diff options
Diffstat (limited to 'lib/std/special/compiler_rt/fixunssfti_test.zig')
| -rw-r--r-- | lib/std/special/compiler_rt/fixunssfti_test.zig | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/lib/std/special/compiler_rt/fixunssfti_test.zig b/lib/std/special/compiler_rt/fixunssfti_test.zig new file mode 100644 index 0000000000..4cb27cbb8a --- /dev/null +++ b/lib/std/special/compiler_rt/fixunssfti_test.zig @@ -0,0 +1,41 @@ +const __fixunssfti = @import("fixunssfti.zig").__fixunssfti; +const testing = @import("std").testing; + +fn test__fixunssfti(a: f32, expected: u128) void { + const x = __fixunssfti(a); + testing.expect(x == expected); +} + +test "fixunssfti" { + test__fixunssfti(0.0, 0); + + test__fixunssfti(0.5, 0); + test__fixunssfti(0.99, 0); + test__fixunssfti(1.0, 1); + test__fixunssfti(1.5, 1); + test__fixunssfti(1.99, 1); + test__fixunssfti(2.0, 2); + test__fixunssfti(2.01, 2); + test__fixunssfti(-0.5, 0); + test__fixunssfti(-0.99, 0); + + test__fixunssfti(-1.0, 0); + test__fixunssfti(-1.5, 0); + test__fixunssfti(-1.99, 0); + test__fixunssfti(-2.0, 0); + test__fixunssfti(-2.01, 0); + + test__fixunssfti(0x1.FFFFFEp+63, 0xFFFFFF0000000000); + test__fixunssfti(0x1.000000p+63, 0x8000000000000000); + test__fixunssfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000); + test__fixunssfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000); + test__fixunssfti(0x1.FFFFFEp+127, 0xFFFFFF00000000000000000000000000); + test__fixunssfti(0x1.000000p+127, 0x80000000000000000000000000000000); + test__fixunssfti(0x1.FFFFFEp+126, 0x7FFFFF80000000000000000000000000); + test__fixunssfti(0x1.FFFFFCp+126, 0x7FFFFF00000000000000000000000000); + + test__fixunssfti(-0x1.FFFFFEp+62, 0x0000000000000000); + test__fixunssfti(-0x1.FFFFFCp+62, 0x0000000000000000); + test__fixunssfti(-0x1.FFFFFEp+126, 0x0000000000000000); + test__fixunssfti(-0x1.FFFFFCp+126, 0x0000000000000000); +} |