44 lines
651 B
C
Executable File
44 lines
651 B
C
Executable File
/*
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strcasecmp.c
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Created Oct 14, 1991 by Philip Homburg
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*/
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#include <ctype.h>
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#include <string.h>
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#ifdef __STDC__
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#define _CONST const
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#else
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#define _CONST
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#endif
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int
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strcasecmp(s1, s2)
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_CONST char *s1, *s2;
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{
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int c1, c2;
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while (c1= toupper(*s1++), c2= toupper(*s2++), c1 == c2 && (c1 & c2))
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;
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if (c1 & c2)
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return c1 < c2 ? -1 : 1;
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return c1 ? 1 : (c2 ? -1 : 0);
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}
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int
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strncasecmp(s1, s2, len)
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_CONST char *s1, *s2;
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size_t len;
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{
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int c1, c2;
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do {
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if (len == 0)
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return 0;
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len--;
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} while (c1= toupper(*s1++), c2= toupper(*s2++), c1 == c2 && (c1 & c2))
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;
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if (c1 & c2)
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return c1 < c2 ? -1 : 1;
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return c1 ? 1 : (c2 ? -1 : 0);
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}
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