TESTCASE( testprintf( target, "%+d", INT_MIN ) == INT_DIG + 1 );
TESTCASE_SPRINTF( "-" INT_MIN_DEZ_STR );
TESTCASE( testprintf( target, "%+d", INT_MAX ) == INT_DIG + 1 );
TESTCASE( testprintf( target, "%+d", INT_MIN ) == INT_DIG + 1 );
TESTCASE_SPRINTF( "-" INT_MIN_DEZ_STR );
TESTCASE( testprintf( target, "%+d", INT_MAX ) == INT_DIG + 1 );