User talk:2001:8A0:D9CB:FB00:C5C0:6495:F7FA:993F

Per:

implementations of the C language do now allow nested procedures to any depth in direct contradiction of the opening paragraph of this article. I use them all the time. Please fix the opening paragraph to note that Pascal led the way in nested procedures ( I learned them first on ETH Pascal) but that other languages have now caught up with this useful capability.