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 @REPLACE_EXPM1F@
575 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
577 # define expm1f rpl_expm1f
579 _GL_FUNCDECL_RPL (expm1f, float, (float x));
580 _GL_CXXALIAS_RPL (expm1f, float, (float x));
583 _GL_FUNCDECL_SYS (expm1f, float, (float x));
585 _GL_CXXALIAS_SYS (expm1f, float, (float x));
587 _GL_CXXALIASWARN (expm1f);
588 #elif defined GNULIB_POSIXCHECK
590 # if HAVE_RAW_DECL_EXPM1F
591 _GL_WARN_ON_USE (expm1f, "expm1f is unportable - "
592 "use gnulib module expm1f for portability");
598 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
600 # define expm1 rpl_expm1
602 _GL_FUNCDECL_RPL (expm1, double, (double x));
603 _GL_CXXALIAS_RPL (expm1, double, (double x));
606 _GL_FUNCDECL_SYS (expm1, double, (double x));
608 _GL_CXXALIAS_SYS (expm1, double, (double x));
610 _GL_CXXALIASWARN (expm1);
611 #elif defined GNULIB_POSIXCHECK
613 # if HAVE_RAW_DECL_EXPM1
614 _GL_WARN_ON_USE (expm1, "expm1 is unportable - "
615 "use gnulib module expm1 for portability");
620 # if !@HAVE_DECL_EXPM1L@
622 _GL_FUNCDECL_SYS (expm1l, long double, (long double x));
624 _GL_CXXALIAS_SYS (expm1l, long double, (long double x));
625 _GL_CXXALIASWARN (expm1l);
626 #elif defined GNULIB_POSIXCHECK
628 # if HAVE_RAW_DECL_EXPM1L
629 _GL_WARN_ON_USE (expm1l, "expm1l is unportable - "
630 "use gnulib module expm1l for portability");
638 _GL_FUNCDECL_SYS (fabsf, float, (float x));
640 _GL_CXXALIAS_SYS (fabsf, float, (float x));
641 _GL_CXXALIASWARN (fabsf);
642 #elif defined GNULIB_POSIXCHECK
644 # if HAVE_RAW_DECL_FABSF
645 _GL_WARN_ON_USE (fabsf, "fabsf is unportable - "
646 "use gnulib module fabsf for portability");
652 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
654 # define fabsl rpl_fabsl
656 _GL_FUNCDECL_RPL (fabsl, long double, (long double x));
657 _GL_CXXALIAS_RPL (fabsl, long double, (long double x));
661 _GL_FUNCDECL_SYS (fabsl, long double, (long double x));
663 _GL_CXXALIAS_SYS (fabsl, long double, (long double x));
665 _GL_CXXALIASWARN (fabsl);
666 #elif defined GNULIB_POSIXCHECK
668 # if HAVE_RAW_DECL_FABSL
669 _GL_WARN_ON_USE (fabsl, "fabsl is unportable - "
670 "use gnulib module fabsl for portability");
676 # if @REPLACE_FLOORF@
677 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
679 # define floorf rpl_floorf
681 _GL_FUNCDECL_RPL (floorf, float, (float x));
682 _GL_CXXALIAS_RPL (floorf, float, (float x));
684 # if !@HAVE_DECL_FLOORF@
686 _GL_FUNCDECL_SYS (floorf, float, (float x));
688 _GL_CXXALIAS_SYS (floorf, float, (float x));
690 _GL_CXXALIASWARN (floorf);
691 #elif defined GNULIB_POSIXCHECK
693 # if HAVE_RAW_DECL_FLOORF
694 _GL_WARN_ON_USE (floorf, "floorf is unportable - "
695 "use gnulib module floorf for portability");
701 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
702 # define floor rpl_floor
704 _GL_FUNCDECL_RPL (floor, double, (double x));
705 _GL_CXXALIAS_RPL (floor, double, (double x));
707 _GL_CXXALIAS_SYS (floor, double, (double x));
709 _GL_CXXALIASWARN (floor);
713 # if @REPLACE_FLOORL@
714 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
716 # define floorl rpl_floorl
718 _GL_FUNCDECL_RPL (floorl, long double, (long double x));
719 _GL_CXXALIAS_RPL (floorl, long double, (long double x));
721 # if !@HAVE_DECL_FLOORL@
723 _GL_FUNCDECL_SYS (floorl, long double, (long double x));
725 _GL_CXXALIAS_SYS (floorl, long double, (long double x));
727 _GL_CXXALIASWARN (floorl);
728 #elif defined GNULIB_POSIXCHECK
730 # if HAVE_RAW_DECL_FLOORL
731 _GL_WARN_ON_USE (floorl, "floorl is unportable - "
732 "use gnulib module floorl for portability");
739 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
741 # define fmaf rpl_fmaf
743 _GL_FUNCDECL_RPL (fmaf, float, (float x, float y, float z));
744 _GL_CXXALIAS_RPL (fmaf, float, (float x, float y, float z));
747 _GL_FUNCDECL_SYS (fmaf, float, (float x, float y, float z));
749 _GL_CXXALIAS_SYS (fmaf, float, (float x, float y, float z));
751 _GL_CXXALIASWARN (fmaf);
752 #elif defined GNULIB_POSIXCHECK
754 # if HAVE_RAW_DECL_FMAF
755 _GL_WARN_ON_USE (fmaf, "fmaf is unportable - "
756 "use gnulib module fmaf for portability");
762 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
