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index.c
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C/C++ Source or Header
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1979-01-10
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219 b
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18 lines
/*
* Return the ptr in sp at which the character c appears;
* NULL if not found
*/
#define NULL 0
char *
index(sp, c)
register char *sp, c;
{
do {
if (*sp == c)
return(sp);
} while (*sp++);
return(NULL);
}