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_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");
537 _GL_FUNCDECL_SYS (expm1f, float, (float x));
539 _GL_CXXALIAS_SYS (expm1f, float, (float x));
540 _GL_CXXALIASWARN (expm1f);
541 #elif defined GNULIB_POSIXCHECK
543 # if HAVE_RAW_DECL_EXPM1F
544 _GL_WARN_ON_USE (expm1f, "expm1f is unportable - "
545 "use gnulib module expm1f for portability");
551 _GL_FUNCDECL_SYS (expm1, double, (double x));
553 _GL_CXXALIAS_SYS (expm1, double, (double x));
554 _GL_CXXALIASWARN (expm1);
555 #elif defined GNULIB_POSIXCHECK
557 # if HAVE_RAW_DECL_EXPM1
558 _GL_WARN_ON_USE (expm1, "expm1 is unportable - "
559 "use gnulib module expm1 for portability");
565 _GL_FUNCDECL_SYS (expm1l, long double, (long double x));
567 _GL_CXXALIAS_SYS (expm1l, long double, (long double x));
568 _GL_CXXALIASWARN (expm1l);
569 #elif defined GNULIB_POSIXCHECK
571 # if HAVE_RAW_DECL_EXPM1L
572 _GL_WARN_ON_USE (expm1l, "expm1l is unportable - "
573 "use gnulib module expm1l for portability");
581 _GL_FUNCDECL_SYS (fabsf, float, (float x));
583 _GL_CXXALIAS_SYS (fabsf, float, (float x));
584 _GL_CXXALIASWARN (fabsf);
585 #elif defined GNULIB_POSIXCHECK
587 # if HAVE_RAW_DECL_FABSF
588 _GL_WARN_ON_USE (fabsf, "fabsf is unportable - "
589 "use gnulib module fabsf for portability");
595 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
597 # define fabsl rpl_fabsl
599 _GL_FUNCDECL_RPL (fabsl, long double, (long double x));
600 _GL_CXXALIAS_RPL (fabsl, long double, (long double x));
604 _GL_FUNCDECL_SYS (fabsl, long double, (long double x));
606 _GL_CXXALIAS_SYS (fabsl, long double, (long double x));
608 _GL_CXXALIASWARN (fabsl);
609 #elif defined GNULIB_POSIXCHECK
611 # if HAVE_RAW_DECL_FABSL
612 _GL_WARN_ON_USE (fabsl, "fabsl is unportable - "
613 "use gnulib module fabsl for portability");
619 # if @REPLACE_FLOORF@
620 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
622 # define floorf rpl_floorf
624 _GL_FUNCDECL_RPL (floorf, float, (float x));
625 _GL_CXXALIAS_RPL (floorf, float, (float x));
627 # if !@HAVE_DECL_FLOORF@
629 _GL_FUNCDECL_SYS (floorf, float, (float x));
631 _GL_CXXALIAS_SYS (floorf, float, (float x));
633 _GL_CXXALIASWARN (floorf);
634 #elif defined GNULIB_POSIXCHECK
636 # if HAVE_RAW_DECL_FLOORF
637 _GL_WARN_ON_USE (floorf, "floorf is unportable - "
638 "use gnulib module floorf for portability");
644 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
645 # define floor rpl_floor
647 _GL_FUNCDECL_RPL (floor, double, (double x));
648 _GL_CXXALIAS_RPL (floor, double, (double x));
650 _GL_CXXALIAS_SYS (floor, double, (double x));
652 _GL_CXXALIASWARN (floor);
656 # if @REPLACE_FLOORL@
657 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
659 # define floorl rpl_floorl
661 _GL_FUNCDECL_RPL (floorl, long double, (long double x));
662 _GL_CXXALIAS_RPL (floorl, long double, (long double x));
664 # if !@HAVE_DECL_FLOORL@
666 _GL_FUNCDECL_SYS (floorl, long double, (long double x));
668 _GL_CXXALIAS_SYS (floorl, long double, (long double x));
670 _GL_CXXALIASWARN (floorl);
671 #elif defined GNULIB_POSIXCHECK
673 # if HAVE_RAW_DECL_FLOORL
674 _GL_WARN_ON_USE (floorl, "floorl is unportable - "
675 "use gnulib module floorl for portability");
682 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
684 # define fmaf rpl_fmaf
686 _GL_FUNCDECL_RPL (fmaf, float, (float x, float y, float z));
687 _GL_CXXALIAS_RPL (fmaf, float, (float x, float y, float z));
690 _GL_FUNCDECL_SYS (fmaf, float, (float x, float y, float z));
692 _GL_CXXALIAS_SYS (fmaf, float, (float x, float y, float z));
694 _GL_CXXALIASWARN (fmaf);
695 #elif defined GNULIB_POSIXCHECK
697 # if HAVE_RAW_DECL_FMAF
698 _GL_WARN_ON_USE (fmaf, "fmaf is unportable - "
699 "use gnulib module fmaf for portability");
705 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
709 _GL_FUNCDECL_RPL (fma, double, (double x, double y, double z));
710 _GL_CXXALIAS_RPL (fma, double, (double x, double y, double z));
713 _GL_FUNCDECL_SYS (fma, double, (double x, double y, double z));
