29 lines
492 B
C
29 lines
492 B
C
#include <strcmp.h>
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int strcmp(const char *s1, const char *s2)
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{
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while(*s1 && (*s1 == *s2))
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{
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s1++;
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s2++;
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}
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return *(const unsigned char*)s1 - *(const unsigned char*)s2;
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}
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int strncmp( const char * s1, const char * s2, int n ) {
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while ( n && *s1 && ( *s1 == *s2 ) )
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{
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++s1;
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++s2;
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--n;
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}
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if ( n == 0 )
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{
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return 0;
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}
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else
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{
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return ( *(unsigned char *)s1 - *(unsigned char *)s2 );
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}
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}
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