TESTCASE( strtoimax( "-9223372036854775809", NULL, 0 ) == INTMAX_MIN );
TESTCASE( errno == ERANGE );
/* TODO: test "odd" overflow, i.e. base is not power of two */
TESTCASE( strtoimax( "-9223372036854775809", NULL, 0 ) == INTMAX_MIN );
TESTCASE( errno == ERANGE );
/* TODO: test "odd" overflow, i.e. base is not power of two */