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");
573 # if !@HAVE_DECL_EXP2L@
575 _GL_FUNCDECL_SYS (exp2l, long double, (long double x));
577 _GL_CXXALIAS_SYS (exp2l, long double, (long double x));
578 _GL_CXXALIASWARN (exp2l);
579 #elif defined GNULIB_POSIXCHECK
581 # if HAVE_RAW_DECL_EXP2L
582 _GL_WARN_ON_USE (exp2l, "exp2l is unportable - "
583 "use gnulib module exp2l for portability");
589 # if @REPLACE_EXPM1F@
590 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
592 # define expm1f rpl_expm1f
594 _GL_FUNCDECL_RPL (expm1f, float, (float x));
595 _GL_CXXALIAS_RPL (expm1f, float, (float x));
598 _GL_FUNCDECL_SYS (expm1f, float, (float x));
600 _GL_CXXALIAS_SYS (expm1f, float, (float x));
602 _GL_CXXALIASWARN (expm1f);
603 #elif defined GNULIB_POSIXCHECK
605 # if HAVE_RAW_DECL_EXPM1F
606 _GL_WARN_ON_USE (expm1f, "expm1f is unportable - "
607 "use gnulib module expm1f for portability");
613 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
615 # define expm1 rpl_expm1
617 _GL_FUNCDECL_RPL (expm1, double, (double x));
618 _GL_CXXALIAS_RPL (expm1, double, (double x));
621 _GL_FUNCDECL_SYS (expm1, double, (double x));
623 _GL_CXXALIAS_SYS (expm1, double, (double x));
625 _GL_CXXALIASWARN (expm1);
626 #elif defined GNULIB_POSIXCHECK
628 # if HAVE_RAW_DECL_EXPM1
629 _GL_WARN_ON_USE (expm1, "expm1 is unportable - "
630 "use gnulib module expm1 for portability");
635 # if !@HAVE_DECL_EXPM1L@
637 _GL_FUNCDECL_SYS (expm1l, long double, (long double x));
639 _GL_CXXALIAS_SYS (expm1l, long double, (long double x));
640 _GL_CXXALIASWARN (expm1l);
641 #elif defined GNULIB_POSIXCHECK
643 # if HAVE_RAW_DECL_EXPM1L
644 _GL_WARN_ON_USE (expm1l, "expm1l is unportable - "
645 "use gnulib module expm1l for portability");
653 _GL_FUNCDECL_SYS (fabsf, float, (float x));
655 _GL_CXXALIAS_SYS (fabsf, float, (float x));
656 _GL_CXXALIASWARN (fabsf);
657 #elif defined GNULIB_POSIXCHECK
659 # if HAVE_RAW_DECL_FABSF
660 _GL_WARN_ON_USE (fabsf, "fabsf is unportable - "
661 "use gnulib module fabsf for portability");
667 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
669 # define fabsl rpl_fabsl
671 _GL_FUNCDECL_RPL (fabsl, long double, (long double x));
672 _GL_CXXALIAS_RPL (fabsl, long double, (long double x));
676 _GL_FUNCDECL_SYS (fabsl, long double, (long double x));
678 _GL_CXXALIAS_SYS (fabsl, long double, (long double x));
680 _GL_CXXALIASWARN (fabsl);
681 #elif defined GNULIB_POSIXCHECK
683 # if HAVE_RAW_DECL_FABSL
684 _GL_WARN_ON_USE (fabsl, "fabsl is unportable - "
685 "use gnulib module fabsl for portability");
691 # if @REPLACE_FLOORF@
692 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
694 # define floorf rpl_floorf
696 _GL_FUNCDECL_RPL (floorf, float, (float x));
697 _GL_CXXALIAS_RPL (floorf, float, (float x));
699 # if !@HAVE_DECL_FLOORF@
701 _GL_FUNCDECL_SYS (floorf, float, (float x));
703 _GL_CXXALIAS_SYS (floorf, float, (float x));
705 _GL_CXXALIASWARN (floorf);
706 #elif defined GNULIB_POSIXCHECK
708 # if HAVE_RAW_DECL_FLOORF
709 _GL_WARN_ON_USE (floorf, "floorf is unportable - "
710 "use gnulib module floorf for portability");
716 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
717 # define floor rpl_floor
719 _GL_FUNCDECL_RPL (floor, double, (double x));
720 _GL_CXXALIAS_RPL (floor, double, (double x));
722 _GL_CXXALIAS_SYS (floor, double, (double x));
724 _GL_CXXALIASWARN (floor);
728 # if @REPLACE_FLOORL@
729 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
731 # define floorl rpl_floorl
733 _GL_FUNCDECL_RPL (floorl, long double, (long double x));
734 _GL_CXXALIAS_RPL (floorl, long double, (long double x));
736 # if !@HAVE_DECL_FLOORL@
738 _GL_FUNCDECL_SYS (floorl, long double, (long double x));
740 _GL_CXXALIAS_SYS (floorl, long double, (long double x));
742 _GL_CXXALIASWARN (floorl);
743 #elif defined GNULIB_POSIXCHECK
745 # if HAVE_RAW_DECL_FLOORL
746 _GL_WARN_ON_USE (floorl, "floorl is unportable - "
747 "use gnulib module floorl for portability");
754 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
