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This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig standard library. Private Function

resize

Doc Source

Private Function

std.heap.SafeAllocator.FuzzMultiThreadedAllocator.resize

fn resize(ctx: *anyopaque, memory: []u8, _: Alignment, new_len: usize, _: usize) bool

Params

ctx: *anyopaque
memory: []u8
_: Alignment
new_len: usize
_: usize

File

heap/SafeAllocator.zig:1947

    fn resize(ctx: *anyopaque, memory: []u8, _: Alignment, new_len: usize, _: usize) bool {
        @disableInstrumentation();

        const f: *FuzzMultiThreadedAllocator = @ptrCast(@alignCast(ctx));
        const start = memory.ptr - f.buf.ptr;
        const old_end = start + memory.len;
        const new_end = start +| new_len;
        if (new_end > f.buf.len or f.maybeFail()) {
            return false;
        }

        if (new_len <= memory.len) {
            // The fill is not decreased so memory is not reused.
            return true;
        }

        return @cmpxchgStrong(usize, &f.fill, old_end, new_end, .monotonic, .monotonic) == null;
    }