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zig/std/special/compiler_rt/fixunsdfsi_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 __fixunsdfsi = @import("fixunsdfsi.zig").__fixunsdfsi;
move std/debug.zig to a subdirectory self hosted compiler parser tests do some fuzz testing
2017-12-23 19:08:53 -08:00
const assert = @import("../../index.zig").debug.assert;
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__fixunsdfsi(a: f64, expected: u32) 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 = __fixunsdfsi(a);
assert(x == expected);
}
test "fixunsdfsi" {
test__fixunsdfsi(0.0, 0);
test__fixunsdfsi(0.5, 0);
test__fixunsdfsi(0.99, 0);
test__fixunsdfsi(1.0, 1);
test__fixunsdfsi(1.5, 1);
test__fixunsdfsi(1.99, 1);
test__fixunsdfsi(2.0, 2);
test__fixunsdfsi(2.01, 2);
test__fixunsdfsi(-0.5, 0);
test__fixunsdfsi(-0.99, 0);
test__fixunsdfsi(-1.0, 0);
test__fixunsdfsi(-1.5, 0);
test__fixunsdfsi(-1.99, 0);
test__fixunsdfsi(-2.0, 0);
test__fixunsdfsi(-2.01, 0);
test__fixunsdfsi(0x1.000000p+31, 0x80000000);
test__fixunsdfsi(0x1.000000p+32, 0xFFFFFFFF);
test__fixunsdfsi(0x1.FFFFFEp+31, 0xFFFFFF00);
test__fixunsdfsi(0x1.FFFFFEp+30, 0x7FFFFF80);
test__fixunsdfsi(0x1.FFFFFCp+30, 0x7FFFFF00);
test__fixunsdfsi(-0x1.FFFFFEp+30, 0);
test__fixunsdfsi(-0x1.FFFFFCp+30, 0);
test__fixunsdfsi(0x1.FFFFFFFEp+31, 0xFFFFFFFF);
test__fixunsdfsi(0x1.FFFFFFFC00000p+30, 0x7FFFFFFF);
test__fixunsdfsi(0x1.FFFFFFF800000p+30, 0x7FFFFFFE);
}