diff options
Diffstat (limited to 'test/cases/math.zig')
| -rw-r--r-- | test/cases/math.zig | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/test/cases/math.zig b/test/cases/math.zig index 574aa39bb1..13704ecd4b 100644 --- a/test/cases/math.zig +++ b/test/cases/math.zig @@ -349,6 +349,31 @@ test "big number shifting" { } } +test "big number multi-limb shift and mask" { + comptime { + var a = 0xefffffffa0000001eeeeeeefaaaaaaab; + + assert(u32(a & 0xffffffff) == 0xaaaaaaab); + a >>= 32; + assert(u32(a & 0xffffffff) == 0xeeeeeeef); + a >>= 32; + assert(u32(a & 0xffffffff) == 0xa0000001); + a >>= 32; + assert(u32(a & 0xffffffff) == 0xefffffff); + a >>= 32; + + assert(a == 0); + } +} + +test "big number multi-limb partial shift right" { + comptime { + var a = 0x1ffffffffeeeeeeee; + a >>= 16; + assert(a == 0x1ffffffffeeee); + } +} + test "xor" { test_xor(); comptime test_xor(); @@ -402,3 +427,19 @@ test "comptime float rem int" { assert(x == 1.0); } } + +test "@sqrt" { + testSqrt(f64, 12.0); + comptime testSqrt(f64, 12.0); + testSqrt(f32, 13.0); + comptime testSqrt(f32, 13.0); + + const x = 14.0; + const y = x * x; + const z = @sqrt(@typeOf(y), y); + comptime assert(z == x); +} + +fn testSqrt(comptime T: type, x: T) void { + assert(@sqrt(T, x * x) == x); +} |
