Zig 0.17.0-dev (Split by item)

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writableVector

Reader.writableVector

pub fn writableVector(r: *Reader, buffer: [][]u8, data: []const []u8) Error!struct

File

lib/std/Io/Reader.zig:2045

Code

pub fn writableVector(r: *Reader, buffer: [][]u8, data: []const []u8) Error!struct { usize, usize } {
    var i: usize = 0;
    var n: usize = 0;
    if (r.seek == r.end) {
        for (data) |buf| {
            if (buffer.len - i == 0) return .{ i, n };
            if (buf.len != 0) {
                buffer[i] = buf;
                i += 1;
                n += buf.len;
            }
        }
        if (r.buffer.len != 0) {
            r.seek = 0;
            r.end = 0;
            buffer[i] = r.buffer;
            i += 1;
        }
    } else {
        buffer[i] = r.buffer[r.end..];
        i += 1;
    }
    return .{ i, n };
}