756 # define fmaf rpl_fmaf
758 _GL_FUNCDECL_RPL (fmaf, float, (float x, float y, float z));
759 _GL_CXXALIAS_RPL (fmaf, float, (float x, float y, float z));
762 _GL_FUNCDECL_SYS (fmaf, float, (float x, float y, float z));
764 _GL_CXXALIAS_SYS (fmaf, float, (float x, float y, float z));
766 _GL_CXXALIASWARN (fmaf);
767 #elif defined GNULIB_POSIXCHECK
769 # if HAVE_RAW_DECL_FMAF
770 _GL_WARN_ON_USE (fmaf, "fmaf is unportable - "
771 "use gnulib module fmaf for portability");
777 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
781 _GL_FUNCDECL_RPL (fma, double, (double x, double y, double z));
782 _GL_CXXALIAS_RPL (fma, double, (double x, double y, double z));
785 _GL_FUNCDECL_SYS (fma, double, (double x, double y, double z));
787 _GL_CXXALIAS_SYS (fma, double, (double x, double y, double z));
789 _GL_CXXALIASWARN (fma);
790 #elif defined GNULIB_POSIXCHECK
792 # if HAVE_RAW_DECL_FMA
793 _GL_WARN_ON_USE (fma, "fma is unportable - "
794 "use gnulib module fma for portability");
800 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
802 # define fmal rpl_fmal
804 _GL_FUNCDECL_RPL (fmal, long double,
805 (long double x, long double y, long double z));
806 _GL_CXXALIAS_RPL (fmal, long double,
807 (long double x, long double y, long double z));
811 _GL_FUNCDECL_SYS (fmal, long double,
812 (long double x, long double y, long double z));
814 _GL_CXXALIAS_SYS (fmal, long double,
815 (long double x, long double y, long double z));
817 _GL_CXXALIASWARN (fmal);
818 #elif defined GNULIB_POSIXCHECK
820 # if HAVE_RAW_DECL_FMAL
821 _GL_WARN_ON_USE (fmal, "fmal is unportable - "
822 "use gnulib module fmal for portability");
829 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
831 # define fmodf rpl_fmodf
833 _GL_FUNCDECL_RPL (fmodf, float, (float x, float y));
834 _GL_CXXALIAS_RPL (fmodf, float, (float x, float y));
838 _GL_FUNCDECL_SYS (fmodf, float, (float x, float y));
840 _GL_CXXALIAS_SYS (fmodf, float, (float x, float y));
842 _GL_CXXALIASWARN (fmodf);
843 #elif defined GNULIB_POSIXCHECK
845 # if HAVE_RAW_DECL_FMODF
846 _GL_WARN_ON_USE (fmodf, "fmodf is unportable - "
847 "use gnulib module fmodf for portability");
853 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
855 # define fmod rpl_fmod
857 _GL_FUNCDECL_RPL (fmod, double, (double x, double y));
858 _GL_CXXALIAS_RPL (fmod, double, (double x, double y));
860 _GL_CXXALIAS_SYS (fmod, double, (double x, double y));
862 _GL_CXXALIASWARN (fmod);
863 #elif defined GNULIB_POSIXCHECK
865 # if HAVE_RAW_DECL_FMOD
866 _GL_WARN_ON_USE (fmod, "fmod has portability problems - "
867 "use gnulib module fmod for portability");
873 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
875 # define fmodl rpl_fmodl
877 _GL_FUNCDECL_RPL (fmodl, long double, (long double x, long double y));
878 _GL_CXXALIAS_RPL (fmodl, long double, (long double x, long double y));
882 _GL_FUNCDECL_SYS (fmodl, long double, (long double x, long double y));
884 _GL_CXXALIAS_SYS (fmodl, long double, (long double x, long double y));
886 _GL_CXXALIASWARN (fmodl);
887 #elif defined GNULIB_POSIXCHECK
889 # if HAVE_RAW_DECL_FMODL
890 _GL_WARN_ON_USE (fmodl, "fmodl is unportable - "
891 "use gnulib module fmodl for portability");
899 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
900 If x is zero: mantissa = x, exp = 0.
901 If x is infinite or NaN: mantissa = x, exp unspecified.
902 Store exp in *EXPPTR and return mantissa. */
904 # if @REPLACE_FREXPF@
905 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
907 # define frexpf rpl_frexpf
909 _GL_FUNCDECL_RPL (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
910 _GL_CXXALIAS_RPL (frexpf, float, (float x, int *expptr));
914 _GL_FUNCDECL_SYS (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
916 _GL_CXXALIAS_SYS (frexpf, float, (float x, int *expptr));
918 _GL_CXXALIASWARN (frexpf);
919 #elif defined GNULIB_POSIXCHECK
921 # if HAVE_RAW_DECL_FREXPF
922 _GL_WARN_ON_USE (frexpf, "frexpf is unportable - "
923 "use gnulib module frexpf for portability");
