Zig 0.17.0-dev (Split by item)

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hexToBytes

ml_dsa.hexToBytes

fn hexToBytes(comptime hex: []const u8, out: []u8) !void

File

lib/std/crypto/ml_dsa.zig:3075

Code

fn hexToBytes(comptime hex: []const u8, out: []u8) !void {
    if (hex.len != out.len * 2) return error.InvalidLength;

    var i: usize = 0;
    while (i < out.len) : (i += 1) {
        const hi = try std.fmt.charToDigit(hex[i * 2], 16);
        const lo = try std.fmt.charToDigit(hex[i * 2 + 1], 16);
        out[i] = (hi << 4) | lo;
    }
}