Function upperString [src]

Writes an upper case copy of ascii_string to output. Asserts output.len >= ascii_string.len.

Prototype

pub fn upperString(output: []u8, ascii_string: []const u8) []u8

Parameters

output: []u8ascii_string: []const u8

Example

 test upperString {
    var buf: [1024]u8 = undefined;
    const result = upperString(&buf, "aBcDeFgHiJkLmNOPqrst0234+💩!");
    try std.testing.expectEqualStrings("ABCDEFGHIJKLMNOPQRST0234+💩!", result);
}

Source

  pub fn upperString(output: []u8, ascii_string: []const u8) []u8 {
    std.debug.assert(output.len >= ascii_string.len);
    for (ascii_string, 0..) |c, i| {
        output[i] = toUpper(c);
    }
    return output[0..ascii_string.len];
}  