930 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
931 If x is zero: mantissa = x, exp = 0.
932 If x is infinite or NaN: mantissa = x, exp unspecified.
933 Store exp in *EXPPTR and return mantissa. */
936 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
937 # define frexp rpl_frexp
939 _GL_FUNCDECL_RPL (frexp, double, (double x, int *expptr) _GL_ARG_NONNULL ((2)));
940 _GL_CXXALIAS_RPL (frexp, double, (double x, int *expptr));
942 _GL_CXXALIAS_SYS (frexp, double, (double x, int *expptr));
944 _GL_CXXALIASWARN (frexp);
945 #elif defined GNULIB_POSIXCHECK
947 /* Assume frexp is always declared. */
948 _GL_WARN_ON_USE (frexp, "frexp is unportable - "
949 "use gnulib module frexp for portability");
955 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
956 If x is zero: mantissa = x, exp = 0.
957 If x is infinite or NaN: mantissa = x, exp unspecified.
958 Store exp in *EXPPTR and return mantissa. */
959 #if @GNULIB_FREXPL@ && @REPLACE_FREXPL@
960 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
962 # define frexpl rpl_frexpl
964 _GL_FUNCDECL_RPL (frexpl, long double,
965 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
966 _GL_CXXALIAS_RPL (frexpl, long double, (long double x, int *expptr));
968 # if !@HAVE_DECL_FREXPL@
969 _GL_FUNCDECL_SYS (frexpl, long double,
970 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
973 _GL_CXXALIAS_SYS (frexpl, long double, (long double x, int *expptr));
976 #if @GNULIB_FREXPL@ && !(@REPLACE_FREXPL@ && !@HAVE_DECL_FREXPL@)
977 _GL_CXXALIASWARN (frexpl);
979 #if !@GNULIB_FREXPL@ && defined GNULIB_POSIXCHECK
981 # if HAVE_RAW_DECL_FREXPL
982 _GL_WARN_ON_USE (frexpl, "frexpl is unportable - "
983 "use gnulib module frexpl for portability");
988 /* Return sqrt(x^2+y^2). */
990 # if @REPLACE_HYPOTF@
991 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
993 # define hypotf rpl_hypotf
995 _GL_FUNCDECL_RPL (hypotf, float, (float x, float y));
996 _GL_CXXALIAS_RPL (hypotf, float, (float x, float y));
999 _GL_FUNCDECL_SYS (hypotf, float, (float x, float y));
1001 _GL_CXXALIAS_SYS (hypotf, float, (float x, float y));
1003 _GL_CXXALIASWARN (hypotf);
1004 #elif defined GNULIB_POSIXCHECK
1006 # if HAVE_RAW_DECL_HYPOTF
1007 _GL_WARN_ON_USE (hypotf, "hypotf is unportable - "
1008 "use gnulib module hypotf for portability");
1012 /* Return sqrt(x^2+y^2). */
1014 # if @REPLACE_HYPOT@
1015 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1017 # define hypot rpl_hypot
1019 _GL_FUNCDECL_RPL (hypot, double, (double x, double y));
1020 _GL_CXXALIAS_RPL (hypot, double, (double x, double y));
1022 _GL_CXXALIAS_SYS (hypot, double, (double x, double y));
1024 _GL_CXXALIASWARN (hypot);
1025 #elif defined GNULIB_POSIXCHECK
1027 # if HAVE_RAW_DECL_HYPOT
1028 _GL_WARN_ON_USE (hypotf, "hypot has portability problems - "
1029 "use gnulib module hypot for portability");
1033 /* Return sqrt(x^2+y^2). */
1035 # if @REPLACE_HYPOTL@
1036 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1038 # define hypotl rpl_hypotl
1040 _GL_FUNCDECL_RPL (hypotl, long double, (long double x, long double y));
1041 _GL_CXXALIAS_RPL (hypotl, long double, (long double x, long double y));
1044 _GL_FUNCDECL_SYS (hypotl, long double, (long double x, long double y));
1046 _GL_CXXALIAS_SYS (hypotl, long double, (long double x, long double y));
1048 _GL_CXXALIASWARN (hypotl);
1049 #elif defined GNULIB_POSIXCHECK
1051 # if HAVE_RAW_DECL_HYPOTL
1052 _GL_WARN_ON_USE (hypotl, "hypotl is unportable - "
1053 "use gnulib module hypotl for portability");
1058 /* Return x * 2^exp. */
1062 _GL_FUNCDECL_SYS (ldexpf, float, (float x, int exp));
1064 _GL_CXXALIAS_SYS (ldexpf, float, (float x, int exp));
1065 _GL_CXXALIASWARN (ldexpf);
1066 #elif defined GNULIB_POSIXCHECK
1068 # if HAVE_RAW_DECL_LDEXPF
1069 _GL_WARN_ON_USE (ldexpf, "ldexpf is unportable - "