715 _GL_CXXALIAS_SYS (fma, double, (double x, double y, double z));
717 _GL_CXXALIASWARN (fma);
718 #elif defined GNULIB_POSIXCHECK
720 # if HAVE_RAW_DECL_FMA
721 _GL_WARN_ON_USE (fma, "fma is unportable - "
722 "use gnulib module fma for portability");
728 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
730 # define fmal rpl_fmal
732 _GL_FUNCDECL_RPL (fmal, long double,
733 (long double x, long double y, long double z));
734 _GL_CXXALIAS_RPL (fmal, long double,
735 (long double x, long double y, long double z));
738 _GL_FUNCDECL_SYS (fmal, long double,
739 (long double x, long double y, long double z));
741 _GL_CXXALIAS_SYS (fmal, long double,
742 (long double x, long double y, long double z));
744 _GL_CXXALIASWARN (fmal);
745 #elif defined GNULIB_POSIXCHECK
747 # if HAVE_RAW_DECL_FMAL
748 _GL_WARN_ON_USE (fmal, "fmal is unportable - "
749 "use gnulib module fmal for portability");
756 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
758 # define fmodf rpl_fmodf
760 _GL_FUNCDECL_RPL (fmodf, float, (float x, float y));
761 _GL_CXXALIAS_RPL (fmodf, float, (float x, float y));
765 _GL_FUNCDECL_SYS (fmodf, float, (float x, float y));
767 _GL_CXXALIAS_SYS (fmodf, float, (float x, float y));
769 _GL_CXXALIASWARN (fmodf);
770 #elif defined GNULIB_POSIXCHECK
772 # if HAVE_RAW_DECL_FMODF
773 _GL_WARN_ON_USE (fmodf, "fmodf is unportable - "
774 "use gnulib module fmodf for portability");
780 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
782 # define fmod rpl_fmod
784 _GL_FUNCDECL_RPL (fmod, double, (double x, double y));
785 _GL_CXXALIAS_RPL (fmod, double, (double x, double y));
787 _GL_CXXALIAS_SYS (fmod, double, (double x, double y));
789 _GL_CXXALIASWARN (fmod);
790 #elif defined GNULIB_POSIXCHECK
792 # if HAVE_RAW_DECL_FMOD
793 _GL_WARN_ON_USE (fmod, "fmod has portability problems - "
794 "use gnulib module fmod for portability");
800 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
802 # define fmodl rpl_fmodl
804 _GL_FUNCDECL_RPL (fmodl, long double, (long double x, long double y));
805 _GL_CXXALIAS_RPL (fmodl, long double, (long double x, long double y));
809 _GL_FUNCDECL_SYS (fmodl, long double, (long double x, long double y));
811 _GL_CXXALIAS_SYS (fmodl, long double, (long double x, long double y));
813 _GL_CXXALIASWARN (fmodl);
814 #elif defined GNULIB_POSIXCHECK
816 # if HAVE_RAW_DECL_FMODL
817 _GL_WARN_ON_USE (fmodl, "fmodl is unportable - "
818 "use gnulib module fmodl for portability");
826 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
827 If x is zero: mantissa = x, exp = 0.
828 If x is infinite or NaN: mantissa = x, exp unspecified.
829 Store exp in *EXPPTR and return mantissa. */
831 # if @REPLACE_FREXPF@
832 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
834 # define frexpf rpl_frexpf
836 _GL_FUNCDECL_RPL (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
837 _GL_CXXALIAS_RPL (frexpf, float, (float x, int *expptr));
841 _GL_FUNCDECL_SYS (frexpf, float, (float x, int *expptr) _GL_ARG_NONNULL ((2)));
843 _GL_CXXALIAS_SYS (frexpf, float, (float x, int *expptr));
845 _GL_CXXALIASWARN (frexpf);
846 #elif defined GNULIB_POSIXCHECK
848 # if HAVE_RAW_DECL_FREXPF
849 _GL_WARN_ON_USE (frexpf, "frexpf is unportable - "
850 "use gnulib module frexpf for portability");
857 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
858 If x is zero: mantissa = x, exp = 0.
859 If x is infinite or NaN: mantissa = x, exp unspecified.
860 Store exp in *EXPPTR and return mantissa. */
863 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
864 # define frexp rpl_frexp
866 _GL_FUNCDECL_RPL (frexp, double, (double x, int *expptr) _GL_ARG_NONNULL ((2)));
867 _GL_CXXALIAS_RPL (frexp, double, (double x, int *expptr));
869 _GL_CXXALIAS_SYS (frexp, double, (double x, int *expptr));
871 _GL_CXXALIASWARN (frexp);
872 #elif defined GNULIB_POSIXCHECK
874 /* Assume frexp is always declared. */
875 _GL_WARN_ON_USE (frexp, "frexp is unportable - "
876 "use gnulib module frexp for portability");
