Zig 0.17.0-dev (Split by item)

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Log2IntCeil

Returns an unsigned int type that can hold the number of bits in T.

math.Log2IntCeil

pub fn Log2IntCeil(comptime T: type) type

File

lib/std/math.zig:791

Code

pub fn Log2IntCeil(comptime T: type) type {
    // comptime ceil log2
    if (T == comptime_int) return comptime_int;
    const bits: u16 = @typeInfo(T).int.bits;
    const log2_bits = 16 - @clz(bits);
    return @Int(.unsigned, log2_bits);
}