73 lines
1.3 KiB
C
73 lines
1.3 KiB
C
#ifndef _STRINGS_H
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#define _STRINGS_H
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <limits.h>
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#include <string.h>
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#include <bits/strings.h>
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static inline __attribute__ (( always_inline )) int
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__constant_flsll ( unsigned long long x ) {
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int r = 0;
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if ( x & 0xffffffff00000000ULL ) {
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x >>= 32;
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r += 32;
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}
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if ( x & 0xffff0000UL ) {
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x >>= 16;
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r += 16;
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}
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if ( x & 0xff00 ) {
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x >>= 8;
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r += 8;
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}
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if ( x & 0xf0 ) {
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x >>= 4;
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r += 4;
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}
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if ( x & 0xc ) {
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x >>= 2;
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r += 2;
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}
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if ( x & 0x2 ) {
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x >>= 1;
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r += 1;
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}
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if ( x & 0x1 ) {
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r += 1;
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}
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return r;
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}
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static inline __attribute__ (( always_inline )) int
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__constant_flsl ( unsigned long x ) {
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return __constant_flsll ( x );
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}
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int __flsll ( long long x );
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int __flsl ( long x );
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#define flsll( x ) \
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( __builtin_constant_p ( x ) ? __constant_flsll ( x ) : __flsll ( x ) )
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#define flsl( x ) \
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( __builtin_constant_p ( x ) ? __constant_flsl ( x ) : __flsl ( x ) )
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#define fls( x ) flsl ( x )
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extern int strcasecmp ( const char *s1, const char *s2 );
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static inline __attribute__ (( always_inline )) void
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bcopy ( const void *src, void *dest, size_t n ) {
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memmove ( dest, src, n );
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}
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static inline __attribute__ (( always_inline )) void
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bzero ( void *s, size_t n ) {
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memset ( s, 0, n );
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}
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#endif /* _STRINGS_H */
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