No visible API change. Signed-off-by: Chia-I Wu <olvaffe@gmail.com> Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org> Reviewed-by: Ryan Neph <ryanneph@google.com> Acked-by: Gert Wollny <gert.wollny@collabora.com>macos/master
Chia-I Wu
3 years ago
parent
c6f193ce32
commit
90ab7ae537
@ -0,0 +1,27 @@ |
|||||||
|
/* Copyright 2019 Intel Corporation */ |
||||||
|
/* SPDX-License-Identifier: MIT */ |
||||||
|
|
||||||
|
#include "no_extern_c.h" |
||||||
|
|
||||||
|
#ifndef _C11_COMPAT_H_ |
||||||
|
#define _C11_COMPAT_H_ |
||||||
|
|
||||||
|
#if defined(__cplusplus) |
||||||
|
/* This is C++ code, not C */ |
||||||
|
#elif (__STDC_VERSION__ >= 201112L) |
||||||
|
/* Already C11 */ |
||||||
|
#else |
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* C11 static_assert() macro |
||||||
|
* assert.h only defines that name for C11 and above |
||||||
|
*/ |
||||||
|
#ifndef static_assert |
||||||
|
#define static_assert _Static_assert |
||||||
|
#endif |
||||||
|
|
||||||
|
|
||||||
|
#endif /* !C++ && !C11 */ |
||||||
|
|
||||||
|
#endif /* _C11_COMPAT_H_ */ |
||||||
@ -0,0 +1,211 @@ |
|||||||
|
/**************************************************************************
|
||||||
|
* |
||||||
|
* Copyright 2007-2015 VMware, Inc. |
||||||
|
* All Rights Reserved. |
||||||
|
* |
||||||
|
* Permission is hereby granted, free of charge, to any person obtaining a |
||||||
|
* copy of this software and associated documentation files (the |
||||||
|
* "Software"), to deal in the Software without restriction, including |
||||||
|
* without limitation the rights to use, copy, modify, merge, publish, |
||||||
|
* distribute, sub license, and/or sell copies of the Software, and to |
||||||
|
* permit persons to whom the Software is furnished to do so, subject to |
||||||
|
* the following conditions: |
||||||
|
* |
||||||
|
* The above copyright notice and this permission notice (including the |
||||||
|
* next paragraph) shall be included in all copies or substantial portions |
||||||
|
* of the Software. |
||||||
|
* |
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
||||||
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
||||||
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
||||||
|
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
||||||
|
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
||||||
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
||||||
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||||||
|
* |
||||||
|
**************************************************************************/ |
||||||
|
|
||||||
|
/**
|
||||||
|
* Wrapper for math.h which makes sure we have definitions of all the c99 |
||||||
|
* functions. |
||||||
|
*/ |
||||||
|
|
||||||
|
|
||||||
|
#ifndef _C99_MATH_H_ |
||||||
|
#define _C99_MATH_H_ |
||||||
|
|
||||||
|
#include <math.h> |
||||||
|
#include "c99_compat.h" |
||||||
|
|
||||||
|
|
||||||
|
/* This is to ensure that we get M_PI, etc. definitions */ |
||||||
|
#if defined(_MSC_VER) && !defined(_USE_MATH_DEFINES) |
||||||
|
#error _USE_MATH_DEFINES define required when building with MSVC |
||||||
|
#endif |
||||||
|
|
||||||
|
|
||||||
|
#if !defined(_MSC_VER) && \ |
||||||
|
__STDC_VERSION__ < 199901L && \
|
||||||
|
(!defined(_XOPEN_SOURCE) || _XOPEN_SOURCE < 600) && \
|
||||||
|
!defined(__cplusplus) |
||||||
|
|
||||||
|
static inline long int |
||||||
|
lrint(double d) |
||||||
|
{ |
||||||
|
long int rounded = (long int)(d + 0.5); |
||||||
|
|
||||||
|
if (d - floor(d) == 0.5) { |
||||||
|
if (rounded % 2 != 0) |
||||||
|
rounded += (d > 0) ? -1 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return rounded; |
||||||
|
} |
||||||
|
|
||||||
|
static inline long int |
||||||
|
lrintf(float f) |
||||||
|
{ |
||||||
|
long int rounded = (long int)(f + 0.5f); |
||||||
|
|
||||||
|
if (f - floorf(f) == 0.5f) { |
||||||
|
if (rounded % 2 != 0) |
||||||
|
rounded += (f > 0) ? -1 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return rounded; |
||||||
|
} |
||||||
|
|
||||||
|
static inline long long int |
||||||
|
llrint(double d) |
||||||
|
{ |
||||||
|
long long int rounded = (long long int)(d + 0.5); |
||||||
|
|
||||||
|
if (d - floor(d) == 0.5) { |
||||||
|