882 If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
883 If x is zero: mantissa = x, exp = 0.
884 If x is infinite or NaN: mantissa = x, exp unspecified.
885 Store exp in *EXPPTR and return mantissa. */
886 #if @GNULIB_FREXPL@ && @REPLACE_FREXPL@
887 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
889 # define frexpl rpl_frexpl
891 _GL_FUNCDECL_RPL (frexpl, long double,
892 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
893 _GL_CXXALIAS_RPL (frexpl, long double, (long double x, int *expptr));
895 # if !@HAVE_DECL_FREXPL@
896 _GL_FUNCDECL_SYS (frexpl, long double,
897 (long double x, int *expptr) _GL_ARG_NONNULL ((2)));
900 _GL_CXXALIAS_SYS (frexpl, long double, (long double x, int *expptr));
903 #if @GNULIB_FREXPL@ && !(@REPLACE_FREXPL@ && !@HAVE_DECL_FREXPL@)
904 _GL_CXXALIASWARN (frexpl);
906 #if !@GNULIB_FREXPL@ && defined GNULIB_POSIXCHECK
908 # if HAVE_RAW_DECL_FREXPL
909 _GL_WARN_ON_USE (frexpl, "frexpl is unportable - "
910 "use gnulib module frexpl for portability");
915 /* Return sqrt(x^2+y^2). */
917 # if @REPLACE_HYPOTF@
918 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
920 # define hypotf rpl_hypotf
922 _GL_FUNCDECL_RPL (hypotf, float, (float x, float y));
923 _GL_CXXALIAS_RPL (hypotf, float, (float x, float y));
926 _GL_FUNCDECL_SYS (hypotf, float, (float x, float y));
928 _GL_CXXALIAS_SYS (hypotf, float, (float x, float y));
930 _GL_CXXALIASWARN (hypotf);
931 #elif defined GNULIB_POSIXCHECK
933 # if HAVE_RAW_DECL_HYPOTF
934 _GL_WARN_ON_USE (hypotf, "hypotf is unportable - "
935 "use gnulib module hypotf for portability");
939 /* Return sqrt(x^2+y^2). */
942 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
944 # define hypot rpl_hypot
946 _GL_FUNCDECL_RPL (hypot, double, (double x, double y));
947 _GL_CXXALIAS_RPL (hypot, double, (double x, double y));
949 _GL_CXXALIAS_SYS (hypot, double, (double x, double y));
951 _GL_CXXALIASWARN (hypot);
952 #elif defined GNULIB_POSIXCHECK
954 # if HAVE_RAW_DECL_HYPOT
955 _GL_WARN_ON_USE (hypotf, "hypot has portability problems - "
956 "use gnulib module hypot for portability");
960 /* Return sqrt(x^2+y^2). */
962 # if @REPLACE_HYPOTL@
963 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
965 # define hypotl rpl_hypotl
967 _GL_FUNCDECL_RPL (hypotl, long double, (long double x, long double y));
968 _GL_CXXALIAS_RPL (hypotl, long double, (long double x, long double y));
971 _GL_FUNCDECL_SYS (hypotl, long double, (long double x, long double y));
973 _GL_CXXALIAS_SYS (hypotl, long double, (long double x, long double y));
975 _GL_CXXALIASWARN (hypotl);
976 #elif defined GNULIB_POSIXCHECK
978 # if HAVE_RAW_DECL_HYPOTL
979 _GL_WARN_ON_USE (hypotl, "hypotl is unportable - "
980 "use gnulib module hypotl for portability");
985 /* Return x * 2^exp. */
989 _GL_FUNCDECL_SYS (ldexpf, float, (float x, int exp));
991 _GL_CXXALIAS_SYS (ldexpf, float, (float x, int exp));
992 _GL_CXXALIASWARN (ldexpf);
993 #elif defined GNULIB_POSIXCHECK
995 # if HAVE_RAW_DECL_LDEXPF
996 _GL_WARN_ON_USE (ldexpf, "ldexpf is unportable - "
997 "use gnulib module ldexpf for portability");
1001 /* Return x * 2^exp. */
1002 #if @GNULIB_LDEXPL@ && @REPLACE_LDEXPL@
1003 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1005 # define ldexpl rpl_ldexpl
1007 _GL_FUNCDECL_RPL (ldexpl, long double, (long double x, int exp));
1008 _GL_CXXALIAS_RPL (ldexpl, long double, (long double x, int exp));
1010 # if !@HAVE_DECL_LDEXPL@
1011 _GL_FUNCDECL_SYS (ldexpl, long double, (long double x, int exp));
1013 # if @GNULIB_LDEXPL@
1014 _GL_CXXALIAS_SYS (ldexpl, long double, (long double x, int exp));
1018 _GL_CXXALIASWARN (ldexpl);
