What is the meaning of “wild pointer” in C?

Question

Can anybody tell me, the meaning of wild pointer in C, how to obtain it and is this available in C++?

Answer 1

A wild pointer in C is a pointer that has not been initialised prior to its first use. From Wikipedia:

Wild pointers are created by omitting necessary initialization prior to first use. Thus, strictly speaking, every pointer in programming languages which do not enforce initialization begins as a wild pointer.

This most often occurs due to jumping over the initialization, not by omitting it. Most compilers are able to warn about this.

eg

int f(int i)
{
    char* dp;    //dp is a wild pointer
    ...
}