25 lines
485 B
Zig
25 lines
485 B
Zig
const assert = @import("std").debug.assert;
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test "@popCount" {
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comptime testPopCount();
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testPopCount();
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}
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fn testPopCount() void {
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{
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var x: u32 = 0xaa;
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assert(@popCount(x) == 4);
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}
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{
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var x: u32 = 0xaaaaaaaa;
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assert(@popCount(x) == 16);
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}
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{
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var x: i16 = -1;
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assert(@popCount(x) == 16);
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}
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comptime {
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assert(@popCount(0b11111111000110001100010000100001000011000011100101010001) == 24);
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}
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}
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