1070 "use gnulib module ldexpf for portability");
1074 /* Return x * 2^exp. */
1075 #if @GNULIB_LDEXPL@ && @REPLACE_LDEXPL@
1076 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1078 # define ldexpl rpl_ldexpl
1080 _GL_FUNCDECL_RPL (ldexpl, long double, (long double x, int exp));
1081 _GL_CXXALIAS_RPL (ldexpl, long double, (long double x, int exp));
1083 # if !@HAVE_DECL_LDEXPL@
1084 _GL_FUNCDECL_SYS (ldexpl, long double, (long double x, int exp));
1086 # if @GNULIB_LDEXPL@
1087 _GL_CXXALIAS_SYS (ldexpl, long double, (long double x, int exp));
1091 _GL_CXXALIASWARN (ldexpl);
1093 #if !@GNULIB_LDEXPL@ && defined GNULIB_POSIXCHECK
1095 # if HAVE_RAW_DECL_LDEXPL
1096 _GL_WARN_ON_USE (ldexpl, "ldexpl is unportable - "
1097 "use gnulib module ldexpl for portability");
1103 # if !@HAVE_DECL_LOGB@
1104 _GL_EXTERN_C double logb (double x);
1106 #elif defined GNULIB_POSIXCHECK
1108 # if HAVE_RAW_DECL_LOGB
1109 _GL_WARN_ON_USE (logb, "logb is unportable - "
1110 "use gnulib module logb for portability");
1118 _GL_FUNCDECL_SYS (logf, float, (float x));
1120 _GL_CXXALIAS_SYS (logf, float, (float x));
1121 _GL_CXXALIASWARN (logf);
1122 #elif defined GNULIB_POSIXCHECK
1124 # if HAVE_RAW_DECL_LOGF
1125 _GL_WARN_ON_USE (logf, "logf is unportable - "
1126 "use gnulib module logf for portability");
1131 # if !@HAVE_LOGL@ || !@HAVE_DECL_LOGL@
1133 _GL_FUNCDECL_SYS (logl, long double, (long double x));
1135 _GL_CXXALIAS_SYS (logl, long double, (long double x));
1136 _GL_CXXALIASWARN (logl);
1137 #elif defined GNULIB_POSIXCHECK
1139 # if HAVE_RAW_DECL_LOGL
1140 _GL_WARN_ON_USE (logl, "logl is unportable - "
1141 "use gnulib module logl for portability");
1149 _GL_FUNCDECL_SYS (log10f, float, (float x));
1151 _GL_CXXALIAS_SYS (log10f, float, (float x));
1152 _GL_CXXALIASWARN (log10f);
1153 #elif defined GNULIB_POSIXCHECK
1155 # if HAVE_RAW_DECL_LOG10F
1156 _GL_WARN_ON_USE (log10f, "log10f is unportable - "
1157 "use gnulib module log10f for portability");
1162 # if !@HAVE_LOG10L@ || !@HAVE_DECL_LOG10L@
1164 _GL_FUNCDECL_SYS (log10l, long double, (long double x));
1166 _GL_CXXALIAS_SYS (log10l, long double, (long double x));
1167 _GL_CXXALIASWARN (log10l);
1168 #elif defined GNULIB_POSIXCHECK
1170 # if HAVE_RAW_DECL_LOG10L
1171 _GL_WARN_ON_USE (log10l, "log10l is unportable - "
1172 "use gnulib module log10l for portability");
1178 # if @REPLACE_MODFF@
1179 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1181 # define modff rpl_modff
1183 _GL_FUNCDECL_RPL (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1184 _GL_CXXALIAS_RPL (modff, float, (float x, float *iptr));
1188 _GL_FUNCDECL_SYS (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1190 _GL_CXXALIAS_SYS (modff, float, (float x, float *iptr));
1192 _GL_CXXALIASWARN (modff);
1193 #elif defined GNULIB_POSIXCHECK
1195 # if HAVE_RAW_DECL_MODFF
1196 _GL_WARN_ON_USE (modff, "modff is unportable - "
1197 "use gnulib module modff for portability");
1203 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1205 # define modf rpl_modf
1207 _GL_FUNCDECL_RPL (modf, double, (double x, double *iptr) _GL_ARG_NONNULL ((2)));
1208 _GL_CXXALIAS_RPL (modf, double, (double x, double *iptr));
1210 _GL_CXXALIAS_SYS (modf, double, (double x, double *iptr));
1212 _GL_CXXALIASWARN (modf);
1213 #elif defined GNULIB_POSIXCHECK
1215 # if HAVE_RAW_DECL_MODF
1216 _GL_WARN_ON_USE (modf, "modf has portability problems - "
1217 "use gnulib module modf for portability");
1222 # if @REPLACE_MODFL@
1223 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1225 # define modfl rpl_modfl
1227 _GL_FUNCDECL_RPL (modfl, long double, (long double x, long double *iptr)
1228 _GL_ARG_NONNULL ((2)));
1229 _GL_CXXALIAS_RPL (modfl, long double, (long double x, long double *iptr));
1233 _GL_FUNCDECL_SYS (modfl, long double, (long double x, long double *iptr)
