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60 lines
1.5 KiB
60 lines
1.5 KiB
/***
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*strcmp.c - routine to compare two strings (for equal, less, or greater)
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*
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* Copyright (c) 1985-1991, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Compares two string, determining their lexical order.
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*
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*Revision History:
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <string.h>
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#include <plstring.h>
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#include <stdlib.h>
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#include <macos\types.h>
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/***
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*strcmp - compare two strings, returning less than, equal to, or greater than
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*
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*Purpose:
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* STRCMP compares two strings and returns an integer
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* to indicate whether the first is less than the second, the two are
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* equal, or whether the first is greater than the second.
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*
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* Comparison is done byte by byte on an UNSIGNED basis, which is to
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* say that Null (0) is less than any other character (1-255).
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*
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*Entry:
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* const char * src - string for left-hand side of comparison
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* const char * dst - string for right-hand side of comparison
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*
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*Exit:
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* returns -1 if src < dst
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* returns 0 if src == dst
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* returns +1 if src > dst
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*
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*Exceptions:
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*
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*******************************************************************************/
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short __pascal PLstrcmp(const unsigned char * str1, const unsigned char * str2)
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{
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int ret = 0 ;
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int len1= StrLength(str1);
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int len2= StrLength(str2);
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int count = min(len1, len2);
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ret = memcmp(str1+1, str2+1, count);
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if (ret == 0)
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{
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if (len1 > len2)
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ret = 1;
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else if (len1 < len2)
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ret = -1;
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}
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return( ret );
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}
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