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| author | Andrew Kelley <andrew@ziglang.org> | 2019-09-26 01:54:45 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-09-26 01:54:45 -0400 |
| commit | 68bb3945708c43109c48bda3664176307d45b62c (patch) | |
| tree | afb9731e10cef9d192560b52cd9ae2cf179775c4 /lib/std/special/compiler_rt/fixtfdi_test.zig | |
| parent | 6128bc728d1e1024a178c16c2149f5b1a167a013 (diff) | |
| parent | 4637e8f9699af9c3c6cf4df50ef5bb67c7a318a4 (diff) | |
| download | zig-68bb3945708c43109c48bda3664176307d45b62c.tar.gz zig-68bb3945708c43109c48bda3664176307d45b62c.zip | |
Merge pull request #3315 from ziglang/mv-std-lib
Move std/ to lib/std/
Diffstat (limited to 'lib/std/special/compiler_rt/fixtfdi_test.zig')
| -rw-r--r-- | lib/std/special/compiler_rt/fixtfdi_test.zig | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/lib/std/special/compiler_rt/fixtfdi_test.zig b/lib/std/special/compiler_rt/fixtfdi_test.zig new file mode 100644 index 0000000000..7c63547642 --- /dev/null +++ b/lib/std/special/compiler_rt/fixtfdi_test.zig @@ -0,0 +1,75 @@ +const __fixtfdi = @import("fixtfdi.zig").__fixtfdi; +const std = @import("std"); +const math = std.math; +const testing = std.testing; +const warn = std.debug.warn; + +fn test__fixtfdi(a: f128, expected: i64) void { + const x = __fixtfdi(a); + //warn("a={}:{x} x={}:{x} expected={}:{x}:u64({x})\n", a, @bitCast(u128, a), x, x, expected, expected, @bitCast(u64, expected)); + testing.expect(x == expected); +} + +test "fixtfdi" { + //warn("\n"); + test__fixtfdi(-math.f128_max, math.minInt(i64)); + + test__fixtfdi(-0x1.FFFFFFFFFFFFFp+1023, math.minInt(i64)); + test__fixtfdi(-0x1.FFFFFFFFFFFFFp+1023, -0x8000000000000000); + + test__fixtfdi(-0x1.0000000000000p+127, -0x8000000000000000); + test__fixtfdi(-0x1.FFFFFFFFFFFFFp+126, -0x8000000000000000); + test__fixtfdi(-0x1.FFFFFFFFFFFFEp+126, -0x8000000000000000); + + test__fixtfdi(-0x1.0000000000001p+63, -0x8000000000000000); + test__fixtfdi(-0x1.0000000000000p+63, -0x8000000000000000); + test__fixtfdi(-0x1.FFFFFFFFFFFFFp+62, -0x7FFFFFFFFFFFFC00); + test__fixtfdi(-0x1.FFFFFFFFFFFFEp+62, -0x7FFFFFFFFFFFF800); + + test__fixtfdi(-0x1.FFFFFEp+62, -0x7FFFFF8000000000); + test__fixtfdi(-0x1.FFFFFCp+62, -0x7FFFFF0000000000); + + test__fixtfdi(-0x1.000000p+31, -0x80000000); + test__fixtfdi(-0x1.FFFFFFp+30, -0x7FFFFFC0); + test__fixtfdi(-0x1.FFFFFEp+30, -0x7FFFFF80); + test__fixtfdi(-0x1.FFFFFCp+30, -0x7FFFFF00); + + test__fixtfdi(-2.01, -2); + test__fixtfdi(-2.0, -2); + test__fixtfdi(-1.99, -1); + test__fixtfdi(-1.0, -1); + test__fixtfdi(-0.99, 0); + test__fixtfdi(-0.5, 0); + test__fixtfdi(-math.f64_min, 0); + test__fixtfdi(0.0, 0); + test__fixtfdi(math.f64_min, 0); + test__fixtfdi(0.5, 0); + test__fixtfdi(0.99, 0); + test__fixtfdi(1.0, 1); + test__fixtfdi(1.5, 1); + test__fixtfdi(1.99, 1); + test__fixtfdi(2.0, 2); + test__fixtfdi(2.01, 2); + + test__fixtfdi(0x1.FFFFFCp+30, 0x7FFFFF00); + test__fixtfdi(0x1.FFFFFEp+30, 0x7FFFFF80); + test__fixtfdi(0x1.FFFFFFp+30, 0x7FFFFFC0); + test__fixtfdi(0x1.000000p+31, 0x80000000); + + test__fixtfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000); + test__fixtfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000); + + test__fixtfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800); + test__fixtfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00); + test__fixtfdi(0x1.0000000000000p+63, 0x7FFFFFFFFFFFFFFF); + test__fixtfdi(0x1.0000000000001p+63, 0x7FFFFFFFFFFFFFFF); + + test__fixtfdi(0x1.FFFFFFFFFFFFEp+126, 0x7FFFFFFFFFFFFFFF); + test__fixtfdi(0x1.FFFFFFFFFFFFFp+126, 0x7FFFFFFFFFFFFFFF); + test__fixtfdi(0x1.0000000000000p+127, 0x7FFFFFFFFFFFFFFF); + + test__fixtfdi(0x1.FFFFFFFFFFFFFp+1023, 0x7FFFFFFFFFFFFFFF); + test__fixtfdi(0x1.FFFFFFFFFFFFFp+1023, math.maxInt(i64)); + + test__fixtfdi(math.f128_max, math.maxInt(i64)); +} |