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FFmpeg/compat/float/float.h

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Work around broken floating point limits on some systems. The values of {FLT,DBL}_{MAX,MIN} macros on some systems (older musl libc, some BSD flavours) are not exactly representable, i.e. (double)DBL_MAX == DBL_MAX is false This violates (at least some interpretations of) the C99 standard and breaks code (e.g. in vf_fps) like double f = DBL_MAX; [...] if (f == DBL_MAX) { // f has not been changed yet [....] }
2013-11-14 14:19:04 +03:00
/*
* Work around broken floating point limits on some systems.
*
Merge remote-tracking branch 'qatar/master' * qatar/master: Work around broken floating point limits on some systems. Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-10 14:03:29 +03:00
* This file is part of FFmpeg.
Work around broken floating point limits on some systems. The values of {FLT,DBL}_{MAX,MIN} macros on some systems (older musl libc, some BSD flavours) are not exactly representable, i.e. (double)DBL_MAX == DBL_MAX is false This violates (at least some interpretations of) the C99 standard and breaks code (e.g. in vf_fps) like double f = DBL_MAX; [...] if (f == DBL_MAX) { // f has not been changed yet [....] }
2013-11-14 14:19:04 +03:00
*
Merge remote-tracking branch 'qatar/master' * qatar/master: Work around broken floating point limits on some systems. Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-10 14:03:29 +03:00
* FFmpeg is free software; you can redistribute it and/or
Work around broken floating point limits on some systems. The values of {FLT,DBL}_{MAX,MIN} macros on some systems (older musl libc, some BSD flavours) are not exactly representable, i.e. (double)DBL_MAX == DBL_MAX is false This violates (at least some interpretations of) the C99 standard and breaks code (e.g. in vf_fps) like double f = DBL_MAX; [...] if (f == DBL_MAX) { // f has not been changed yet [....] }
2013-11-14 14:19:04 +03:00
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
Merge remote-tracking branch 'qatar/master' * qatar/master: Work around broken floating point limits on some systems. Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-10 14:03:29 +03:00
* FFmpeg is distributed in the hope that it will be useful,
Work around broken floating point limits on some systems. The values of {FLT,DBL}_{MAX,MIN} macros on some systems (older musl libc, some BSD flavours) are not exactly representable, i.e. (double)DBL_MAX == DBL_MAX is false This violates (at least some interpretations of) the C99 standard and breaks code (e.g. in vf_fps) like double f = DBL_MAX; [...] if (f == DBL_MAX) { // f has not been changed yet [....] }
2013-11-14 14:19:04 +03:00
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
Merge remote-tracking branch 'qatar/master' * qatar/master: Work around broken floating point limits on some systems. Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-10 14:03:29 +03:00
* License along with FFmpeg; if not, write to the Free Software
Work around broken floating point limits on some systems. The values of {FLT,DBL}_{MAX,MIN} macros on some systems (older musl libc, some BSD flavours) are not exactly representable, i.e. (double)DBL_MAX == DBL_MAX is false This violates (at least some interpretations of) the C99 standard and breaks code (e.g. in vf_fps) like double f = DBL_MAX; [...] if (f == DBL_MAX) { // f has not been changed yet [....] }
2013-11-14 14:19:04 +03:00
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include_next <float.h>
#ifdef FLT_MAX
#undef FLT_MAX
#define FLT_MAX 3.40282346638528859812e+38F
#undef FLT_MIN
#define FLT_MIN 1.17549435082228750797e-38F
#undef DBL_MAX
#define DBL_MAX ((double)1.79769313486231570815e+308L)
#undef DBL_MIN
#define DBL_MIN ((double)2.22507385850720138309e-308L)
#endif
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