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31 lines
735 B
Plaintext
31 lines
735 B
Plaintext
/*********************************************************************
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* STRNCMP - compares strings up to n chars
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*
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* WORD strncmp(s1,s2,n)
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* BYTE *s1, *s2;
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* UWORD n;
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*
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* 'strncmp' compares null terminated strings s1 and s2, and examines
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* at most n chars.
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* Always compares at least 1 char.
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* n < 0 compares many, many characters.
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* Returns:
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* strncmp < 0 if s1<s2 (within n chars)
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* strncmp = 0 if s1=s2 " " "
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* strncmp > 0 if s1>s2 " " "
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*********************************************************************/
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#include <portab.h>
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WORD strncmp(s1,s2,n)
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REG BYTE *s1, *s2;
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REG WORD n;
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{
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for( ; --n > 0 && (*s1 == *s2); s1++, s2++ )
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{
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if( *s1 == NULL )
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return(0);
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}
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return(*s1 - *s2);
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}
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