1020 #if !@GNULIB_LDEXPL@ && defined GNULIB_POSIXCHECK
1022 # if HAVE_RAW_DECL_LDEXPL
1023 _GL_WARN_ON_USE (ldexpl, "ldexpl is unportable - "
1024 "use gnulib module ldexpl for portability");
1030 # if !@HAVE_DECL_LOGB@
1031 _GL_EXTERN_C double logb (double x);
1033 #elif defined GNULIB_POSIXCHECK
1035 # if HAVE_RAW_DECL_LOGB
1036 _GL_WARN_ON_USE (logb, "logb is unportable - "
1037 "use gnulib module logb for portability");
1045 _GL_FUNCDECL_SYS (logf, float, (float x));
1047 _GL_CXXALIAS_SYS (logf, float, (float x));
1048 _GL_CXXALIASWARN (logf);
1049 #elif defined GNULIB_POSIXCHECK
1051 # if HAVE_RAW_DECL_LOGF
1052 _GL_WARN_ON_USE (logf, "logf is unportable - "
1053 "use gnulib module logf for portability");
1058 # if !@HAVE_LOGL@ || !@HAVE_DECL_LOGL@
1060 _GL_FUNCDECL_SYS (logl, long double, (long double x));
1062 _GL_CXXALIAS_SYS (logl, long double, (long double x));
1063 _GL_CXXALIASWARN (logl);
1064 #elif defined GNULIB_POSIXCHECK
1066 # if HAVE_RAW_DECL_LOGL
1067 _GL_WARN_ON_USE (logl, "logl is unportable - "
1068 "use gnulib module logl for portability");
1076 _GL_FUNCDECL_SYS (log10f, float, (float x));
1078 _GL_CXXALIAS_SYS (log10f, float, (float x));
1079 _GL_CXXALIASWARN (log10f);
1080 #elif defined GNULIB_POSIXCHECK
1082 # if HAVE_RAW_DECL_LOG10F
1083 _GL_WARN_ON_USE (log10f, "log10f is unportable - "
1084 "use gnulib module log10f for portability");
1089 # if !@HAVE_LOG10L@ || !@HAVE_DECL_LOG10L@
1091 _GL_FUNCDECL_SYS (log10l, long double, (long double x));
1093 _GL_CXXALIAS_SYS (log10l, long double, (long double x));
1094 _GL_CXXALIASWARN (log10l);
1095 #elif defined GNULIB_POSIXCHECK
1097 # if HAVE_RAW_DECL_LOG10L
1098 _GL_WARN_ON_USE (log10l, "log10l is unportable - "
1099 "use gnulib module log10l for portability");
1105 # if @REPLACE_MODFF@
1106 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1108 # define modff rpl_modff
1110 _GL_FUNCDECL_RPL (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1111 _GL_CXXALIAS_RPL (modff, float, (float x, float *iptr));
1115 _GL_FUNCDECL_SYS (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
1117 _GL_CXXALIAS_SYS (modff, float, (float x, float *iptr));
1119 _GL_CXXALIASWARN (modff);
1120 #elif defined GNULIB_POSIXCHECK
1122 # if HAVE_RAW_DECL_MODFF
1123 _GL_WARN_ON_USE (modff, "modff is unportable - "
1124 "use gnulib module modff for portability");
1130 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1132 # define modf rpl_modf
1134 _GL_FUNCDECL_RPL (modf, double, (double x, double *iptr) _GL_ARG_NONNULL ((2)));
1135 _GL_CXXALIAS_RPL (modf, double, (double x, double *iptr));
1137 _GL_CXXALIAS_SYS (modf, double, (double x, double *iptr));
1139 _GL_CXXALIASWARN (modf);
1140 #elif defined GNULIB_POSIXCHECK
1142 # if HAVE_RAW_DECL_MODF
1143 _GL_WARN_ON_USE (modf, "modf has portability problems - "
1144 "use gnulib module modf for portability");
1149 # if @REPLACE_MODFL@
1150 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1152 # define modfl rpl_modfl
1154 _GL_FUNCDECL_RPL (modfl, long double, (long double x, long double *iptr)
1155 _GL_ARG_NONNULL ((2)));
1156 _GL_CXXALIAS_RPL (modfl, long double, (long double x, long double *iptr));
1160 _GL_FUNCDECL_SYS (modfl, long double, (long double x, long double *iptr)
1161 _GL_ARG_NONNULL ((2)));
1163 _GL_CXXALIAS_SYS (modfl, long double, (long double x, long double *iptr));
1165 _GL_CXXALIASWARN (modfl);
1166 #elif defined GNULIB_POSIXCHECK
1168 # if HAVE_RAW_DECL_MODFL
1169 _GL_WARN_ON_USE (modfl, "modfl is unportable - "
1170 "use gnulib module modfl for portability");
1178 _GL_FUNCDECL_SYS (powf, float, (float x, float y));
1180 _GL_CXXALIAS_SYS (powf, float, (float x, float y));
