diff options
Diffstat (limited to 'lib/std/special/compiler_rt/floatfmodq_test.zig')
| -rw-r--r-- | lib/std/special/compiler_rt/floatfmodq_test.zig | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/std/special/compiler_rt/floatfmodq_test.zig b/lib/std/special/compiler_rt/floatfmodq_test.zig new file mode 100644 index 0000000000..a272b797e3 --- /dev/null +++ b/lib/std/special/compiler_rt/floatfmodq_test.zig @@ -0,0 +1,46 @@ +const std = @import("std"); +const fmodq = @import("floatfmodq.zig"); +const testing = std.testing; + +fn test_fmodq(a: f128, b: f128, exp: f128) !void { + const res = fmodq.fmodq(a, b); + try testing.expect(exp == res); +} + +fn test_fmodq_nans() !void { + try testing.expect(std.math.isNan(fmodq.fmodq(1.0, std.math.nan(f128)))); + try testing.expect(std.math.isNan(fmodq.fmodq(1.0, -std.math.nan(f128)))); + try testing.expect(std.math.isNan(fmodq.fmodq(std.math.nan(f128), 1.0))); + try testing.expect(std.math.isNan(fmodq.fmodq(-std.math.nan(f128), 1.0))); +} + +fn test_fmodq_infs() !void { + try testing.expect(fmodq.fmodq(1.0, std.math.inf(f128)) == 1.0); + try testing.expect(fmodq.fmodq(1.0, -std.math.inf(f128)) == 1.0); + try testing.expect(std.math.isNan(fmodq.fmodq(std.math.inf(f128), 1.0))); + try testing.expect(std.math.isNan(fmodq.fmodq(-std.math.inf(f128), 1.0))); +} + +test "fmodq" { + try test_fmodq(6.8, 4.0, 2.8); + try test_fmodq(6.8, -4.0, 2.8); + try test_fmodq(-6.8, 4.0, -2.8); + try test_fmodq(-6.8, -4.0, -2.8); + try test_fmodq(3.0, 2.0, 1.0); + try test_fmodq(-5.0, 3.0, -2.0); + try test_fmodq(3.0, 2.0, 1.0); + try test_fmodq(1.0, 2.0, 1.0); + try test_fmodq(0.0, 1.0, 0.0); + try test_fmodq(-0.0, 1.0, -0.0); + try test_fmodq(7046119.0, 5558362.0, 1487757.0); + try test_fmodq(9010357.0, 1957236.0, 1181413.0); + + // Denormals + const a: f128 = 0xedcb34a235253948765432134674p-16494; + const b: f128 = 0x5d2e38791cfbc0737402da5a9518p-16494; + const exp: f128 = 0x336ec3affb2db8618e4e7d5e1c44p-16494; + try test_fmodq(a, b, exp); + + try test_fmodq_nans(); + try test_fmodq_infs(); +} |
