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zig/lib/std/special/compiler_rt/fixunssfdi_test.zig

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compiler_rt implementations for __fixuns* functions * add u128 and i128 integer types * add f128 floating point type * implement big integer multiplication (See #405)
2017-08-16 16:07:35 -07:00
const __fixunssfdi = @import("fixunssfdi.zig").__fixunssfdi;
std.debug.assert: remove special case for test builds Previously, std.debug.assert would `@panic` in test builds, if the assertion failed. Now, it's always `unreachable`. This makes release mode test builds more accurately test the actual code that will be run. However this requires tests to call `std.testing.expect` rather than `std.debug.assert` to make sure output is correct. Here is the explanation of when to use either one, copied from the assert doc comments: Inside a test block, it is best to use the `std.testing` module rather than assert, because assert may not detect a test failure in ReleaseFast and ReleaseSafe mode. Outside of a test block, assert is the correct function to use. closes #1304
2019-02-08 15:18:47 -08:00
const testing = @import("std").testing;
compiler_rt implementations for __fixuns* functions * add u128 and i128 integer types * add f128 floating point type * implement big integer multiplication (See #405)
2017-08-16 16:07:35 -07:00
syntax: functions require return type. remove `->` The purpose of this is: * Only one way to do things * Changing a function with void return type to return a possible error becomes a 1 character change, subtly encouraging people to use errors. See #632 Here are some imperfect sed commands for performing this update: remove arrow: ``` sed -i 's/\(\bfn\b.*\)-> /\1/g' $(find . -name "*.zig") ``` add void: ``` sed -i 's/\(\bfn\b.*\))\s*{/\1) void {/g' $(find ../ -name "*.zig") ``` Some cleanup may be necessary, but this should do the bulk of the work.
2018-01-25 01:10:11 -08:00
fn test__fixunssfdi(a: f32, expected: u64) void {
compiler_rt implementations for __fixuns* functions * add u128 and i128 integer types * add f128 floating point type * implement big integer multiplication (See #405)
2017-08-16 16:07:35 -07:00
const x = __fixunssfdi(a);
std.debug.assert: remove special case for test builds Previously, std.debug.assert would `@panic` in test builds, if the assertion failed. Now, it's always `unreachable`. This makes release mode test builds more accurately test the actual code that will be run. However this requires tests to call `std.testing.expect` rather than `std.debug.assert` to make sure output is correct. Here is the explanation of when to use either one, copied from the assert doc comments: Inside a test block, it is best to use the `std.testing` module rather than assert, because assert may not detect a test failure in ReleaseFast and ReleaseSafe mode. Outside of a test block, assert is the correct function to use. closes #1304
2019-02-08 15:18:47 -08:00
testing.expect(x == expected);
compiler_rt implementations for __fixuns* functions * add u128 and i128 integer types * add f128 floating point type * implement big integer multiplication (See #405)
2017-08-16 16:07:35 -07:00
}
test "fixunssfdi" {
test__fixunssfdi(0.0, 0);
test__fixunssfdi(0.5, 0);
test__fixunssfdi(0.99, 0);
test__fixunssfdi(1.0, 1);
test__fixunssfdi(1.5, 1);
test__fixunssfdi(1.99, 1);
test__fixunssfdi(2.0, 2);
test__fixunssfdi(2.01, 2);
test__fixunssfdi(-0.5, 0);
test__fixunssfdi(-0.99, 0);
test__fixunssfdi(-1.0, 0);
test__fixunssfdi(-1.5, 0);
test__fixunssfdi(-1.99, 0);
test__fixunssfdi(-2.0, 0);
test__fixunssfdi(-2.01, 0);
test__fixunssfdi(0x1.FFFFFEp+63, 0xFFFFFF0000000000);
test__fixunssfdi(0x1.000000p+63, 0x8000000000000000);
test__fixunssfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000);
test__fixunssfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000);
test__fixunssfdi(-0x1.FFFFFEp+62, 0x0000000000000000);
test__fixunssfdi(-0x1.FFFFFCp+62, 0x0000000000000000);
}