Error Handling in C

Error Handling in C — a practical guide to C error handling with clear examples you can reuse in real projects.

C Programming Tutorial Series (85/102). Prefer one article? Read the complete C programming tutorial.

Short description

Check every allocation and I/O operation that can fail.

Error pattern

FILE *fp = fopen(path, "r");
if (!fp) {
    perror("fopen");
    return 1;
}