1234 _GL_ARG_NONNULL ((2)));
1236 _GL_CXXALIAS_SYS (modfl, long double, (long double x, long double *iptr));
1238 _GL_CXXALIASWARN (modfl);
1239 #elif defined GNULIB_POSIXCHECK
1241 # if HAVE_RAW_DECL_MODFL
1242 _GL_WARN_ON_USE (modfl, "modfl is unportable - "
1243 "use gnulib module modfl for portability");
1251 _GL_FUNCDECL_SYS (powf, float, (float x, float y));
1253 _GL_CXXALIAS_SYS (powf, float, (float x, float y));
1254 _GL_CXXALIASWARN (powf);
1255 #elif defined GNULIB_POSIXCHECK
1257 # if HAVE_RAW_DECL_POWF
1258 _GL_WARN_ON_USE (powf, "powf is unportable - "
1259 "use gnulib module powf for portability");
1264 #if @GNULIB_REMAINDERF@
1265 # if @REPLACE_REMAINDERF@
1266 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1268 # define remainderf rpl_remainderf
1270 _GL_FUNCDECL_RPL (remainderf, float, (float x, float y));
1271 _GL_CXXALIAS_RPL (remainderf, float, (float x, float y));
1273 # if !@HAVE_REMAINDERF@
1274 _GL_FUNCDECL_SYS (remainderf, float, (float x, float y));
1276 _GL_CXXALIAS_SYS (remainderf, float, (float x, float y));
1278 _GL_CXXALIASWARN (remainderf);
1279 #elif defined GNULIB_POSIXCHECK
1281 # if HAVE_RAW_DECL_REMAINDERF
1282 _GL_WARN_ON_USE (remainderf, "remainderf is unportable - "
1283 "use gnulib module remainderf for portability");
1287 #if @GNULIB_REMAINDER@
1288 # if @REPLACE_REMAINDER@
1289 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1291 # define remainder rpl_remainder
1293 _GL_FUNCDECL_RPL (remainder, double, (double x, double y));
1294 _GL_CXXALIAS_RPL (remainder, double, (double x, double y));
1296 # if !@HAVE_REMAINDER@ || !@HAVE_DECL_REMAINDER@
1297 _GL_FUNCDECL_SYS (remainder, double, (double x, double y));
1299 _GL_CXXALIAS_SYS (remainder, double, (double x, double y));
1301 _GL_CXXALIASWARN (remainder);
1302 #elif defined GNULIB_POSIXCHECK
1304 # if HAVE_RAW_DECL_REMAINDER
1305 _GL_WARN_ON_USE (remainder, "remainder is unportable - "
1306 "use gnulib module remainder for portability");
1310 #if @GNULIB_REMAINDERL@
1311 # if @REPLACE_REMAINDERL@
1312 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1314 # define remainderl rpl_remainderl
1316 _GL_FUNCDECL_RPL (remainderl, long double, (long double x, long double y));
1317 _GL_CXXALIAS_RPL (remainderl, long double, (long double x, long double y));
1319 # if !@HAVE_DECL_REMAINDERL@
1320 _GL_FUNCDECL_SYS (remainderl, long double, (long double x, long double y));
1322 _GL_CXXALIAS_SYS (remainderl, long double, (long double x, long double y));
1324 _GL_CXXALIASWARN (remainderl);
1325 #elif defined GNULIB_POSIXCHECK
1327 # if HAVE_RAW_DECL_REMAINDERL
1328 _GL_WARN_ON_USE (remainderl, "remainderl is unportable - "
1329 "use gnulib module remainderl for portability");
1335 # if !@HAVE_DECL_RINTF@
1336 _GL_FUNCDECL_SYS (rintf, float, (float x));
1338 _GL_CXXALIAS_SYS (rintf, float, (float x));
1339 _GL_CXXALIASWARN (rintf);
1340 #elif defined GNULIB_POSIXCHECK
1342 # if HAVE_RAW_DECL_RINTF
1343 _GL_WARN_ON_USE (rintf, "rintf is unportable - "
1344 "use gnulib module rintf for portability");
1350 _GL_FUNCDECL_SYS (rint, double, (double x));
1352 _GL_CXXALIAS_SYS (rint, double, (double x));
1353 _GL_CXXALIASWARN (rint);
1354 #elif defined GNULIB_POSIXCHECK
1356 # if HAVE_RAW_DECL_RINT
1357 _GL_WARN_ON_USE (rint, "rint is unportable - "
1358 "use gnulib module rint for portability");
1364 _GL_FUNCDECL_SYS (rintl, long double, (long double x));
1366 _GL_CXXALIAS_SYS (rintl, long double, (long double x));
1367 _GL_CXXALIASWARN (rintl);
1368 #elif defined GNULIB_POSIXCHECK
1370 # if HAVE_RAW_DECL_RINTL
1371 _GL_WARN_ON_USE (rintl, "rintl is unportable - "
1372 "use gnulib module rintl for portability");
1378 # if @REPLACE_ROUNDF@
1379 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1381 # define roundf rpl_roundf
