40 lines
868 B
C
40 lines
868 B
C
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/* strcmp( const char *, const char * )
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This file is part of the Public Domain C Library (PDCLib).
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Permission is granted to use, modify, and / or redistribute at will.
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*/
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#include <string.h>
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#ifndef REGTEST
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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 ( *(unsigned char *)s1 - *(unsigned char *)s2 );
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}
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#endif
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#ifdef TEST
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#include "_PDCLIB_test.h"
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int main( void )
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{
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char cmpabcde[] = "abcde";
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char cmpabcd_[] = "abcd\xfc";
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char empty[] = "";
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TESTCASE( strcmp( abcde, cmpabcde ) == 0 );
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TESTCASE( strcmp( abcde, abcdx ) < 0 );
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TESTCASE( strcmp( abcdx, abcde ) > 0 );
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TESTCASE( strcmp( empty, abcde ) < 0 );
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TESTCASE( strcmp( abcde, empty ) > 0 );
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TESTCASE( strcmp( abcde, cmpabcd_ ) < 0 );
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return TEST_RESULTS;
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}
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#endif
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