Nested function in C

Question

Can we have a nested function in C? What is the use of nested functions? If they exist in C does their implementation differ from compiler to compiler?

Answer 1

I mention this as many people coding in C are now using C++ compilers (such as Visual C++ and Keil uVision) to do it, so you may be able to make use of this...

Although not yet permitted in C, if you're using C++, you can achieve the same effect with the lambda functions introduced in C++11:

void f()
{
    auto g = [] () { /* Some functionality */ }

    g();
}