
1778 "use gnulib module truncl for portability");
1783 /* Definitions of function-like macros come here, after the function
1787 #if @GNULIB_ISFINITE@
1788 # if @REPLACE_ISFINITE@
1789 _GL_EXTERN_C int gl_isfinitef (float x);
1790 _GL_EXTERN_C int gl_isfinited (double x);
1791 _GL_EXTERN_C int gl_isfinitel (long double x);
1793 # define isfinite(x) \
1794 (sizeof (x) == sizeof (long double) ? gl_isfinitel (x) : \
1795 sizeof (x) == sizeof (double) ? gl_isfinited (x) : \
1800 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isfinite)
1802 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isfinite)
1805 #elif defined GNULIB_POSIXCHECK
1806 # if defined isfinite
1807 _GL_WARN_REAL_FLOATING_DECL (isfinite);
1809 # define isfinite(x) _GL_WARN_REAL_FLOATING_IMPL (isfinite, x)
1815 # if @REPLACE_ISINF@
1816 _GL_EXTERN_C int gl_isinff (float x);
1817 _GL_EXTERN_C int gl_isinfd (double x);
1818 _GL_EXTERN_C int gl_isinfl (long double x);
1821 (sizeof (x) == sizeof (long double) ? gl_isinfl (x) : \
1822 sizeof (x) == sizeof (double) ? gl_isinfd (x) : \
1827 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isinf)
1829 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isinf)
1832 #elif defined GNULIB_POSIXCHECK
1834 _GL_WARN_REAL_FLOATING_DECL (isinf);
1836 # define isinf(x) _GL_WARN_REAL_FLOATING_IMPL (isinf, x)
1842 /* Test for NaN for 'float' numbers. */
1844 /* The original <math.h> included above provides a declaration of isnan macro
1845 or (older) isnanf function. */
1847 /* GCC 4.0 and newer provides three built-ins for isnan. */
1849 # define isnanf(x) __builtin_isnanf ((float)(x))
1850 # elif defined isnan
1852 # define isnanf(x) isnan ((float)(x))
1855 /* Test whether X is a NaN. */
1857 # define isnanf rpl_isnanf
1858 _GL_EXTERN_C int isnanf (float x);
1863 /* Test for NaN for 'double' numbers.
1864 This function is a gnulib extension, unlike isnan() which applied only
1865 to 'double' numbers earlier but now is a type-generic macro. */
1867 /* The original <math.h> included above provides a declaration of isnan
1870 /* GCC 4.0 and newer provides three built-ins for isnan. */
1872 # define isnand(x) __builtin_isnan ((double)(x))
1875 # define isnand(x) isnan ((double)(x))
1878 /* Test whether X is a NaN. */
1880 # define isnand rpl_isnand
1881 _GL_EXTERN_C int isnand (double x);
1886 /* Test for NaN for 'long double' numbers. */
1888 /* The original <math.h> included above provides a declaration of isnan
1889 macro or (older) isnanl function. */
1891 /* GCC 4.0 and newer provides three built-ins for isnan. */
1893 # define isnanl(x) __builtin_isnanl ((long double)(x))
1894 # elif defined isnan
1896 # define isnanl(x) isnan ((long double)(x))
1899 /* Test whether X is a NaN. */
1901 # define isnanl rpl_isnanl
1902 _GL_EXTERN_C int isnanl (long double x) _GL_ATTRIBUTE_CONST;
1906 /* This must come *after* the snippets for GNULIB_ISNANF and GNULIB_ISNANL! */
1908 # if @REPLACE_ISNAN@
1909 /* We can't just use the isnanf macro (e.g.) as exposed by
1910 isnanf.h (e.g.) here, because those may end up being macros
1911 that recursively expand back to isnan. So use the gnulib
1912 replacements for them directly. */
1913 # if @HAVE_ISNANF@ && __GNUC__ >= 4
1914 # define gl_isnan_f(x) __builtin_isnanf ((float)(x))
1916 _GL_EXTERN_C int rpl_isnanf (float x);
