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Find a character in a string
#include <strings.h>
char* index( const char* s, 
             int c );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The index() function returns a pointer to the first occurrence of the character c in the string s.
A pointer to the character, or NULL if the character doesn't occur in the string.
| Safety: | |
|---|---|
| Cancellation point | No | 
| Interrupt handler | No | 
| Signal handler | Yes | 
| Thread | Yes | 
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