1181 _GL_CXXALIASWARN (powf);
1182 #elif defined GNULIB_POSIXCHECK
1184 # if HAVE_RAW_DECL_POWF
1185 _GL_WARN_ON_USE (powf, "powf is unportable - "
1186 "use gnulib module powf for portability");
1191 #if @GNULIB_REMAINDERF@
1192 # if @REPLACE_REMAINDERF@
1193 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1195 # define remainderf rpl_remainderf
1197 _GL_FUNCDECL_RPL (remainderf, float, (float x, float y));
1198 _GL_CXXALIAS_RPL (remainderf, float, (float x, float y));
1200 # if !@HAVE_REMAINDERF@
1201 _GL_FUNCDECL_SYS (remainderf, float, (float x, float y));
1203 _GL_CXXALIAS_SYS (remainderf, float, (float x, float y));
1205 _GL_CXXALIASWARN (remainderf);
1206 #elif defined GNULIB_POSIXCHECK
1208 # if HAVE_RAW_DECL_REMAINDERF
1209 _GL_WARN_ON_USE (remainderf, "remainderf is unportable - "
1210 "use gnulib module remainderf for portability");
1214 #if @GNULIB_REMAINDER@
1215 # if @REPLACE_REMAINDER@
1216 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1218 # define remainder rpl_remainder
1220 _GL_FUNCDECL_RPL (remainder, double, (double x, double y));
1221 _GL_CXXALIAS_RPL (remainder, double, (double x, double y));
1223 # if !@HAVE_REMAINDER@ || !@HAVE_DECL_REMAINDER@
1224 _GL_FUNCDECL_SYS (remainder, double, (double x, double y));
1226 _GL_CXXALIAS_SYS (remainder, double, (double x, double y));
1228 _GL_CXXALIASWARN (remainder);
1229 #elif defined GNULIB_POSIXCHECK
1231 # if HAVE_RAW_DECL_REMAINDER
1232 _GL_WARN_ON_USE (remainder, "remainder is unportable - "
1233 "use gnulib module remainder for portability");
1237 #if @GNULIB_REMAINDERL@
1238 # if @REPLACE_REMAINDERL@
1239 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1241 # define remainderl rpl_remainderl
1243 _GL_FUNCDECL_RPL (remainderl, long double, (long double x, long double y));
1244 _GL_CXXALIAS_RPL (remainderl, long double, (long double x, long double y));
1246 # if !@HAVE_REMAINDERL@
1247 _GL_FUNCDECL_SYS (remainderl, long double, (long double x, long double y));
1249 _GL_CXXALIAS_SYS (remainderl, long double, (long double x, long double y));
1251 _GL_CXXALIASWARN (remainderl);
1252 #elif defined GNULIB_POSIXCHECK
1254 # if HAVE_RAW_DECL_REMAINDERL
1255 _GL_WARN_ON_USE (remainderl, "remainderl is unportable - "
1256 "use gnulib module remainderl for portability");
1263 _GL_FUNCDECL_SYS (rintf, float, (float x));
1265 _GL_CXXALIAS_SYS (rintf, float, (float x));
1266 _GL_CXXALIASWARN (rintf);
1267 #elif defined GNULIB_POSIXCHECK
1269 # if HAVE_RAW_DECL_RINTF
1270 _GL_WARN_ON_USE (rintf, "rintf is unportable - "
1271 "use gnulib module rintf for portability");
1277 _GL_FUNCDECL_SYS (rint, double, (double x));
1279 _GL_CXXALIAS_SYS (rint, double, (double x));
1280 _GL_CXXALIASWARN (rint);
1281 #elif defined GNULIB_POSIXCHECK
1283 # if HAVE_RAW_DECL_RINT
1284 _GL_WARN_ON_USE (rint, "rint is unportable - "
1285 "use gnulib module rint for portability");
1291 _GL_FUNCDECL_SYS (rintl, long double, (long double x));
1293 _GL_CXXALIAS_SYS (rintl, long double, (long double x));
1294 _GL_CXXALIASWARN (rintl);
1295 #elif defined GNULIB_POSIXCHECK
1297 # if HAVE_RAW_DECL_RINTL
1298 _GL_WARN_ON_USE (rintl, "rintl is unportable - "
1299 "use gnulib module rintl for portability");
1305 # if @REPLACE_ROUNDF@
1306 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1308 # define roundf rpl_roundf
1310 _GL_FUNCDECL_RPL (roundf, float, (float x));
1311 _GL_CXXALIAS_RPL (roundf, float, (float x));
1313 # if !@HAVE_DECL_ROUNDF@
1314 _GL_FUNCDECL_SYS (roundf, float, (float x));
1316 _GL_CXXALIAS_SYS (roundf, float, (float x));
1318 _GL_CXXALIASWARN (roundf);
1319 #elif defined GNULIB_POSIXCHECK
1321 # if HAVE_RAW_DECL_ROUNDF
