diff options
Diffstat (limited to 'src/test.cpp')
| -rw-r--r-- | src/test.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/test.cpp b/src/test.cpp index cd353c0ea..6cd7983fc 100644 --- a/src/test.cpp +++ b/src/test.cpp @@ -199,6 +199,16 @@ struct TestUtilities: public TestBase UASSERT(is_number("123") == true); UASSERT(is_number("") == false); UASSERT(is_number("123a") == false); + UASSERT(is_power_of_two(0) == false); + UASSERT(is_power_of_two(1) == true); + UASSERT(is_power_of_two(2) == true); + UASSERT(is_power_of_two(3) == false); + for (int exponent = 2; exponent <= 31; ++exponent) { + UASSERT(is_power_of_two((1 << exponent) - 1) == false); + UASSERT(is_power_of_two((1 << exponent)) == true); + UASSERT(is_power_of_two((1 << exponent) + 1) == false); + } + UASSERT(is_power_of_two((u32)-1) == false); } }; |