Zig 0.17.0-dev (Split by item)

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hex

Converts an unsigned integer of any multiple of u8 to an array of lowercase hex bytes, little endian.

fmt.hex

pub fn hex(x: anytype) [@typeInfo(@TypeOf(x)).int.bits / 4]u8

File

lib/std/fmt.zig:1335

Code

pub fn hex(x: anytype) [@typeInfo(@TypeOf(x)).int.bits / 4]u8 {
    comptime assert(@typeInfo(@TypeOf(x)).int.signedness == .unsigned);
    var result: [@typeInfo(@TypeOf(x)).int.bits / 4]u8 = undefined;
    var i: usize = 0;
    while (i < result.len / 2) : (i += 1) {
        const byte: u8 = @truncate(x >> @intCast(8 * i));
        result[i * 2 + 0] = hex_charset[byte >> 4];
        result[i * 2 + 1] = hex_charset[byte & 15];
    }
    return result;
}