if (rounded % 2 != 0) |
||||||
|
rounded += (d > 0) ? -1 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return rounded; |
||||||
|
} |
||||||
|
|
||||||
|
static inline long long int |
||||||
|
llrintf(float f) |
||||||
|
{ |
||||||
|
long long int rounded = (long long int)(f + 0.5f); |
||||||
|
|
||||||
|
if (f - floorf(f) == 0.5f) { |
||||||
|
if (rounded % 2 != 0) |
||||||
|
rounded += (f > 0) ? -1 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return rounded; |
||||||
|
} |
||||||
|
|
||||||
|
static inline float |
||||||
|
exp2f(float f) |
||||||
|
{ |
||||||
|
return powf(2.0f, f); |
||||||
|
} |
||||||
|
|
||||||
|
static inline double |
||||||
|
exp2(double d) |
||||||
|
{ |
||||||
|
return pow(2.0, d); |
||||||
|
} |
||||||
|
|
||||||
|
#endif /* C99 */ |
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* signbit() is a macro on Linux. Not available on Windows. |
||||||
|
*/ |
||||||
|
#ifndef signbit |
||||||
|
#define signbit(x) ((x) < 0.0f) |
||||||
|
#endif |
||||||
|
|
||||||
|
|
||||||
|
#ifndef M_PI |
||||||
|
#define M_PI (3.14159265358979323846) |
||||||
|
#endif |
||||||
|
|
||||||
|
#ifndef M_E |
||||||
|
#define M_E (2.7182818284590452354) |
||||||
|
#endif |
||||||
|
|
||||||
|
#ifndef M_LOG2E |
||||||
|
#define M_LOG2E (1.4426950408889634074) |
||||||
|
#endif |
||||||
|
|
||||||
|
#ifndef FLT_MAX_EXP |
||||||
|
#define FLT_MAX_EXP 128 |
||||||
|
#endif |
||||||
|
|
||||||
|
|
||||||
|
#if defined(fpclassify) |
||||||
|
/* ISO C99 says that fpclassify is a macro. Assume that any implementation
|
||||||
|
* of fpclassify, whether it's in a C99 compiler or not, will be a macro. |
||||||
|
*/ |
||||||
|
#elif defined(__cplusplus) |
||||||
|
/* For C++, fpclassify() should be defined in <cmath> */ |
||||||
|
#elif defined(_MSC_VER) |
||||||
|
/* Not required on VS2013 and above. Oddly, the fpclassify() function
|
||||||
|
* doesn't exist in such a form on MSVC. This is an implementation using |
||||||
|
* slightly different lower-level Windows functions. |
||||||
|
*/ |
||||||
|
#include <float.h> |
||||||
|
|
||||||
|
static inline enum {FP_NAN, FP_INFINITE, FP_ZERO, FP_SUBNORMAL, FP_NORMAL} |
||||||
|
fpclassify(double x) |
||||||
|
{ |
||||||
|
switch(_fpclass(x)) { |
||||||
|
case _FPCLASS_SNAN: /* signaling NaN */ |
||||||
|
case _FPCLASS_QNAN: /* quiet NaN */ |
||||||
|
return FP_NAN; |
||||||
|
case _FPCLASS_NINF: /* negative infinity */ |
||||||
|
case _FPCLASS_PINF: /* positive infinity */ |
||||||
|
return FP_INFINITE; |
||||||
|
case _FPCLASS_NN: /* negative normal */ |
||||||
|
case _FPCLASS_PN: /* positive normal */ |
||||||
|
return FP_NORMAL; |
||||||
|
case _FPCLASS_ND: /* negative denormalized */ |
||||||
|
case _FPCLASS_PD: /* positive denormalized */ |
||||||
|
return FP_SUBNORMAL; |
||||||
|
case _FPCLASS_NZ: /* negative zero */ |
||||||
|
case _FPCLASS_PZ: /* positive zero */ |
||||||
|
return FP_ZERO; |
||||||
|
default: |
||||||
|
/* Should never get here; but if we do, this will guarantee
|
||||||
|
* that the pattern is not treated like a number. |
||||||
|
*/ |
||||||
|
return FP_NAN; |
||||||
|
} |
||||||
|
} |
||||||
|
#else |
||||||
|
#error "Need to include or define an fpclassify function" |
||||||
|
#endif |
||||||
|
|
||||||
|
|
||||||
|
/* Since C++11, the following functions are part of the std namespace. Their C
|
||||||
|
* counteparts should still exist in the global namespace, however cmath |
||||||
|
* undefines those functions, which in glibc 2.23, are defined as macros rather |
||||||
|
* than functions as in glibc 2.22. |
||||||
|
*/ |
||||||
|
#if __cplusplus >= 201103L && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 23)) |
||||||
|
#include <cmath> |
||||||
|
|
||||||
|
using std::fpclassify; |
||||||
|
using std::isfinite; |
||||||
|
using std::isinf; |
||||||
|
using std::isnan; |
||||||
|
using std::isnormal; |
||||||
|
using std::signbit; |
||||||
|
using std::isgreater; |
||||||
|
using std::isgreaterequal; |
||||||
|
using std::isless; |
||||||
|
using std::islessequal; |
||||||
|
using std::islessgreater; |
||||||
|
using std::isunordered; |
||||||
|
#endif |
||||||
|
|
||||||
|
|
||||||
|
#endif /* #define _C99_MATH_H_ */ |
||||||
Loading…
Reference in new issue