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pow10

log10.pow10

fn pow10(comptime y: comptime_int) comptime_int

File

lib/std/math/log10.zig:78

Code

fn pow10(comptime y: comptime_int) comptime_int {
    if (y == 0) return 1;

    var squaring = 0;
    var s = 1;

    while (s <= y) : (s <<= 1) {
        squaring += 1;
    }

    squaring -= 1;

    var result = 10;

    for (0..squaring) |_| {
        result *= result;
    }

    const rest_exp = y - (1 << squaring);

    return result * pow10(rest_exp);
}