ReactOS
0.4.16-dev-226-g79f2289
fabsf.c
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/*
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* PROJECT: ReactOS CRT library
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* LICENSE: MIT (https://spdx.org/licenses/MIT)
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* PURPOSE: Portable implementation of fabsf
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* COPYRIGHT: Copyright 2021 Timo Kreuzer <timo.kreuzer@reactos.org>
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*/
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#include <math.h>
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_Check_return_
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float
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__cdecl
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fabsf
(
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_In_
float
x
)
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{
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/* Load the value as uint */
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unsigned
int
u32
= *(
unsigned
int
*)&
x
;
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/* Clear the sign bit */
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u32
&= ~(1 << 31);
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/* Check for NAN */
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if
(
u32
> 0x7F800000)
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{
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/* Set error bit */
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*(
unsigned
int
*)&
x
|= 0x00400000;
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return
x
;
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}
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/* Convert back to float */
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return
*(
float
*)&
u32
;
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}
__cdecl
#define __cdecl
Definition:
accygwin.h:79
u32
ULONG32 u32
Definition:
btrfs.h:14
fabsf
_Check_return_ float __cdecl fabsf(_In_ float x)
Definition:
fabsf.c:13
x
GLint GLint GLint GLint GLint x
Definition:
gl.h:1548
_Check_return_
#define _Check_return_
Definition:
no_sal2.h:60
_In_
#define _In_
Definition:
no_sal2.h:158
sdk
lib
crt
math
fabsf.c
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