1917 # define gl_isnan_f(x) rpl_isnanf (x)
1919 # if @HAVE_ISNAND@ && __GNUC__ >= 4
1920 # define gl_isnan_d(x) __builtin_isnan ((double)(x))
1922 _GL_EXTERN_C int rpl_isnand (double x);
1923 # define gl_isnan_d(x) rpl_isnand (x)
1925 # if @HAVE_ISNANL@ && __GNUC__ >= 4
1926 # define gl_isnan_l(x) __builtin_isnanl ((long double)(x))
1928 _GL_EXTERN_C int rpl_isnanl (long double x) _GL_ATTRIBUTE_CONST;
1929 # define gl_isnan_l(x) rpl_isnanl (x)
1933 (sizeof (x) == sizeof (long double) ? gl_isnan_l (x) : \
1934 sizeof (x) == sizeof (double) ? gl_isnan_d (x) : \
1936 # elif __GNUC__ >= 4
1939 (sizeof (x) == sizeof (long double) ? __builtin_isnanl ((long double)(x)) : \
1940 sizeof (x) == sizeof (double) ? __builtin_isnan ((double)(x)) : \
1941 __builtin_isnanf ((float)(x)))
1945 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isnan)
1947 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isnan)
1950 /* Ensure isnan is a macro. */
1952 # define isnan isnan
1955 #elif defined GNULIB_POSIXCHECK
1957 _GL_WARN_REAL_FLOATING_DECL (isnan);
1959 # define isnan(x) _GL_WARN_REAL_FLOATING_IMPL (isnan, x)
1964 #if @GNULIB_SIGNBIT@
1965 # if @REPLACE_SIGNBIT_USING_GCC@
1967 /* GCC 4.0 and newer provides three built-ins for signbit. */
1968 # define signbit(x) \
1969 (sizeof (x) == sizeof (long double) ? __builtin_signbitl (x) : \
1970 sizeof (x) == sizeof (double) ? __builtin_signbit (x) : \
1971 __builtin_signbitf (x))
1973 # if @REPLACE_SIGNBIT@
1975 _GL_EXTERN_C int gl_signbitf (float arg);
1976 _GL_EXTERN_C int gl_signbitd (double arg);
1977 _GL_EXTERN_C int gl_signbitl (long double arg);
1978 # if __GNUC__ >= 2 && !defined __STRICT_ANSI__
1979 # define _GL_NUM_UINT_WORDS(type) \
1980 ((sizeof (type) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
1981 # if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT && !defined gl_signbitf
1982 # define gl_signbitf_OPTIMIZED_MACRO
1983 # define gl_signbitf(arg) \
1984 ({ union { float _value; \
1985 unsigned int _word[_GL_NUM_UINT_WORDS (float)]; \
1987 _m._value = (arg); \
1988 (_m._word[FLT_SIGNBIT_WORD] >> FLT_SIGNBIT_BIT) & 1; \
1991 # if defined DBL_SIGNBIT_WORD && defined DBL_SIGNBIT_BIT && !defined gl_signbitd
1992 # define gl_signbitd_OPTIMIZED_MACRO
1993 # define gl_signbitd(arg) \
1994 ({ union { double _value; \
1995 unsigned int _word[_GL_NUM_UINT_WORDS (double)]; \
1997 _m._value = (arg); \
1998 (_m._word[DBL_SIGNBIT_WORD] >> DBL_SIGNBIT_BIT) & 1; \
2001 # if defined LDBL_SIGNBIT_WORD && defined LDBL_SIGNBIT_BIT && !defined gl_signbitl
2002 # define gl_signbitl_OPTIMIZED_MACRO
2003 # define gl_signbitl(arg) \
2004 ({ union { long double _value; \
2005 unsigned int _word[_GL_NUM_UINT_WORDS (long double)]; \
2007 _m._value = (arg); \
2008 (_m._word[LDBL_SIGNBIT_WORD] >> LDBL_SIGNBIT_BIT) & 1; \
2012 # define signbit(x) \
2013 (sizeof (x) == sizeof (long double) ? gl_signbitl (x) : \
2014 sizeof (x) == sizeof (double) ? gl_signbitd (x) : \
2019 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (signbit)
2021 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (signbit)
2024 #elif defined GNULIB_POSIXCHECK
2025 # if defined signbit
2026 _GL_WARN_REAL_FLOATING_DECL (signbit);
2028 # define signbit(x) _GL_WARN_REAL_FLOATING_IMPL (signbit, x)
2033 #endif /* _@GUARD_PREFIX@_MATH_H */
2034 #endif /* _@GUARD_PREFIX@_MATH_H */