Files
Digital-Research-Source-Code/CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v102a/clib/strrchr.c
Sepp J Morris 31738079c4 Upload
Digital Research
2020-11-06 18:50:37 +01:00

36 lines
972 B
C

/*********************************************************************
* STRRCHAR - returns a pointer to last occurrence of char in string.
*
* BYTE *strrchr(s,c)
* BYTE *s, c;
*
* Like 'strchr', only returns pointer to last c in s (instead of first),
* or zero if c not in s.
*
* Edits:
* 1/84 whf change from 'rindex()' to 'strchr()'
**********************************************************************/
#include "portab.h"
BYTE * strrchr(str,ch) /* CLEAR FUNCTION ***********/
REG BYTE *str, ch;
{
REG BYTE *t;
for( t=str; *t; t++ ) /* look for eos. */
;
for( ; ch != *t ; t-- ) /* look for c in s. */
if( t==str ) /* if we get to start of string,*/
return(NULL); /* too far. */
return(t); /* found c. note that 'rindex' */
/* works (ie. returns eos) */
/* if c==NULL. */
}
BYTE * rindex(str,ch) /* CLEAR FUNCTION ***********/
REG BYTE *str, ch;
{
return strrchr(str,ch); /* 'jacket' rtn for V7 compatability*/
}