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public: add Q_memor routine that binary OR's data from src to dst

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Supposed to be compiled with optimizations enabled.
This commit is contained in:
Alibek Omarov 2024-05-26 23:11:07 +03:00
parent 0848f28d83
commit 2ad6511c31
3 changed files with 20 additions and 0 deletions
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8
common/xash3d_types.h
View file

@ -128,6 +128,14 @@ typedef uint64_t longtime_t;
#define STATIC_ASSERT( x, y ) STATIC_ASSERT_2( __LINE__, x, y )
#endif
#if !defined( __cplusplus ) && __STDC_VERSION__ >= 199101L // not C++ and C99 or newer
#define XASH_RESTRICT restrict
#elif _MSC_VER || __GNUC__ || __clang__ // compiler-specific extensions
#define XASH_RESTRICT __restrict
#else
#define XASH_RESTRICT // nothing
#endif
#ifdef XASH_BIG_ENDIAN
#define LittleLong(x) (((int)(((x)&255)<<24)) + ((int)((((x)>>8)&255)<<16)) + ((int)(((x)>>16)&255)<<8) + (((x) >> 24)&255))
#define LittleLongSW(x) (x = LittleLong(x) )

7
public/crtlib.c
View file

@ -274,6 +274,13 @@ const byte *Q_memmem( const byte *haystack, size_t haystacklen, const byte *need
return NULL;
}
void Q_memor( byte *XASH_RESTRICT dst, const byte *XASH_RESTRICT src, size_t len )
{
size_t i;
for( i = 0; i < len; i++ ) // msvc likes to optimize this loop form
dst[i] |= src[i];
}
const char* Q_timestamp( int format )
{
static string timestamp;

5
public/crtlib.h
View file

@ -45,6 +45,10 @@ enum
#define PFILE_TOKEN_MAX_LENGTH 1024
#define PFILE_FS_TOKEN_MAX_LENGTH 512
#ifdef __cplusplus
#define restrict
#endif // __cplusplus
//
// build.c
//
@ -72,6 +76,7 @@ void Q_atov( float *vec, const char *str, size_t siz );
qboolean Q_stricmpext( const char *pattern, const char *text );
qboolean Q_strnicmpext( const char *pattern, const char *text, size_t minimumlen );
const byte *Q_memmem( const byte *haystack, size_t haystacklen, const byte *needle, size_t needlelen );
void Q_memor( byte *XASH_RESTRICT dst, const byte *XASH_RESTRICT src, size_t len );
const char *Q_timestamp( int format );
int Q_vsnprintf( char *buffer, size_t buffersize, const char *format, va_list args );
int Q_snprintf( char *buffer, size_t buffersize, const char *format, ... ) _format( 3 );