1383 _GL_FUNCDECL_RPL (roundf, float, (float x));
1384 _GL_CXXALIAS_RPL (roundf, float, (float x));
1386 # if !@HAVE_DECL_ROUNDF@
1387 _GL_FUNCDECL_SYS (roundf, float, (float x));
1389 _GL_CXXALIAS_SYS (roundf, float, (float x));
1391 _GL_CXXALIASWARN (roundf);
1392 #elif defined GNULIB_POSIXCHECK
1394 # if HAVE_RAW_DECL_ROUNDF
1395 _GL_WARN_ON_USE (roundf, "roundf is unportable - "
1396 "use gnulib module roundf for portability");
1401 # if @REPLACE_ROUND@
1402 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1404 # define round rpl_round
1406 _GL_FUNCDECL_RPL (round, double, (double x));
1407 _GL_CXXALIAS_RPL (round, double, (double x));
1409 # if !@HAVE_DECL_ROUND@
1410 _GL_FUNCDECL_SYS (round, double, (double x));
1412 _GL_CXXALIAS_SYS (round, double, (double x));
1414 _GL_CXXALIASWARN (round);
1415 #elif defined GNULIB_POSIXCHECK
1417 # if HAVE_RAW_DECL_ROUND
1418 _GL_WARN_ON_USE (round, "round is unportable - "
1419 "use gnulib module round for portability");
1424 # if @REPLACE_ROUNDL@
1425 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1427 # define roundl rpl_roundl
1429 _GL_FUNCDECL_RPL (roundl, long double, (long double x));
1430 _GL_CXXALIAS_RPL (roundl, long double, (long double x));
1432 # if !@HAVE_DECL_ROUNDL@
1434 _GL_FUNCDECL_SYS (roundl, long double, (long double x));
1436 _GL_CXXALIAS_SYS (roundl, long double, (long double x));
1438 _GL_CXXALIASWARN (roundl);
1439 #elif defined GNULIB_POSIXCHECK
1441 # if HAVE_RAW_DECL_ROUNDL
1442 _GL_WARN_ON_USE (roundl, "roundl is unportable - "
1443 "use gnulib module roundl for portability");
1451 _GL_FUNCDECL_SYS (sinf, float, (float x));
1453 _GL_CXXALIAS_SYS (sinf, float, (float x));
1454 _GL_CXXALIASWARN (sinf);
1455 #elif defined GNULIB_POSIXCHECK
1457 # if HAVE_RAW_DECL_SINF
1458 _GL_WARN_ON_USE (sinf, "sinf is unportable - "
1459 "use gnulib module sinf for portability");
1464 # if !@HAVE_SINL@ || !@HAVE_DECL_SINL@
1466 _GL_FUNCDECL_SYS (sinl, long double, (long double x));
1468 _GL_CXXALIAS_SYS (sinl, long double, (long double x));
1469 _GL_CXXALIASWARN (sinl);
1470 #elif defined GNULIB_POSIXCHECK
1472 # if HAVE_RAW_DECL_SINL
1473 _GL_WARN_ON_USE (sinl, "sinl is unportable - "
1474 "use gnulib module sinl for portability");
1482 _GL_FUNCDECL_SYS (sinhf, float, (float x));
1484 _GL_CXXALIAS_SYS (sinhf, float, (float x));
1485 _GL_CXXALIASWARN (sinhf);
1486 #elif defined GNULIB_POSIXCHECK
1488 # if HAVE_RAW_DECL_SINHF
1489 _GL_WARN_ON_USE (sinhf, "sinhf is unportable - "
1490 "use gnulib module sinhf for portability");
1498 _GL_FUNCDECL_SYS (sqrtf, float, (float x));
1500 _GL_CXXALIAS_SYS (sqrtf, float, (float x));
1501 _GL_CXXALIASWARN (sqrtf);
1502 #elif defined GNULIB_POSIXCHECK
1504 # if HAVE_RAW_DECL_SQRTF
1505 _GL_WARN_ON_USE (sqrtf, "sqrtf is unportable - "
1506 "use gnulib module sqrtf for portability");
1511 # if !@HAVE_SQRTL@ || !@HAVE_DECL_SQRTL@
1513 _GL_FUNCDECL_SYS (sqrtl, long double, (long double x));
1515 _GL_CXXALIAS_SYS (sqrtl, long double, (long double x));
1516 _GL_CXXALIASWARN (sqrtl);
1517 #elif defined GNULIB_POSIXCHECK
1519 # if HAVE_RAW_DECL_SQRTL
1520 _GL_WARN_ON_USE (sqrtl, "sqrtl is unportable - "
1521 "use gnulib module sqrtl for portability");
1529 _GL_FUNCDECL_SYS (tanf, float, (float x));
1531 _GL_CXXALIAS_SYS (tanf, float, (float x));
1532 _GL_CXXALIASWARN (tanf);
1533 #elif defined GNULIB_POSIXCHECK
1535 # if HAVE_RAW_DECL_TANF
1536 _GL_WARN_ON_USE (tanf, "tanf is unportable - "
1537 "use gnulib module tanf for portability");
1542 # if !@HAVE_TANL@ || !@HAVE_DECL_TANL@
1544 _GL_FUNCDECL_SYS (tanl, long double, (long double x));
1546 _GL_CXXALIAS_SYS (tanl, long double, (long double x));
1547 _GL_CXXALIASWARN (tanl);
1548 #elif defined GNULIB_POSIXCHECK
1550 # if HAVE_RAW_DECL_TANL
1551 _GL_WARN_ON_USE (tanl, "tanl is unportable - "
