segmentation-fault

A segmentation fault is when your program attempts to access memory it has either not been assigned by the operating system, or is otherwise not allowed to access. “segmentation” is the concept of each process on your computer having its own distinct virtual address space. Thus, when Process A reads memory location 0x877, it reads … Read more

Wikipedia has the answer, along with a number of other sources. A segfault basically means you did something bad with pointers. This is probably a segfault: char *c = NULL; … *c; // dereferencing a NULL pointer Or this: char *c = “Hello”; … c[10] = ‘z’; // out of bounds, or in this case, … Read more