1322 _GL_WARN_ON_USE (roundf, "roundf is unportable - "
1323 "use gnulib module roundf for portability");
1328 # if @REPLACE_ROUND@
1329 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1331 # define round rpl_round
1333 _GL_FUNCDECL_RPL (round, double, (double x));
1334 _GL_CXXALIAS_RPL (round, double, (double x));
1336 # if !@HAVE_DECL_ROUND@
1337 _GL_FUNCDECL_SYS (round, double, (double x));
1339 _GL_CXXALIAS_SYS (round, double, (double x));
1341 _GL_CXXALIASWARN (round);
1342 #elif defined GNULIB_POSIXCHECK
1344 # if HAVE_RAW_DECL_ROUND
1345 _GL_WARN_ON_USE (round, "round is unportable - "
1346 "use gnulib module round for portability");
1351 # if @REPLACE_ROUNDL@
1352 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1354 # define roundl rpl_roundl
1356 _GL_FUNCDECL_RPL (roundl, long double, (long double x));
1357 _GL_CXXALIAS_RPL (roundl, long double, (long double x));
1359 # if !@HAVE_DECL_ROUNDL@
1360 _GL_FUNCDECL_SYS (roundl, long double, (long double x));
1362 _GL_CXXALIAS_SYS (roundl, long double, (long double x));
1364 _GL_CXXALIASWARN (roundl);
1365 #elif defined GNULIB_POSIXCHECK
1367 # if HAVE_RAW_DECL_ROUNDL
1368 _GL_WARN_ON_USE (roundl, "roundl is unportable - "
1369 "use gnulib module roundl for portability");
1377 _GL_FUNCDECL_SYS (sinf, float, (float x));
1379 _GL_CXXALIAS_SYS (sinf, float, (float x));
1380 _GL_CXXALIASWARN (sinf);
1381 #elif defined GNULIB_POSIXCHECK
1383 # if HAVE_RAW_DECL_SINF
1384 _GL_WARN_ON_USE (sinf, "sinf is unportable - "
1385 "use gnulib module sinf for portability");
1390 # if !@HAVE_SINL@ || !@HAVE_DECL_SINL@
1392 _GL_FUNCDECL_SYS (sinl, long double, (long double x));
1394 _GL_CXXALIAS_SYS (sinl, long double, (long double x));
1395 _GL_CXXALIASWARN (sinl);
1396 #elif defined GNULIB_POSIXCHECK
1398 # if HAVE_RAW_DECL_SINL
1399 _GL_WARN_ON_USE (sinl, "sinl is unportable - "
1400 "use gnulib module sinl for portability");
1408 _GL_FUNCDECL_SYS (sinhf, float, (float x));
1410 _GL_CXXALIAS_SYS (sinhf, float, (float x));
1411 _GL_CXXALIASWARN (sinhf);
1412 #elif defined GNULIB_POSIXCHECK
1414 # if HAVE_RAW_DECL_SINHF
1415 _GL_WARN_ON_USE (sinhf, "sinhf is unportable - "
1416 "use gnulib module sinhf for portability");
1424 _GL_FUNCDECL_SYS (sqrtf, float, (float x));
1426 _GL_CXXALIAS_SYS (sqrtf, float, (float x));
1427 _GL_CXXALIASWARN (sqrtf);
1428 #elif defined GNULIB_POSIXCHECK
1430 # if HAVE_RAW_DECL_SQRTF
1431 _GL_WARN_ON_USE (sqrtf, "sqrtf is unportable - "
1432 "use gnulib module sqrtf for portability");
1437 # if !@HAVE_SQRTL@ || !@HAVE_DECL_SQRTL@
1439 _GL_FUNCDECL_SYS (sqrtl, long double, (long double x));
1441 _GL_CXXALIAS_SYS (sqrtl, long double, (long double x));
1442 _GL_CXXALIASWARN (sqrtl);
1443 #elif defined GNULIB_POSIXCHECK
1445 # if HAVE_RAW_DECL_SQRTL
1446 _GL_WARN_ON_USE (sqrtl, "sqrtl is unportable - "
1447 "use gnulib module sqrtl for portability");
1455 _GL_FUNCDECL_SYS (tanf, float, (float x));
1457 _GL_CXXALIAS_SYS (tanf, float, (float x));
1458 _GL_CXXALIASWARN (tanf);
1459 #elif defined GNULIB_POSIXCHECK
1461 # if HAVE_RAW_DECL_TANF
1462 _GL_WARN_ON_USE (tanf, "tanf is unportable - "
1463 "use gnulib module tanf for portability");
1468 # if !@HAVE_TANL@ || !@HAVE_DECL_TANL@
1470 _GL_FUNCDECL_SYS (tanl, long double, (long double x));
1472 _GL_CXXALIAS_SYS (tanl, long double, (long double x));
1473 _GL_CXXALIASWARN (tanl);
1474 #elif defined GNULIB_POSIXCHECK
1476 # if HAVE_RAW_DECL_TANL
1477 _GL_WARN_ON_USE (tanl, "tanl is unportable - "
1478 "use gnulib module tanl for portability");
1486 _GL_FUNCDECL_SYS (tanhf, float, (float x));
1488 _GL_CXXALIAS_SYS (tanhf, float, (float x));
1489 _GL_CXXALIASWARN (tanhf);