766 _GL_FUNCDECL_RPL (fma, double, (double x, double y, double z));
767 _GL_CXXALIAS_RPL (fma, double, (double x, double y, double z));
770 _GL_FUNCDECL_SYS (fma, double, (double x, double y, double z));
772 _GL_CXXALIAS_SYS (fma, double, (double x, double y, double z));
774 _GL_CXXALIASWARN (fma);
775 #elif defined GNULIB_POSIXCHECK
777 # if HAVE_RAW_DECL_FMA
778 _GL_WARN_ON_USE (fma, "fma is unportable - "
779 "use gnulib module fma for portability");
785 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
787 # define fmal rpl_fmal
789 _GL_FUNCDECL_RPL (fmal, long double,
790 (long double x, long double y, long double z));
791 _GL_CXXALIAS_RPL (fmal, long double,
792 (long double x, long double y, long double z));
796 _GL_FUNCDECL_SYS (fmal, long double,
797 (long double x, long double y, long double z));
799 _GL_CXXALIAS_SYS (fmal, long double,
800 (long double x, long double y, long double z));
802 _GL_CXXALIASWARN (fmal);
803 #elif defined GNULIB_POSIXCHECK
805 # if HAVE_RAW_DECL_FMAL
806 _GL_WARN_ON_USE (fmal, "fmal is unportable - "
807 "use gnulib module fmal for portability");
814 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
816 # define fmodf rpl_fmodf
818 _GL_FUNCDECL_RPL (fmodf, float, (float x, float y));
819 _GL_CXXALIAS_RPL (fmodf, float, (float x, float y));
823 _GL_FUNCDECL_SYS (fmodf, float, (float x, float y));
825 _GL_CXXALIAS_SYS (fmodf, float, (float x, float y));
827 _GL_CXXALIASWARN (fmodf);
828 #elif defined GNULIB_POSIXCHECK
830 # if HAVE_RAW_DECL_FMODF
831 _GL_WARN_ON_USE (fmodf, "fmodf is unportable - "
832 "use gnulib module fmodf for portability");
838 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
840 # define fmod rpl_fmod
842 _GL_FUNCDECL_RPL (fmod, double, (double x, double y));
843 _GL_CXXALIAS_RPL (fmod, double, (double x, double y));
845 _GL_CXXALIAS_SYS (fmod, double, (double x, double y));
847 _GL_CXXALIASWARN (fmod);
848 #elif defined GNULIB_POSIXCHECK
850 # if HAVE_RAW_DECL_FMOD
851 _GL_WARN_ON_USE (fmod, "fmod has portability problems - "
852 "use gnulib module fmod for portability");
858 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
860 # define fmodl rpl_fmodl
862 _GL_FUNCDECL_RPL (fmodl, long double, (long double x, long double y));
863 _GL_CXXALIAS_RPL (fmodl, long double, (long double x, long double y));
867 _GL_FUNCDECL_SYS (fmodl, long double, (long double x, long double y));
869 _GL_CXXALIAS_SYS (fmodl, long double, (long double x, long double y));
871 _GL_CXXALIASWARN (fmodl);
872 #elif defined GNULIB_POSIXCHECK
874 # if HAVE_RAW_DECL_FMODL
875 _GL_WARN_ON_USE (fmodl, "fmodl is unportable - "
876 "use gnulib module fmodl for portability");
884 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
885 If x is zero: mantissa = x, exp = 0.
886 If x is infinite or NaN: mantissa = x, exp unspecified.
887 Store exp in *EXPPTR and return mantissa. */
889 # if @REPLACE_FREXPF@
890 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
892 # define frexpf rpl_frexpf
894 _GL_FUNCDECL_RPL (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
895 _GL_CXXALIAS_RPL (frexpf, float, (float x, int *expptr));
899 _GL_FUNCDECL_SYS (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
901 _GL_CXXALIAS_SYS (frexpf, float, (float x, int *expptr));
903 _GL_CXXALIASWARN (frexpf);
904 #elif defined GNULIB_POSIXCHECK
906 # if HAVE_RAW_DECL_FREXPF
907 _GL_WARN_ON_USE (frexpf, "frexpf is unportable - "
908 "use gnulib module frexpf for portability");
915 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
916 If x is zero: mantissa = x, exp = 0.
917 If x is infinite or NaN: mantissa = x, exp unspecified.
918 Store exp in *EXPPTR and return mantissa. */
921 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
922 # define frexp rpl_frexp
924 _GL_FUNCDECL_RPL (frexp, double, (double x, int *expptr) _GL_ARG_NONNULL ((2)));
925 _GL_CXXALIAS_RPL (frexp, double, (double x, int *expptr));
927 _GL_CXXALIAS_SYS (frexp, double, (double x, int *expptr));
929 _GL_CXXALIASWARN (frexp);
930 #elif defined GNULIB_POSIXCHECK
932 /* Assume frexp is always declared. */
933 _GL_WARN_ON_USE (frexp, "frexp is unportable - "
934 "use gnulib module frexp for portability");
