mirror of
https://github.com/ziglang/zig.git
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5619ce2406
Conflicts:
* doc/langref.html.in
* lib/std/enums.zig
* lib/std/fmt.zig
* lib/std/hash/auto_hash.zig
* lib/std/math.zig
* lib/std/mem.zig
* lib/std/meta.zig
* test/behavior/alignof.zig
* test/behavior/bitcast.zig
* test/behavior/bugs/1421.zig
* test/behavior/cast.zig
* test/behavior/ptrcast.zig
* test/behavior/type_info.zig
* test/behavior/vector.zig
Master branch added `try` to a bunch of testing function calls, and some
lines also had changed how to refer to the native architecture and other
`@import("builtin")` stuff.
44 lines
965 B
Zig
44 lines
965 B
Zig
const expect = @import("std").testing.expect;
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test "@popCount" {
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comptime try testPopCount();
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try testPopCount();
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}
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fn testPopCount() !void {
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{
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var x: u32 = 0xffffffff;
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try expect(@popCount(u32, x) == 32);
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}
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{
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var x: u5 = 0x1f;
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try expect(@popCount(u5, x) == 5);
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}
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{
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var x: u32 = 0xaa;
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try expect(@popCount(u32, x) == 4);
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}
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{
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var x: u32 = 0xaaaaaaaa;
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try expect(@popCount(u32, x) == 16);
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}
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{
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var x: u32 = 0xaaaaaaaa;
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try expect(@popCount(u32, x) == 16);
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}
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{
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var x: i16 = -1;
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try expect(@popCount(i16, x) == 16);
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}
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{
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var x: i8 = -120;
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try expect(@popCount(i8, x) == 2);
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}
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comptime {
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try expect(@popCount(u8, @bitCast(u8, @as(i8, -120))) == 2);
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}
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comptime {
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try expect(@popCount(i128, 0b11111111000110001100010000100001000011000011100101010001) == 24);
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}
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}
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