zig/lib/std/special/compiler_rt/floatundidf_test.zig

51 lines
2.6 KiB
Zig

const __floatundidf = @import("floatundidf.zig").__floatundidf;
const testing = @import("std").testing;
fn test__floatundidf(a: u64, expected: f64) void {
const r = __floatundidf(a);
testing.expect(r == expected);
}
test "floatundidf" {
test__floatundidf(0, 0.0);
test__floatundidf(1, 1.0);
test__floatundidf(2, 2.0);
test__floatundidf(20, 20.0);
test__floatundidf(0x7FFFFF8000000000, 0x1.FFFFFEp+62);
test__floatundidf(0x7FFFFFFFFFFFF800, 0x1.FFFFFFFFFFFFEp+62);
test__floatundidf(0x7FFFFF0000000000, 0x1.FFFFFCp+62);
test__floatundidf(0x7FFFFFFFFFFFF000, 0x1.FFFFFFFFFFFFCp+62);
test__floatundidf(0x8000008000000000, 0x1.000001p+63);
test__floatundidf(0x8000000000000800, 0x1.0000000000001p+63);
test__floatundidf(0x8000010000000000, 0x1.000002p+63);
test__floatundidf(0x8000000000001000, 0x1.0000000000002p+63);
test__floatundidf(0x8000000000000000, 0x1p+63);
test__floatundidf(0x8000000000000001, 0x1p+63);
test__floatundidf(0x0007FB72E8000000, 0x1.FEDCBAp+50);
test__floatundidf(0x0007FB72EA000000, 0x1.FEDCBA8p+50);
test__floatundidf(0x0007FB72EB000000, 0x1.FEDCBACp+50);
test__floatundidf(0x0007FB72EBFFFFFF, 0x1.FEDCBAFFFFFFCp+50);
test__floatundidf(0x0007FB72EC000000, 0x1.FEDCBBp+50);
test__floatundidf(0x0007FB72E8000001, 0x1.FEDCBA0000004p+50);
test__floatundidf(0x0007FB72E6000000, 0x1.FEDCB98p+50);
test__floatundidf(0x0007FB72E7000000, 0x1.FEDCB9Cp+50);
test__floatundidf(0x0007FB72E7FFFFFF, 0x1.FEDCB9FFFFFFCp+50);
test__floatundidf(0x0007FB72E4000001, 0x1.FEDCB90000004p+50);
test__floatundidf(0x0007FB72E4000000, 0x1.FEDCB9p+50);
test__floatundidf(0x023479FD0E092DC0, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DA1, 0x1.1A3CFE870496Dp+57);
test__floatundidf(0x023479FD0E092DB0, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DB8, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DB6, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DBF, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DC1, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DC7, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DC8, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DCF, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DD0, 0x1.1A3CFE870496Ep+57);
test__floatundidf(0x023479FD0E092DD1, 0x1.1A3CFE870496Fp+57);
test__floatundidf(0x023479FD0E092DD8, 0x1.1A3CFE870496Fp+57);
test__floatundidf(0x023479FD0E092DDF, 0x1.1A3CFE870496Fp+57);
test__floatundidf(0x023479FD0E092DE0, 0x1.1A3CFE870496Fp+57);
}