940 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
941 If x is zero: mantissa = x, exp = 0.
942 If x is infinite or NaN: mantissa = x, exp unspecified.
943 Store exp in *EXPPTR and return mantissa. */
944 #if @GNULIB_FREXPL@ && @REPLACE_FREXPL@
945 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
947 # define frexpl rpl_frexpl
949 _GL_FUNCDECL_RPL (frexpl, long double,
950 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
951 _GL_CXXALIAS_RPL (frexpl, long double, (long double x, int *expptr));
953 # if !@HAVE_DECL_FREXPL@
954 _GL_FUNCDECL_SYS (frexpl, long double,
955 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
958 _GL_CXXALIAS_SYS (frexpl, long double, (long double x, int *expptr));
961 #if @GNULIB_FREXPL@ && !(@REPLACE_FREXPL@ && !@HAVE_DECL_FREXPL@)
962 _GL_CXXALIASWARN (frexpl);
964 #if !@GNULIB_FREXPL@ && defined GNULIB_POSIXCHECK
966 # if HAVE_RAW_DECL_FREXPL
967 _GL_WARN_ON_USE (frexpl, "frexpl is unportable - "
968 "use gnulib module frexpl for portability");
973 /* Return sqrt(x^2+y^2). */
975 # if @REPLACE_HYPOTF@
976 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
978 # define hypotf rpl_hypotf
980 _GL_FUNCDECL_RPL (hypotf, float, (float x, float y));
981 _GL_CXXALIAS_RPL (hypotf, float, (float x, float y));
984 _GL_FUNCDECL_SYS (hypotf, float, (float x, float y));
986 _GL_CXXALIAS_SYS (hypotf, float, (float x, float y));
988 _GL_CXXALIASWARN (hypotf);
989 #elif defined GNULIB_POSIXCHECK
991 # if HAVE_RAW_DECL_HYPOTF
992 _GL_WARN_ON_USE (hypotf, "hypotf is unportable - "
993 "use gnulib module hypotf for portability");
997 /* Return sqrt(x^2+y^2). */
1000 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1002 # define hypot rpl_hypot
1004 _GL_FUNCDECL_RPL (hypot, double, (double x, double y));
1005 _GL_CXXALIAS_RPL (hypot, double, (double x, double y));
1007 _GL_CXXALIAS_SYS (hypot, double, (double x, double y));
1009 _GL_CXXALIASWARN (hypot);
1010 #elif defined GNULIB_POSIXCHECK
1012 # if HAVE_RAW_DECL_HYPOT
1013 _GL_WARN_ON_USE (hypotf, "hypot has portability problems - "
1014 "use gnulib module hypot for portability");
1018 /* Return sqrt(x^2+y^2). */
1020 # if @REPLACE_HYPOTL@
1021 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1023 # define hypotl rpl_hypotl
1025 _GL_FUNCDECL_RPL (hypotl, long double, (long double x, long double y));
1026 _GL_CXXALIAS_RPL (hypotl, long double, (long double x, long double y));
1029 _GL_FUNCDECL_SYS (hypotl, long double, (long double x, long double y));
1031 _GL_CXXALIAS_SYS (hypotl, long double, (long double x, long double y));
1033 _GL_CXXALIASWARN (hypotl);
1034 #elif defined GNULIB_POSIXCHECK
1036 # if HAVE_RAW_DECL_HYPOTL
1037 _GL_WARN_ON_USE (hypotl, "hypotl is unportable - "
1038 "use gnulib module hypotl for portability");
1043 /* Return x * 2^exp. */
1047 _GL_FUNCDECL_SYS (ldexpf, float, (float x, int exp));
1049 _GL_CXXALIAS_SYS (ldexpf, float, (float x, int exp));
1050 _GL_CXXALIASWARN (ldexpf);
1051 #elif defined GNULIB_POSIXCHECK
1053 # if HAVE_RAW_DECL_LDEXPF
1054 _GL_WARN_ON_USE (ldexpf, "ldexpf is unportable - "
1055 "use gnulib module ldexpf for portability");
1059 /* Return x * 2^exp. */
1060 #if @GNULIB_LDEXPL@ && @REPLACE_LDEXPL@
1061 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1063 # define ldexpl rpl_ldexpl
1065 _GL_FUNCDECL_RPL (ldexpl, long double, (long double x, int exp));
1066 _GL_CXXALIAS_RPL (ldexpl, long double, (long double x, int exp));
1068 # if !@HAVE_DECL_LDEXPL@
1069 _GL_FUNCDECL_SYS (ldexpl, long double, (long double x, int exp));
1071 # if @GNULIB_LDEXPL@
1072 _GL_CXXALIAS_SYS (ldexpl, long double, (long double x, int exp));
1076 _GL_CXXALIASWARN (ldexpl);