1490 #elif defined GNULIB_POSIXCHECK
1492 # if HAVE_RAW_DECL_TANHF
1493 _GL_WARN_ON_USE (tanhf, "tanhf is unportable - "
1494 "use gnulib module tanhf for portability");
1500 # if @REPLACE_TRUNCF@
1501 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1502 # define truncf rpl_truncf
1504 _GL_FUNCDECL_RPL (truncf, float, (float x));
1505 _GL_CXXALIAS_RPL (truncf, float, (float x));
1507 # if !@HAVE_DECL_TRUNCF@
1508 _GL_FUNCDECL_SYS (truncf, float, (float x));
1510 _GL_CXXALIAS_SYS (truncf, float, (float x));
1512 _GL_CXXALIASWARN (truncf);
1513 #elif defined GNULIB_POSIXCHECK
1515 # if HAVE_RAW_DECL_TRUNCF
1516 _GL_WARN_ON_USE (truncf, "truncf is unportable - "
1517 "use gnulib module truncf for portability");
1522 # if @REPLACE_TRUNC@
1523 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1524 # define trunc rpl_trunc
1526 _GL_FUNCDECL_RPL (trunc, double, (double x));
1527 _GL_CXXALIAS_RPL (trunc, double, (double x));
1529 # if !@HAVE_DECL_TRUNC@
1530 _GL_FUNCDECL_SYS (trunc, double, (double x));
1532 _GL_CXXALIAS_SYS (trunc, double, (double x));
1534 _GL_CXXALIASWARN (trunc);
1535 #elif defined GNULIB_POSIXCHECK
1537 # if HAVE_RAW_DECL_TRUNC
1538 _GL_WARN_ON_USE (trunc, "trunc is unportable - "
1539 "use gnulib module trunc for portability");
1544 # if @REPLACE_TRUNCL@
1545 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1547 # define truncl rpl_truncl
1549 _GL_FUNCDECL_RPL (truncl, long double, (long double x));
1550 _GL_CXXALIAS_RPL (truncl, long double, (long double x));
1552 # if !@HAVE_DECL_TRUNCL@
1553 _GL_FUNCDECL_SYS (truncl, long double, (long double x));
1555 _GL_CXXALIAS_SYS (truncl, long double, (long double x));
1557 _GL_CXXALIASWARN (truncl);
1558 #elif defined GNULIB_POSIXCHECK
1560 # if HAVE_RAW_DECL_TRUNCL
1561 _GL_WARN_ON_USE (truncl, "truncl is unportable - "
1562 "use gnulib module truncl for portability");
1567 /* Definitions of function-like macros come here, after the function
1571 #if @GNULIB_ISFINITE@
1572 # if @REPLACE_ISFINITE@
1573 _GL_EXTERN_C int gl_isfinitef (float x);
1574 _GL_EXTERN_C int gl_isfinited (double x);
1575 _GL_EXTERN_C int gl_isfinitel (long double x);
1577 # define isfinite(x) \
1578 (sizeof (x) == sizeof (long double) ? gl_isfinitel (x) : \
1579 sizeof (x) == sizeof (double) ? gl_isfinited (x) : \
1584 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isfinite)
1586 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isfinite)
1589 #elif defined GNULIB_POSIXCHECK
1590 # if defined isfinite
1591 _GL_WARN_REAL_FLOATING_DECL (isfinite);
1593 # define isfinite(x) _GL_WARN_REAL_FLOATING_IMPL (isfinite, x)
1599 # if @REPLACE_ISINF@
1600 _GL_EXTERN_C int gl_isinff (float x);
1601 _GL_EXTERN_C int gl_isinfd (double x);
1602 _GL_EXTERN_C int gl_isinfl (long double x);
1605 (sizeof (x) == sizeof (long double) ? gl_isinfl (x) : \
1606 sizeof (x) == sizeof (double) ? gl_isinfd (x) : \
1611 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isinf)
1613 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isinf)
1616 #elif defined GNULIB_POSIXCHECK
1618 _GL_WARN_REAL_FLOATING_DECL (isinf);
1620 # define isinf(x) _GL_WARN_REAL_FLOATING_IMPL (isinf, x)
1626 /* Test for NaN for 'float' numbers. */
1628 /* The original <math.h> included above provides a declaration of isnan macro
1629 or (older) isnanf function. */
1631 /* GCC 4.0 and newer provides three built-ins for isnan. */
1633 # define isnanf(x) __builtin_isnanf ((float)(x))
1634 # elif defined isnan
1636 # define isnanf(x) isnan ((float)(x))
1639 /* Test whether X is a NaN. */
1641 # define isnanf rpl_isnanf
1642 _GL_EXTERN_C int isnanf (float x);
1647 /* Test for NaN for 'double' numbers.
