zig/lib/std/special/compiler_rt/fixunssfsi_test.zig
Andrew Kelley 4a69b11e74 add license header to all std lib files
add SPDX license identifier
copyright ownership is zig contributors
2020-08-20 16:07:04 -04:00

42 lines
1.3 KiB
Zig

// SPDX-License-Identifier: MIT
// Copyright (c) 2015-2020 Zig Contributors
// This file is part of [zig](https://ziglang.org/), which is MIT licensed.
// The MIT license requires this copyright notice to be included in all copies
// and substantial portions of the software.
const __fixunssfsi = @import("fixunssfsi.zig").__fixunssfsi;
const testing = @import("std").testing;
fn test__fixunssfsi(a: f32, expected: u32) void {
const x = __fixunssfsi(a);
testing.expect(x == expected);
}
test "fixunssfsi" {
test__fixunssfsi(0.0, 0);
test__fixunssfsi(0.5, 0);
test__fixunssfsi(0.99, 0);
test__fixunssfsi(1.0, 1);
test__fixunssfsi(1.5, 1);
test__fixunssfsi(1.99, 1);
test__fixunssfsi(2.0, 2);
test__fixunssfsi(2.01, 2);
test__fixunssfsi(-0.5, 0);
test__fixunssfsi(-0.99, 0);
test__fixunssfsi(-1.0, 0);
test__fixunssfsi(-1.5, 0);
test__fixunssfsi(-1.99, 0);
test__fixunssfsi(-2.0, 0);
test__fixunssfsi(-2.01, 0);
test__fixunssfsi(0x1.000000p+31, 0x80000000);
test__fixunssfsi(0x1.000000p+32, 0xFFFFFFFF);
test__fixunssfsi(0x1.FFFFFEp+31, 0xFFFFFF00);
test__fixunssfsi(0x1.FFFFFEp+30, 0x7FFFFF80);
test__fixunssfsi(0x1.FFFFFCp+30, 0x7FFFFF00);
test__fixunssfsi(-0x1.FFFFFEp+30, 0);
test__fixunssfsi(-0x1.FFFFFCp+30, 0);
}