1078 #if !@GNULIB_LDEXPL@ && defined GNULIB_POSIXCHECK
1080 # if HAVE_RAW_DECL_LDEXPL
1081 _GL_WARN_ON_USE (ldexpl, "ldexpl is unportable - "
1082 "use gnulib module ldexpl for portability");
1088 # if !@HAVE_DECL_LOGB@
1089 _GL_EXTERN_C double logb (double x);
1091 #elif defined GNULIB_POSIXCHECK
1093 # if HAVE_RAW_DECL_LOGB
1094 _GL_WARN_ON_USE (logb, "logb is unportable - "
1095 "use gnulib module logb for portability");
1103 _GL_FUNCDECL_SYS (logf, float, (float x));
1105 _GL_CXXALIAS_SYS (logf, float, (float x));
1106 _GL_CXXALIASWARN (logf);
1107 #elif defined GNULIB_POSIXCHECK
1109 # if HAVE_RAW_DECL_LOGF
1110 _GL_WARN_ON_USE (logf, "logf is unportable - "
1111 "use gnulib module logf for portability");
1116 # if !@HAVE_LOGL@ || !@HAVE_DECL_LOGL@
1118 _GL_FUNCDECL_SYS (logl, long double, (long double x));
1120 _GL_CXXALIAS_SYS (logl, long double, (long double x));
1121 _GL_CXXALIASWARN (logl);
1122 #elif defined GNULIB_POSIXCHECK
1124 # if HAVE_RAW_DECL_LOGL
1125 _GL_WARN_ON_USE (logl, "logl is unportable - "
1126 "use gnulib module logl for portability");
1134 _GL_FUNCDECL_SYS (log10f, float, (float x));
1136 _GL_CXXALIAS_SYS (log10f, float, (float x));
1137 _GL_CXXALIASWARN (log10f);
1138 #elif defined GNULIB_POSIXCHECK
1140 # if HAVE_RAW_DECL_LOG10F
1141 _GL_WARN_ON_USE (log10f, "log10f is unportable - "
1142 "use gnulib module log10f for portability");
1147 # if !@HAVE_LOG10L@ || !@HAVE_DECL_LOG10L@
1149 _GL_FUNCDECL_SYS (log10l, long double, (long double x));
1151 _GL_CXXALIAS_SYS (log10l, long double, (long double x));
1152 _GL_CXXALIASWARN (log10l);
1153 #elif defined GNULIB_POSIXCHECK
1155 # if HAVE_RAW_DECL_LOG10L
1156 _GL_WARN_ON_USE (log10l, "log10l is unportable - "
1157 "use gnulib module log10l for portability");
1163 # if @REPLACE_MODFF@
1164 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1166 # define modff rpl_modff
1168 _GL_FUNCDECL_RPL (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1169 _GL_CXXALIAS_RPL (modff, float, (float x, float *iptr));
1173 _GL_FUNCDECL_SYS (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1175 _GL_CXXALIAS_SYS (modff, float, (float x, float *iptr));
1177 _GL_CXXALIASWARN (modff);
1178 #elif defined GNULIB_POSIXCHECK
1180 # if HAVE_RAW_DECL_MODFF
1181 _GL_WARN_ON_USE (modff, "modff is unportable - "
1182 "use gnulib module modff for portability");
1188 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1190 # define modf rpl_modf
1192 _GL_FUNCDECL_RPL (modf, double, (double x, double *iptr) _GL_ARG_NONNULL ((2)));
1193 _GL_CXXALIAS_RPL (modf, double, (double x, double *iptr));
1195 _GL_CXXALIAS_SYS (modf, double, (double x, double *iptr));
1197 _GL_CXXALIASWARN (modf);
1198 #elif defined GNULIB_POSIXCHECK
1200 # if HAVE_RAW_DECL_MODF
1201 _GL_WARN_ON_USE (modf, "modf has portability problems - "
1202 "use gnulib module modf for portability");
1207 # if @REPLACE_MODFL@
1208 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1210 # define modfl rpl_modfl
1212 _GL_FUNCDECL_RPL (modfl, long double, (long double x, long double *iptr)
1213 _GL_ARG_NONNULL ((2)));
1214 _GL_CXXALIAS_RPL (modfl, long double, (long double x, long double *iptr));
1218 _GL_FUNCDECL_SYS (modfl, long double, (long double x, long double *iptr)
1219 _GL_ARG_NONNULL ((2)));
1221 _GL_CXXALIAS_SYS (modfl, long double, (long double x, long double *iptr));
1223 _GL_CXXALIASWARN (modfl);
1224 #elif defined GNULIB_POSIXCHECK
1226 # if HAVE_RAW_DECL_MODFL
1227 _GL_WARN_ON_USE (modfl, "modfl is unportable - "
1228 "use gnulib module modfl for portability");
1236 _GL_FUNCDECL_SYS (powf, float, (float x, float y));
1238 _GL_CXXALIAS_SYS (powf, float, (float x, float y));
