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26 lines
711 B
C
26 lines
711 B
C
/*********************************************************************
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* RINDEX - returns a pointer to last occurrence of char in string.
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*
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* BYTE *rindex(s,c)
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* BYTE *s, c;
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*
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* Like 'index', only returns pointer to last c in s (instead of first),
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* or zero if c not in s.
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**********************************************************************/
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#include <portab.h>
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BYTE *rindex(s,c)
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BYTE *s, c;
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{ REG BYTE *t;
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for( t=s; *t; t++ ) /* look for eos. */
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;
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for( ; c != *t ; t-- ) /* look for c in s. */
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if( t==s ) /* if we get to start of string,*/
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return(0); /* too far. */
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return(t); /* found c. note that 'rindex' */
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/* works (ie. returns eos) */
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/* if c==NULL. */
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}
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