1552 "use gnulib module tanl for portability");
1560 _GL_FUNCDECL_SYS (tanhf, float, (float x));
1562 _GL_CXXALIAS_SYS (tanhf, float, (float x));
1563 _GL_CXXALIASWARN (tanhf);
1564 #elif defined GNULIB_POSIXCHECK
1566 # if HAVE_RAW_DECL_TANHF
1567 _GL_WARN_ON_USE (tanhf, "tanhf is unportable - "
1568 "use gnulib module tanhf for portability");
1574 # if @REPLACE_TRUNCF@
1575 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1576 # define truncf rpl_truncf
1578 _GL_FUNCDECL_RPL (truncf, float, (float x));
1579 _GL_CXXALIAS_RPL (truncf, float, (float x));
1581 # if !@HAVE_DECL_TRUNCF@
1582 _GL_FUNCDECL_SYS (truncf, float, (float x));
1584 _GL_CXXALIAS_SYS (truncf, float, (float x));
1586 _GL_CXXALIASWARN (truncf);
1587 #elif defined GNULIB_POSIXCHECK
1589 # if HAVE_RAW_DECL_TRUNCF
1590 _GL_WARN_ON_USE (truncf, "truncf is unportable - "
1591 "use gnulib module truncf for portability");
1596 # if @REPLACE_TRUNC@
1597 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1598 # define trunc rpl_trunc
1600 _GL_FUNCDECL_RPL (trunc, double, (double x));
1601 _GL_CXXALIAS_RPL (trunc, double, (double x));
1603 # if !@HAVE_DECL_TRUNC@
1604 _GL_FUNCDECL_SYS (trunc, double, (double x));
1606 _GL_CXXALIAS_SYS (trunc, double, (double x));
1608 _GL_CXXALIASWARN (trunc);
1609 #elif defined GNULIB_POSIXCHECK
1611 # if HAVE_RAW_DECL_TRUNC
1612 _GL_WARN_ON_USE (trunc, "trunc is unportable - "
1613 "use gnulib module trunc for portability");
1618 # if @REPLACE_TRUNCL@
1619 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1621 # define truncl rpl_truncl
1623 _GL_FUNCDECL_RPL (truncl, long double, (long double x));
1624 _GL_CXXALIAS_RPL (truncl, long double, (long double x));
1626 # if !@HAVE_DECL_TRUNCL@
1627 _GL_FUNCDECL_SYS (truncl, long double, (long double x));
1629 _GL_CXXALIAS_SYS (truncl, long double, (long double x));
1631 _GL_CXXALIASWARN (truncl);
1632 #elif defined GNULIB_POSIXCHECK
1634 # if HAVE_RAW_DECL_TRUNCL
1635 _GL_WARN_ON_USE (truncl, "truncl is unportable - "
1636 "use gnulib module truncl for portability");
1641 /* Definitions of function-like macros come here, after the function
1645 #if @GNULIB_ISFINITE@
1646 # if @REPLACE_ISFINITE@
1647 _GL_EXTERN_C int gl_isfinitef (float x);
1648 _GL_EXTERN_C int gl_isfinited (double x);
1649 _GL_EXTERN_C int gl_isfinitel (long double x);
1651 # define isfinite(x) \
1652 (sizeof (x) == sizeof (long double) ? gl_isfinitel (x) : \
1653 sizeof (x) == sizeof (double) ? gl_isfinited (x) : \
1658 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isfinite)
1660 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isfinite)
1663 #elif defined GNULIB_POSIXCHECK
1664 # if defined isfinite
1665 _GL_WARN_REAL_FLOATING_DECL (isfinite);
1667 # define isfinite(x) _GL_WARN_REAL_FLOATING_IMPL (isfinite, x)
1673 # if @REPLACE_ISINF@
1674 _GL_EXTERN_C int gl_isinff (float x);
1675 _GL_EXTERN_C int gl_isinfd (double x);
1676 _GL_EXTERN_C int gl_isinfl (long double x);
1679 (sizeof (x) == sizeof (long double) ? gl_isinfl (x) : \
1680 sizeof (x) == sizeof (double) ? gl_isinfd (x) : \
1685 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isinf)
1687 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isinf)
1690 #elif defined GNULIB_POSIXCHECK
1692 _GL_WARN_REAL_FLOATING_DECL (isinf);
1694 # define isinf(x) _GL_WARN_REAL_FLOATING_IMPL (isinf, x)
1700 /* Test for NaN for 'float' numbers. */
1702 /* The original <math.h> included above provides a declaration of isnan macro
1703 or (older) isnanf function. */
1705 /* GCC 4.0 and newer provides three built-ins for isnan. */
1707 # define isnanf(x) __builtin_isnanf ((float)(x))
1708 # elif defined isnan
1710 # define isnanf(x) isnan ((float)(x))
1713 /* Test whether X is a NaN. */
1715 # define isnanf rpl_isnanf
1716 _GL_EXTERN_C int isnanf (float x);
1721 /* Test for NaN for 'double' numbers.