1239 _GL_CXXALIASWARN (powf);
1240 #elif defined GNULIB_POSIXCHECK
1242 # if HAVE_RAW_DECL_POWF
1243 _GL_WARN_ON_USE (powf, "powf is unportable - "
1244 "use gnulib module powf for portability");
1249 #if @GNULIB_REMAINDERF@
1250 # if @REPLACE_REMAINDERF@
1251 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1253 # define remainderf rpl_remainderf
1255 _GL_FUNCDECL_RPL (remainderf, float, (float x, float y));
1256 _GL_CXXALIAS_RPL (remainderf, float, (float x, float y));
1258 # if !@HAVE_REMAINDERF@
1259 _GL_FUNCDECL_SYS (remainderf, float, (float x, float y));
1261 _GL_CXXALIAS_SYS (remainderf, float, (float x, float y));
1263 _GL_CXXALIASWARN (remainderf);
1264 #elif defined GNULIB_POSIXCHECK
1266 # if HAVE_RAW_DECL_REMAINDERF
1267 _GL_WARN_ON_USE (remainderf, "remainderf is unportable - "
1268 "use gnulib module remainderf for portability");
1272 #if @GNULIB_REMAINDER@
1273 # if @REPLACE_REMAINDER@
1274 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1276 # define remainder rpl_remainder
1278 _GL_FUNCDECL_RPL (remainder, double, (double x, double y));
1279 _GL_CXXALIAS_RPL (remainder, double, (double x, double y));
1281 # if !@HAVE_REMAINDER@ || !@HAVE_DECL_REMAINDER@
1282 _GL_FUNCDECL_SYS (remainder, double, (double x, double y));
1284 _GL_CXXALIAS_SYS (remainder, double, (double x, double y));
1286 _GL_CXXALIASWARN (remainder);
1287 #elif defined GNULIB_POSIXCHECK
1289 # if HAVE_RAW_DECL_REMAINDER
1290 _GL_WARN_ON_USE (remainder, "remainder is unportable - "
1291 "use gnulib module remainder for portability");
1295 #if @GNULIB_REMAINDERL@
1296 # if @REPLACE_REMAINDERL@
1297 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1299 # define remainderl rpl_remainderl
1301 _GL_FUNCDECL_RPL (remainderl, long double, (long double x, long double y));
1302 _GL_CXXALIAS_RPL (remainderl, long double, (long double x, long double y));
1304 # if !@HAVE_DECL_REMAINDERL@
1305 _GL_FUNCDECL_SYS (remainderl, long double, (long double x, long double y));
1307 _GL_CXXALIAS_SYS (remainderl, long double, (long double x, long double y));
1309 _GL_CXXALIASWARN (remainderl);
1310 #elif defined GNULIB_POSIXCHECK
1312 # if HAVE_RAW_DECL_REMAINDERL
1313 _GL_WARN_ON_USE (remainderl, "remainderl is unportable - "
1314 "use gnulib module remainderl for portability");
1320 # if !@HAVE_DECL_RINTF@
1321 _GL_FUNCDECL_SYS (rintf, float, (float x));
1323 _GL_CXXALIAS_SYS (rintf, float, (float x));
1324 _GL_CXXALIASWARN (rintf);
1325 #elif defined GNULIB_POSIXCHECK
1327 # if HAVE_RAW_DECL_RINTF
1328 _GL_WARN_ON_USE (rintf, "rintf is unportable - "
1329 "use gnulib module rintf for portability");
1335 _GL_FUNCDECL_SYS (rint, double, (double x));
1337 _GL_CXXALIAS_SYS (rint, double, (double x));
1338 _GL_CXXALIASWARN (rint);
1339 #elif defined GNULIB_POSIXCHECK
1341 # if HAVE_RAW_DECL_RINT
1342 _GL_WARN_ON_USE (rint, "rint is unportable - "
1343 "use gnulib module rint for portability");
1349 _GL_FUNCDECL_SYS (rintl, long double, (long double x));
1351 _GL_CXXALIAS_SYS (rintl, long double, (long double x));
1352 _GL_CXXALIASWARN (rintl);
1353 #elif defined GNULIB_POSIXCHECK
1355 # if HAVE_RAW_DECL_RINTL
1356 _GL_WARN_ON_USE (rintl, "rintl is unportable - "
1357 "use gnulib module rintl for portability");
1363 # if @REPLACE_ROUNDF@
1364 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1366 # define roundf rpl_roundf
1368 _GL_FUNCDECL_RPL (roundf, float, (float x));
1369 _GL_CXXALIAS_RPL (roundf, float, (float x));
1371 # if !@HAVE_DECL_ROUNDF@
1372 _GL_FUNCDECL_SYS (roundf, float, (float x));
1374 _GL_CXXALIAS_SYS (roundf, float, (float x));
1376 _GL_CXXALIASWARN (roundf);
1377 #elif defined GNULIB_POSIXCHECK
1379 # if HAVE_RAW_DECL_ROUNDF
