Getting Segmentation Fault

Question

I saw many questions about getting segmentation fault in C program here in SO, and I thought it would be great to have a reference to those here, a question

Answer 1

1. Undefined Behaviour: trying to change a string literal
2. Undefined Behaviour: writing past the end of the array
3. Undefined Bahaviour: passing to free() a pointer not obtained through malloc()
4. Undefined Behaviour: passing to free() an invalid pointer
5. Undefined Behaviour: incompatabilities between the printf() format specifier and actual argument types
6. Undefined Behaviour: passing to free() an invalid pointer

Undefined Behaviour can manifest itself by a "segmentation fault", but that is by no means a required outcome. Anything could have happened :)