1722 This function is a gnulib extension, unlike isnan() which applied only
1723 to 'double' numbers earlier but now is a type-generic macro. */
1725 /* The original <math.h> included above provides a declaration of isnan
1728 /* GCC 4.0 and newer provides three built-ins for isnan. */
1730 # define isnand(x) __builtin_isnan ((double)(x))
1733 # define isnand(x) isnan ((double)(x))
1736 /* Test whether X is a NaN. */
1738 # define isnand rpl_isnand
1739 _GL_EXTERN_C int isnand (double x);
1744 /* Test for NaN for 'long double' numbers. */
1746 /* The original <math.h> included above provides a declaration of isnan
1747 macro or (older) isnanl function. */
1749 /* GCC 4.0 and newer provides three built-ins for isnan. */
1751 # define isnanl(x) __builtin_isnanl ((long double)(x))
1752 # elif defined isnan
1754 # define isnanl(x) isnan ((long double)(x))
1757 /* Test whether X is a NaN. */
1759 # define isnanl rpl_isnanl
1760 _GL_EXTERN_C int isnanl (long double x) _GL_ATTRIBUTE_CONST;
1764 /* This must come *after* the snippets for GNULIB_ISNANF and GNULIB_ISNANL! */
1766 # if @REPLACE_ISNAN@
1767 /* We can't just use the isnanf macro (e.g.) as exposed by
1768 isnanf.h (e.g.) here, because those may end up being macros
1769 that recursively expand back to isnan. So use the gnulib
1770 replacements for them directly. */
1771 # if @HAVE_ISNANF@ && __GNUC__ >= 4
1772 # define gl_isnan_f(x) __builtin_isnanf ((float)(x))
1774 _GL_EXTERN_C int rpl_isnanf (float x);
1775 # define gl_isnan_f(x) rpl_isnanf (x)
1777 # if @HAVE_ISNAND@ && __GNUC__ >= 4
1778 # define gl_isnan_d(x) __builtin_isnan ((double)(x))
1780 _GL_EXTERN_C int rpl_isnand (double x);
1781 # define gl_isnan_d(x) rpl_isnand (x)
1783 # if @HAVE_ISNANL@ && __GNUC__ >= 4
1784 # define gl_isnan_l(x) __builtin_isnanl ((long double)(x))
1786 _GL_EXTERN_C int rpl_isnanl (long double x) _GL_ATTRIBUTE_CONST;
1787 # define gl_isnan_l(x) rpl_isnanl (x)
1791 (sizeof (x) == sizeof (long double) ? gl_isnan_l (x) : \
1792 sizeof (x) == sizeof (double) ? gl_isnan_d (x) : \
1794 # elif __GNUC__ >= 4
1797 (sizeof (x) == sizeof (long double) ? __builtin_isnanl ((long double)(x)) : \
1798 sizeof (x) == sizeof (double) ? __builtin_isnan ((double)(x)) : \
1799 __builtin_isnanf ((float)(x)))
1803 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isnan)
1805 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isnan)
1808 /* Ensure isnan is a macro. */
1810 # define isnan isnan
1813 #elif defined GNULIB_POSIXCHECK
1815 _GL_WARN_REAL_FLOATING_DECL (isnan);
1817 # define isnan(x) _GL_WARN_REAL_FLOATING_IMPL (isnan, x)
1822 #if @GNULIB_SIGNBIT@
1823 # if @REPLACE_SIGNBIT_USING_GCC@
1825 /* GCC 4.0 and newer provides three built-ins for signbit. */
1826 # define signbit(x) \
1827 (sizeof (x) == sizeof (long double) ? __builtin_signbitl (x) : \
1828 sizeof (x) == sizeof (double) ? __builtin_signbit (x) : \
1829 __builtin_signbitf (x))
1831 # if @REPLACE_SIGNBIT@
1833 _GL_EXTERN_C int gl_signbitf (float arg);
1834 _GL_EXTERN_C int gl_signbitd (double arg);
1835 _GL_EXTERN_C int gl_signbitl (long double arg);
1836 # if __GNUC__ >= 2 && !defined __STRICT_ANSI__
1837 # define _GL_NUM_UINT_WORDS(type) \
1838 ((sizeof (type) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
1839 # if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT && !defined gl_signbitf
1840 # define gl_signbitf_OPTIMIZED_MACRO
1841 # define gl_signbitf(arg) \
1842 ({ union { float _value; \
1843 unsigned int _word[_GL_NUM_UINT_WORDS (float)]; \
1845 _m._value = (arg); \
1846 (_m._word[FLT_SIGNBIT_WORD] >> FLT_SIGNBIT_BIT) & 1; \
1849 # if defined DBL_SIGNBIT_WORD && defined DBL_SIGNBIT_BIT && !defined gl_signbitd
1850 # define gl_signbitd_OPTIMIZED_MACRO
1851 # define gl_signbitd(arg) \
1852 ({ union { double _value; \
1853 unsigned int _word[_GL_NUM_UINT_WORDS (double)]; \
1855 _m._value = (arg); \
1856 (_m._word[DBL_SIGNBIT_WORD] >> DBL_SIGNBIT_BIT) & 1; \
1859 # if defined LDBL_SIGNBIT_WORD && defined LDBL_SIGNBIT_BIT && !defined gl_signbitl
1860 # define gl_signbitl_OPTIMIZED_MACRO
1861 # define gl_signbitl(arg) \
1862 ({ union { long double _value; \
1863 unsigned int _word[_GL_NUM_UINT_WORDS (long double)]; \
1865 _m._value = (arg); \
1866 (_m._word[LDBL_SIGNBIT_WORD] >> LDBL_SIGNBIT_BIT) & 1; \
1870 # define signbit(x) \
1871 (sizeof (x) == sizeof (long double) ? gl_signbitl (x) : \
1872 sizeof (x) == sizeof (double) ? gl_signbitd (x) : \
1877 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (signbit)
1879 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (signbit)
1882 #elif defined GNULIB_POSIXCHECK
1883 # if defined signbit
1884 _GL_WARN_REAL_FLOATING_DECL (signbit);
1886 # define signbit(x) _GL_WARN_REAL_FLOATING_IMPL (signbit, x)
1891 #endif /* _@GUARD_PREFIX@_MATH_H */
1892 #endif /* _@GUARD_PREFIX@_MATH_H */