+ BEGIN_TESTS;
+ TESTCASE( memchr( abcde, 'c', 5 ) == &abcde[2] );
+ TESTCASE( memchr( abcde, 'a', 1 ) == &abcde[0] );
+ TESTCASE( memchr( abcde, 'a', 0 ) == NULL );
+ TESTCASE( memchr( abcde, '\0', 5 ) == NULL );
+ TESTCASE( memchr( abcde, '\0', 6 ) == &abcde[5] );
+ return TEST_RESULTS;