Re: Using onOutOfMemoryError in C wrappers

[Basile B. via Digitalmars-d-learn]

On Wednesday, 24 March 2021 at 07:58:22 UTC, Per Nordlöw wrote:
When wrapping C code that tries to allocate memory resources 
via functions such as

    X* X_create();

should one call `onOutOfMemoryError();` upon null return?

Making more D wrappers `nothrow @nogc`.


There are several ways to do that. In addition to 
onOutOfMemoryError, you can use a static instance or `if (somePtr 
is null) assert(0);`

  void v() @nogc nothrow
  {
    __gshared oom = new OutOfMemoryError();
    auto X* = X_create();
    if (X is null)
        throw oom;
  }