Zig 0.17.0-dev (Split by item)

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__strcat_chk

ssp.__strcat_chk

fn __strcat_chk(dest: [*:0]u8, src: [*:0]const u8, dest_n: usize) callconv(.c) [*:0]u8

File

lib/compiler_rt/ssp.zig:81

Code

fn __strcat_chk(dest: [*:0]u8, src: [*:0]const u8, dest_n: usize) callconv(.c) [*:0]u8 {
    @setRuntimeSafety(false);

    var avail = dest_n;

    var dest_end: usize = 0;
    while (avail > 0 and dest[dest_end] != 0) : (dest_end += 1) {
        avail -= 1;
    }

    if (avail < 1) __chk_fail();

    var i: usize = 0;
    while (avail > 0 and src[i] != 0) : (i += 1) {
        dest[dest_end + i] = src[i];
        avail -= 1;
    }

    if (avail < 1) __chk_fail();

    dest[dest_end + i] = 0;

    return dest;
}