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zig/lib/std/special/compiler_rt/fixdfti_test.zig

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Add add compiler_rt routines for float to signed integer conversion And add std.math.f128_* constants. The routines are: __fixdfdi, __fixdfsi, __fixdfti, __fixsfdi, __fixsfsi, __fixsfti, __fixtfdi, __fixtfsi, __fixtfti. These all call fixint which is a generic zig function that does the conversion: pub fn fixint(comptime fp_t: type, comptime fixint_t: type, a: fp_t) fixint_t There are also a set tests: __fixdfdi_test, __fixdfsi_test, __fixdfti_test, __fixsfdi_test, __fixsfsi_test, __fixsfti_test, __fixtfdi_test, __fixtfsi_test, __fixtfti_test.
2018-12-05 16:50:33 -08:00
const __fixdfti = @import("fixdfti.zig").__fixdfti;
const std = @import("std");
const math = std.math;
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 = std.testing;
Add add compiler_rt routines for float to signed integer conversion And add std.math.f128_* constants. The routines are: __fixdfdi, __fixdfsi, __fixdfti, __fixsfdi, __fixsfsi, __fixsfti, __fixtfdi, __fixtfsi, __fixtfti. These all call fixint which is a generic zig function that does the conversion: pub fn fixint(comptime fp_t: type, comptime fixint_t: type, a: fp_t) fixint_t There are also a set tests: __fixdfdi_test, __fixdfsi_test, __fixdfti_test, __fixsfdi_test, __fixsfsi_test, __fixsfti_test, __fixtfdi_test, __fixtfsi_test, __fixtfti_test.
2018-12-05 16:50:33 -08:00
const warn = std.debug.warn;
fn test__fixdfti(a: f64, expected: i128) void {
const x = __fixdfti(a);
Fix remaining variadic formatted prints Used a series of regex searches to try to find as many instances of the old pattern as I could and update them.
2020-01-09 01:56:38 -08:00
//warn("a={}:{x} x={}:{x} expected={}:{x}:@as(u64, {x})\n", .{a, @bitCast(u64, a), x, x, expected, expected, @bitCast(u128, expected)});
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);
Add add compiler_rt routines for float to signed integer conversion And add std.math.f128_* constants. The routines are: __fixdfdi, __fixdfsi, __fixdfti, __fixsfdi, __fixsfsi, __fixsfti, __fixtfdi, __fixtfsi, __fixtfti. These all call fixint which is a generic zig function that does the conversion: pub fn fixint(comptime fp_t: type, comptime fixint_t: type, a: fp_t) fixint_t There are also a set tests: __fixdfdi_test, __fixdfsi_test, __fixdfti_test, __fixsfdi_test, __fixsfsi_test, __fixsfti_test, __fixtfdi_test, __fixtfsi_test, __fixtfti_test.
2018-12-05 16:50:33 -08:00
}
test "fixdfti" {
Fix remaining variadic formatted prints Used a series of regex searches to try to find as many instances of the old pattern as I could and update them.
2020-01-09 01:56:38 -08:00
//warn("\n", .{});
Add add compiler_rt routines for float to signed integer conversion And add std.math.f128_* constants. The routines are: __fixdfdi, __fixdfsi, __fixdfti, __fixsfdi, __fixsfsi, __fixsfti, __fixtfdi, __fixtfsi, __fixtfti. These all call fixint which is a generic zig function that does the conversion: pub fn fixint(comptime fp_t: type, comptime fixint_t: type, a: fp_t) fixint_t There are also a set tests: __fixdfdi_test, __fixdfsi_test, __fixdfti_test, __fixsfdi_test, __fixsfsi_test, __fixsfti_test, __fixtfdi_test, __fixtfsi_test, __fixtfti_test.
2018-12-05 16:50:33 -08:00
test__fixdfti(-math.f64_max, math.minInt(i128));
test__fixdfti(-0x1.FFFFFFFFFFFFFp+1023, math.minInt(i128));
test__fixdfti(-0x1.FFFFFFFFFFFFFp+1023, -0x80000000000000000000000000000000);
test__fixdfti(-0x1.0000000000000p+127, -0x80000000000000000000000000000000);
test__fixdfti(-0x1.FFFFFFFFFFFFFp+126, -0x7FFFFFFFFFFFFC000000000000000000);
test__fixdfti(-0x1.FFFFFFFFFFFFEp+126, -0x7FFFFFFFFFFFF8000000000000000000);
test__fixdfti(-0x1.0000000000001p+63, -0x8000000000000800);
test__fixdfti(-0x1.0000000000000p+63, -0x8000000000000000);
test__fixdfti(-0x1.FFFFFFFFFFFFFp+62, -0x7FFFFFFFFFFFFC00);
test__fixdfti(-0x1.FFFFFFFFFFFFEp+62, -0x7FFFFFFFFFFFF800);
test__fixdfti(-0x1.FFFFFEp+62, -0x7fffff8000000000);
test__fixdfti(-0x1.FFFFFCp+62, -0x7fffff0000000000);
test__fixdfti(-2.01, -2);
test__fixdfti(-2.0, -2);
test__fixdfti(-1.99, -1);
test__fixdfti(-1.0, -1);
test__fixdfti(-0.99, 0);
test__fixdfti(-0.5, 0);
test__fixdfti(-math.f64_min, 0);
test__fixdfti(0.0, 0);
test__fixdfti(math.f64_min, 0);
test__fixdfti(0.5, 0);
test__fixdfti(0.99, 0);
test__fixdfti(1.0, 1);
test__fixdfti(1.5, 1);
test__fixdfti(1.99, 1);
test__fixdfti(2.0, 2);
test__fixdfti(2.01, 2);
test__fixdfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000);
test__fixdfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000);
test__fixdfti(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800);
test__fixdfti(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00);
test__fixdfti(0x1.0000000000000p+63, 0x8000000000000000);
test__fixdfti(0x1.0000000000001p+63, 0x8000000000000800);
test__fixdfti(0x1.FFFFFFFFFFFFEp+126, 0x7FFFFFFFFFFFF8000000000000000000);
test__fixdfti(0x1.FFFFFFFFFFFFFp+126, 0x7FFFFFFFFFFFFC000000000000000000);
test__fixdfti(0x1.0000000000000p+127, 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);
test__fixdfti(0x1.FFFFFFFFFFFFFp+1023, 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);
test__fixdfti(0x1.FFFFFFFFFFFFFp+1023, math.maxInt(i128));
test__fixdfti(math.f64_max, math.maxInt(i128));
}