1648 This function is a gnulib extension, unlike isnan() which applied only
1649 to 'double' numbers earlier but now is a type-generic macro. */
1651 /* The original <math.h> included above provides a declaration of isnan
1654 /* GCC 4.0 and newer provides three built-ins for isnan. */
1656 # define isnand(x) __builtin_isnan ((double)(x))
1659 # define isnand(x) isnan ((double)(x))
1662 /* Test whether X is a NaN. */
1664 # define isnand rpl_isnand
1665 _GL_EXTERN_C int isnand (double x);
1670 /* Test for NaN for 'long double' numbers. */
1672 /* The original <math.h> included above provides a declaration of isnan
1673 macro or (older) isnanl function. */
1675 /* GCC 4.0 and newer provides three built-ins for isnan. */
1677 # define isnanl(x) __builtin_isnanl ((long double)(x))
1678 # elif defined isnan
1680 # define isnanl(x) isnan ((long double)(x))
1683 /* Test whether X is a NaN. */
1685 # define isnanl rpl_isnanl
1686 _GL_EXTERN_C int isnanl (long double x) _GL_ATTRIBUTE_CONST;
1690 /* This must come *after* the snippets for GNULIB_ISNANF and GNULIB_ISNANL! */
1692 # if @REPLACE_ISNAN@
1693 /* We can't just use the isnanf macro (e.g.) as exposed by
1694 isnanf.h (e.g.) here, because those may end up being macros
1695 that recursively expand back to isnan. So use the gnulib
1696 replacements for them directly. */
1697 # if @HAVE_ISNANF@ && __GNUC__ >= 4
1698 # define gl_isnan_f(x) __builtin_isnanf ((float)(x))
1700 _GL_EXTERN_C int rpl_isnanf (float x);
1701 # define gl_isnan_f(x) rpl_isnanf (x)
1703 # if @HAVE_ISNAND@ && __GNUC__ >= 4
1704 # define gl_isnan_d(x) __builtin_isnan ((double)(x))
1706 _GL_EXTERN_C int rpl_isnand (double x);
1707 # define gl_isnan_d(x) rpl_isnand (x)
1709 # if @HAVE_ISNANL@ && __GNUC__ >= 4
1710 # define gl_isnan_l(x) __builtin_isnanl ((long double)(x))
1712 _GL_EXTERN_C int rpl_isnanl (long double x) _GL_ATTRIBUTE_CONST;
1713 # define gl_isnan_l(x) rpl_isnanl (x)
1717 (sizeof (x) == sizeof (long double) ? gl_isnan_l (x) : \
1718 sizeof (x) == sizeof (double) ? gl_isnan_d (x) : \
1720 # elif __GNUC__ >= 4
1723 (sizeof (x) == sizeof (long double) ? __builtin_isnanl ((long double)(x)) : \
1724 sizeof (x) == sizeof (double) ? __builtin_isnan ((double)(x)) : \
1725 __builtin_isnanf ((float)(x)))
1729 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (isnan)
1731 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (isnan)
1734 /* Ensure isnan is a macro. */
1736 # define isnan isnan
1739 #elif defined GNULIB_POSIXCHECK
1741 _GL_WARN_REAL_FLOATING_DECL (isnan);
1743 # define isnan(x) _GL_WARN_REAL_FLOATING_IMPL (isnan, x)
1748 #if @GNULIB_SIGNBIT@
1749 # if @REPLACE_SIGNBIT_USING_GCC@
1751 /* GCC 4.0 and newer provides three built-ins for signbit. */
1752 # define signbit(x) \
1753 (sizeof (x) == sizeof (long double) ? __builtin_signbitl (x) : \
1754 sizeof (x) == sizeof (double) ? __builtin_signbit (x) : \
1755 __builtin_signbitf (x))
1757 # if @REPLACE_SIGNBIT@
1759 _GL_EXTERN_C int gl_signbitf (float arg);
1760 _GL_EXTERN_C int gl_signbitd (double arg);
1761 _GL_EXTERN_C int gl_signbitl (long double arg);
1762 # if __GNUC__ >= 2 && !defined __STRICT_ANSI__
1763 # define _GL_NUM_UINT_WORDS(type) \
1764 ((sizeof (type) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
1765 # if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT && !defined gl_signbitf
1766 # define gl_signbitf_OPTIMIZED_MACRO
1767 # define gl_signbitf(arg) \
1768 ({ union { float _value; \
1769 unsigned int _word[_GL_NUM_UINT_WORDS (float)]; \
1771 _m._value = (arg); \
1772 (_m._word[FLT_SIGNBIT_WORD] >> FLT_SIGNBIT_BIT) & 1; \
1775 # if defined DBL_SIGNBIT_WORD && defined DBL_SIGNBIT_BIT && !defined gl_signbitd
1776 # define gl_signbitd_OPTIMIZED_MACRO
1777 # define gl_signbitd(arg) \
1778 ({ union { double _value; \
1779 unsigned int _word[_GL_NUM_UINT_WORDS (double)]; \
1781 _m._value = (arg); \
1782 (_m._word[DBL_SIGNBIT_WORD] >> DBL_SIGNBIT_BIT) & 1; \
1785 # if defined LDBL_SIGNBIT_WORD && defined LDBL_SIGNBIT_BIT && !defined gl_signbitl
1786 # define gl_signbitl_OPTIMIZED_MACRO
1787 # define gl_signbitl(arg) \
1788 ({ union { long double _value; \
1789 unsigned int _word[_GL_NUM_UINT_WORDS (long double)]; \
1791 _m._value = (arg); \
1792 (_m._word[LDBL_SIGNBIT_WORD] >> LDBL_SIGNBIT_BIT) & 1; \
1796 # define signbit(x) \
1797 (sizeof (x) == sizeof (long double) ? gl_signbitl (x) : \
1798 sizeof (x) == sizeof (double) ? gl_signbitd (x) : \
1803 _GL_MATH_CXX_REAL_FLOATING_DECL_1 (signbit)
1805 _GL_MATH_CXX_REAL_FLOATING_DECL_2 (signbit)
1808 #elif defined GNULIB_POSIXCHECK
1809 # if defined signbit
1810 _GL_WARN_REAL_FLOATING_DECL (signbit);
1812 # define signbit(x) _GL_WARN_REAL_FLOATING_IMPL (signbit, x)
1817 #endif /* _@GUARD_PREFIX@_MATH_H */
1818 #endif /* _@GUARD_PREFIX@_MATH_H */