1380 _GL_WARN_ON_USE (roundf, "roundf is unportable - "
1381 "use gnulib module roundf for portability");
1386 # if @REPLACE_ROUND@
1387 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1389 # define round rpl_round
1391 _GL_FUNCDECL_RPL (round, double, (double x));
1392 _GL_CXXALIAS_RPL (round, double, (double x));
1394 # if !@HAVE_DECL_ROUND@
1395 _GL_FUNCDECL_SYS (round, double, (double x));
1397 _GL_CXXALIAS_SYS (round, double, (double x));
1399 _GL_CXXALIASWARN (round);
1400 #elif defined GNULIB_POSIXCHECK
1402 # if HAVE_RAW_DECL_ROUND
1403 _GL_WARN_ON_USE (round, "round is unportable - "
1404 "use gnulib module round for portability");
1409 # if @REPLACE_ROUNDL@
1410 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1412 # define roundl rpl_roundl
1414 _GL_FUNCDECL_RPL (roundl, long double, (long double x));
1415 _GL_CXXALIAS_RPL (roundl, long double, (long double x));
1417 # if !@HAVE_DECL_ROUNDL@
1419 _GL_FUNCDECL_SYS (roundl, long double, (long double x));
1421 _GL_CXXALIAS_SYS (roundl, long double, (long double x));
1423 _GL_CXXALIASWARN (roundl);
1424 #elif defined GNULIB_POSIXCHECK
1426 # if HAVE_RAW_DECL_ROUNDL
1427 _GL_WARN_ON_USE (roundl, "roundl is unportable - "
1428 "use gnulib module roundl for portability");
1436 _GL_FUNCDECL_SYS (sinf, float, (float x));
1438 _GL_CXXALIAS_SYS (sinf, float, (float x));
1439 _GL_CXXALIASWARN (sinf);
1440 #elif defined GNULIB_POSIXCHECK
1442 # if HAVE_RAW_DECL_SINF
1443 _GL_WARN_ON_USE (sinf, "sinf is unportable - "
1444 "use gnulib module sinf for portability");
1449 # if !@HAVE_SINL@ || !@HAVE_DECL_SINL@
1451 _GL_FUNCDECL_SYS (sinl, long double, (long double x));
1453 _GL_CXXALIAS_SYS (sinl, long double, (long double x));
1454 _GL_CXXALIASWARN (sinl);
1455 #elif defined GNULIB_POSIXCHECK
1457 # if HAVE_RAW_DECL_SINL
1458 _GL_WARN_ON_USE (sinl, "sinl is unportable - "
1459 "use gnulib module sinl for portability");
1467 _GL_FUNCDECL_SYS (sinhf, float, (float x));
1469 _GL_CXXALIAS_SYS (sinhf, float, (float x));
1470 _GL_CXXALIASWARN (sinhf);
1471 #elif defined GNULIB_POSIXCHECK
1473 # if HAVE_RAW_DECL_SINHF
1474 _GL_WARN_ON_USE (sinhf, "sinhf is unportable - "
1475 "use gnulib module sinhf for portability");
1483 _GL_FUNCDECL_SYS (sqrtf, float, (float x));
1485 _GL_CXXALIAS_SYS (sqrtf, float, (float x));
1486 _GL_CXXALIASWARN (sqrtf);
1487 #elif defined GNULIB_POSIXCHECK
1489 # if HAVE_RAW_DECL_SQRTF
1490 _GL_WARN_ON_USE (sqrtf, "sqrtf is unportable - "
1491 "use gnulib module sqrtf for portability");
1496 # if !@HAVE_SQRTL@ || !@HAVE_DECL_SQRTL@
1498 _GL_FUNCDECL_SYS (sqrtl, long double, (long double x));
1500 _GL_CXXALIAS_SYS (sqrtl, long double, (long double x));
1501 _GL_CXXALIASWARN (sqrtl);
1502 #elif defined GNULIB_POSIXCHECK
1504 # if HAVE_RAW_DECL_SQRTL
1505 _GL_WARN_ON_USE (sqrtl, "sqrtl is unportable - "
1506 "use gnulib module sqrtl for portability");
1514 _GL_FUNCDECL_SYS (tanf, float, (float x));
1516 _GL_CXXALIAS_SYS (tanf, float, (float x));
1517 _GL_CXXALIASWARN (tanf);
1518 #elif defined GNULIB_POSIXCHECK
1520 # if HAVE_RAW_DECL_TANF
1521 _GL_WARN_ON_USE (tanf, "tanf is unportable - "
1522 "use gnulib module tanf for portability");
1527 # if !@HAVE_TANL@ || !@HAVE_DECL_TANL@
1529 _GL_FUNCDECL_SYS (tanl, long double, (long double x));
1531 _GL_CXXALIAS_SYS (tanl, long double, (long double x));
1532 _GL_CXXALIASWARN (tanl);
1533 #elif defined GNULIB_POSIXCHECK
1535 # if HAVE_RAW_DECL_TANL
1536 _GL_WARN_ON_USE (tanl, "tanl is unportable - "
1537 "use gnulib module tanl for portability");
1545 _GL_FUNCDECL_SYS (tanhf, float, (float x));
1547 _GL_CXXALIAS_SYS (tanhf, float, (float x));
1548 _GL_CXXALIASWARN (tanhf);
