Zig 0.17.0-dev (Split by item)

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readPositionalAll

Equivalent to creating a positional reader and reading multiple times to fill buffer.

Returns number of bytes read into buffer. If less than buffer.len, end of file occurred.

File

lib/std/Io/File.zig:573

Code

pub fn readPositionalAll(file: File, io: Io, buffer: []u8, offset: u64) ReadPositionalError!usize {
    var index: usize = 0;
    while (index != buffer.len) {
        const amt = try file.readPositional(io, &.{buffer[index..]}, offset + index);
        if (amt == 0) break;
        index += amt;
    }
    return index;
}