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22 lines
470 B
C
22 lines
470 B
C
/*
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* Compare two strings, just like strcmp, except that we tolerate null
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* pointers as a legal input, and define them to compare before any
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* non-null string (even the empty string).
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*/
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#include <string.h>
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#include "defs.h"
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#include "misc.h"
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int nullstrcmp(const char *a, const char *b)
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{
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if (a == NULL && b == NULL)
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return 0;
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if (a == NULL)
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return -1;
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if (b == NULL)
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return +1;
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return strcmp(a, b);
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}
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