1549 #elif defined GNULIB_POSIXCHECK
1551 # if HAVE_RAW_DECL_TANHF
1552 _GL_WARN_ON_USE (tanhf, "tanhf is unportable - "
1553 "use gnulib module tanhf for portability");
1559 # if @REPLACE_TRUNCF@
1560 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1561 # define truncf rpl_truncf
1563 _GL_FUNCDECL_RPL (truncf, float, (float x));
1564 _GL_CXXALIAS_RPL (truncf, float, (float x));
1566 # if !@HAVE_DECL_TRUNCF@
1567 _GL_FUNCDECL_SYS (truncf, float, (float x));
1569 _GL_CXXALIAS_SYS (truncf, float, (float x));
1571 _GL_CXXALIASWARN (truncf);
1572 #elif defined GNULIB_POSIXCHECK
1574 # if HAVE_RAW_DECL_TRUNCF
1575 _GL_WARN_ON_USE (truncf, "truncf is unportable - "
1576 "use gnulib module truncf for portability");
1581 # if @REPLACE_TRUNC@
1582 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1583 # define trunc rpl_trunc
1585 _GL_FUNCDECL_RPL (trunc, double, (double x));
1586 _GL_CXXALIAS_RPL (trunc, double, (double x));
1588 # if !@HAVE_DECL_TRUNC@
1589 _GL_FUNCDECL_SYS (trunc, double, (double x));
1591 _GL_CXXALIAS_SYS (trunc, double, (double x));
1593 _GL_CXXALIASWARN (trunc);
1594 #elif defined GNULIB_POSIXCHECK
1596 # if HAVE_RAW_DECL_TRUNC
1597 _GL_WARN_ON_USE (trunc, "trunc is unportable - "
1598 "use gnulib module trunc for portability");
1603 # if @REPLACE_TRUNCL@
1604 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1606 # define truncl rpl_truncl
1608 _GL_FUNCDECL_RPL (truncl, long double, (long double x));
1609 _GL_CXXALIAS_RPL (truncl, long double, (long double x));
1611 # if !@HAVE_DECL_TRUNCL@
1612 _GL_FUNCDECL_SYS (truncl, long double, (long double x));
1614 _GL_CXXALIAS_SYS (truncl, long double, (long double x));
1616 _GL_CXXALIASWARN (truncl);
1617 #elif defined GNULIB_POSIXCHECK
1619 # if HAVE_RAW_DECL_TRUNCL
1620 _GL_WARN_ON_USE (truncl, "truncl is unportable - "
1621 "use gnulib module truncl for portability");
1626 /* Definitions of function-like macros come here, after the function
1630 #if @GNULIB_ISFINITE@
1631 # if @REPLACE_ISFINITE@
1632 _GL_EXTERN_C int gl_isfinitef (float x);
1633 _GL_EXTERN_C int gl_isfinited (double x);
1634 _GL_EXTERN_C int gl_isfinitel (long double x);
1636 # define isfinite(x) \
1637 (sizeof (x) == sizeof (long double) ? gl_isfinitel (x) : \
1638 sizeof (x) == sizeof (double) ? gl_isfinited (x) : \
1643 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isfinite)
1645 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isfinite)
1648 #elif defined GNULIB_POSIXCHECK
1649 # if defined isfinite
1650 _GL_WARN_REAL_FLOATING_DECL (isfinite);
1652 # define isfinite(x) _GL_WARN_REAL_FLOATING_IMPL (isfinite, x)
1658 # if @REPLACE_ISINF@
1659 _GL_EXTERN_C int gl_isinff (float x);
1660 _GL_EXTERN_C int gl_isinfd (double x);
1661 _GL_EXTERN_C int gl_isinfl (long double x);
1664 (sizeof (x) == sizeof (long double) ? gl_isinfl (x) : \
1665 sizeof (x) == sizeof (double) ? gl_isinfd (x) : \
1670 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isinf)
1672 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isinf)
1675 #elif defined GNULIB_POSIXCHECK
1677 _GL_WARN_REAL_FLOATING_DECL (isinf);
1679 # define isinf(x) _GL_WARN_REAL_FLOATING_IMPL (isinf, x)
1685 /* Test for NaN for 'float' numbers. */
1687 /* The original <math.h> included above provides a declaration of isnan macro
1688 or (older) isnanf function. */
1690 /* GCC 4.0 and newer provides three built-ins for isnan. */
1692 # define isnanf(x) __builtin_isnanf ((float)(x))
1693 # elif defined isnan
1695 # define isnanf(x) isnan ((float)(x))
1698 /* Test whether X is a NaN. */
1700 # define isnanf rpl_isnanf
1701 _GL_EXTERN_C int isnanf (float x);
1706 /* Test for NaN for 'double' numbers.
