Synopsis

#include <string.h>

char *strstr(const char *s1, const char *s2);

Status

Partially implemented

Conformance

IEEE Std 1003.1-2017

Description

The strstr() function shall locate the first occurrence in the string pointed to by s1 of the sequence of bytes (excluding the terminating NUL character) in the string pointed to by s2.

Return value

Upon successful completion, strstr() shall return a pointer to the located string or a null pointer if the string is not found. If s2 points to a string with zero length, the function shall return s1.

Errors

No errors are defined.

Tests

Untested

Known bugs

None

See Also

  1. Standard library functions
  2. Table of Contents