Function allocWithOptionsRetAddr [src]

Prototype

 pub fn allocWithOptionsRetAddr( self: Allocator, comptime Elem: type, n: usize, comptime optional_alignment: ?u29, comptime optional_sentinel: ?Elem, return_address: usize, ) Error!AllocWithOptionsPayload(Elem, optional_alignment, optional_sentinel)

Parameters

self: AllocatorElem: typen: usize

optional_alignment: ?u29null means naturally aligned

optional_sentinel: ?Elemreturn_address: usize

Possible Errors

OutOfMemory

Source

  pub fn allocWithOptionsRetAddr(
    self: Allocator,
    comptime Elem: type,
    n: usize,
    /// null means naturally aligned
    comptime optional_alignment: ?u29,
    comptime optional_sentinel: ?Elem,
    return_address: usize,
) Error!AllocWithOptionsPayload(Elem, optional_alignment, optional_sentinel) {
    if (optional_sentinel) |sentinel| {
        const ptr = try self.allocAdvancedWithRetAddr(Elem, optional_alignment, n + 1, return_address);
        ptr[n] = sentinel;
        return ptr[0..n :sentinel];
    } else {
        return self.allocAdvancedWithRetAddr(Elem, optional_alignment, n, return_address);
    }
}  