1707 This function is a gnulib extension, unlike isnan() which applied only
1708 to 'double' numbers earlier but now is a type-generic macro. */
1710 /* The original <math.h> included above provides a declaration of isnan
1713 /* GCC 4.0 and newer provides three built-ins for isnan. */
1715 # define isnand(x) __builtin_isnan ((double)(x))
1718 # define isnand(x) isnan ((double)(x))
1721 /* Test whether X is a NaN. */
1723 # define isnand rpl_isnand
1724 _GL_EXTERN_C int isnand (double x);
1729 /* Test for NaN for 'long double' numbers. */
1731 /* The original <math.h> included above provides a declaration of isnan
1732 macro or (older) isnanl function. */
1734 /* GCC 4.0 and newer provides three built-ins for isnan. */
1736 # define isnanl(x) __builtin_isnanl ((long double)(x))
1737 # elif defined isnan
1739 # define isnanl(x) isnan ((long double)(x))
1742 /* Test whether X is a NaN. */
1744 # define isnanl rpl_isnanl
1745 _GL_EXTERN_C int isnanl (long double x) _GL_ATTRIBUTE_CONST;
1749 /* This must come *after* the snippets for GNULIB_ISNANF and GNULIB_ISNANL! */
1751 # if @REPLACE_ISNAN@
1752 /* We can't just use the isnanf macro (e.g.) as exposed by
1753 isnanf.h (e.g.) here, because those may end up being macros
1754 that recursively expand back to isnan. So use the gnulib
1755 replacements for them directly. */
1756 # if @HAVE_ISNANF@ && __GNUC__ >= 4
1757 # define gl_isnan_f(x) __builtin_isnanf ((float)(x))
1759 _GL_EXTERN_C int rpl_isnanf (float x);
1760 # define gl_isnan_f(x) rpl_isnanf (x)
1762 # if @HAVE_ISNAND@ && __GNUC__ >= 4
1763 # define gl_isnan_d(x) __builtin_isnan ((double)(x))
1765 _GL_EXTERN_C int rpl_isnand (double x);
1766 # define gl_isnan_d(x) rpl_isnand (x)
1768 # if @HAVE_ISNANL@ && __GNUC__ >= 4
1769 # define gl_isnan_l(x) __builtin_isnanl ((long double)(x))
1771 _GL_EXTERN_C int rpl_isnanl (long double x) _GL_ATTRIBUTE_CONST;
1772 # define gl_isnan_l(x) rpl_isnanl (x)
1776 (sizeof (x) == sizeof (long double) ? gl_isnan_l (x) : \
1777 sizeof (x) == sizeof (double) ? gl_isnan_d (x) : \
1779 # elif __GNUC__ >= 4
1782 (sizeof (x) == sizeof (long double) ? __builtin_isnanl ((long double)(x)) : \
1783 sizeof (x) == sizeof (double) ? __builtin_isnan ((double)(x)) : \
1784 __builtin_isnanf ((float)(x)))
1788 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isnan)
1790 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isnan)
1793 /* Ensure isnan is a macro. */
1795 # define isnan isnan
1798 #elif defined GNULIB_POSIXCHECK
1800 _GL_WARN_REAL_FLOATING_DECL (isnan);
1802 # define isnan(x) _GL_WARN_REAL_FLOATING_IMPL (isnan, x)
1807 #if @GNULIB_SIGNBIT@
1808 # if @REPLACE_SIGNBIT_USING_GCC@
1810 /* GCC 4.0 and newer provides three built-ins for signbit. */
1811 # define signbit(x) \
1812 (sizeof (x) == sizeof (long double) ? __builtin_signbitl (x) : \
1813 sizeof (x) == sizeof (double) ? __builtin_signbit (x) : \
1814 __builtin_signbitf (x))
1816 # if @REPLACE_SIGNBIT@
1818 _GL_EXTERN_C int gl_signbitf (float arg);
1819 _GL_EXTERN_C int gl_signbitd (double arg);
1820 _GL_EXTERN_C int gl_signbitl (long double arg);
1821 # if __GNUC__ >= 2 && !defined __STRICT_ANSI__
1822 # define _GL_NUM_UINT_WORDS(type) \
1823 ((sizeof (type) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
1824 # if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT && !defined gl_signbitf
1825 # define gl_signbitf_OPTIMIZED_MACRO
1826 # define gl_signbitf(arg) \
1827 ({ union { float _value; \
1828 unsigned int _word[_GL_NUM_UINT_WORDS (float)]; \
1830 _m._value = (arg); \
1831 (_m._word[FLT_SIGNBIT_WORD] >> FLT_SIGNBIT_BIT) & 1; \
1834 # if defined DBL_SIGNBIT_WORD && defined DBL_SIGNBIT_BIT && !defined gl_signbitd
1835 # define gl_signbitd_OPTIMIZED_MACRO
1836 # define gl_signbitd(arg) \
1837 ({ union { double _value; \
1838 unsigned int _word[_GL_NUM_UINT_WORDS (double)]; \
1840 _m._value = (arg); \
1841 (_m._word[DBL_SIGNBIT_WORD] >> DBL_SIGNBIT_BIT) & 1; \
1844 # if defined LDBL_SIGNBIT_WORD && defined LDBL_SIGNBIT_BIT && !defined gl_signbitl
1845 # define gl_signbitl_OPTIMIZED_MACRO
1846 # define gl_signbitl(arg) \
1847 ({ union { long double _value; \
1848 unsigned int _word[_GL_NUM_UINT_WORDS (long double)]; \
1850 _m._value = (arg); \
1851 (_m._word[LDBL_SIGNBIT_WORD] >> LDBL_SIGNBIT_BIT) & 1; \
1855 # define signbit(x) \
1856 (sizeof (x) == sizeof (long double) ? gl_signbitl (x) : \
1857 sizeof (x) == sizeof (double) ? gl_signbitd (x) : \
1862 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (signbit)
1864 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (signbit)
1867 #elif defined GNULIB_POSIXCHECK
1868 # if defined signbit
1869 _GL_WARN_REAL_FLOATING_DECL (signbit);
1871 # define signbit(x) _GL_WARN_REAL_FLOATING_IMPL (signbit, x)
1876 #endif /* _@GUARD_PREFIX@_MATH_H */
1877 #endif /* _@GUARD_PREFIX@_MATH_H */