serror.h

SERROR makes errors in C syntactically similar to other languages, implementing try & catch blocks and is achieved using setjmp(). This helps fix the "return hell" you can get with a simpler error handling solution. The SIMPLE_ERROR(status, ...) macro is used to throw errors, and is even thread-safe for __USE_ISOC11.

Define SIMPLE_MAXERRORS to change the max consecutive errors you can throw, and SIMPLE_QUITE to silence SIMPLE_ERRORs.

Example:

// helloworld.c
#include <stdio.h>
#include "serror.h"

void try() {
    puts("lo ");
    SIMPLE_ERROR(1, "Wor");
    puts("never called\n");
}

int main() {
    int errCode;
    SIMPLE_TRY(errCode)
        puts("Hel");
        try();
    SIMPLE_CATCH
        puts("ld!");
    SIMPLE_TRYEND

    SIMPLE_ERROR(1, "\n");

    puts("never called\n");
    return 0;
}

Some minor inconveniences include:

return or other control-flow statements that leave the current scope cannot be used in the SIMPLE_TRY or SIMPLE_CATCH scopes.
max of 32 depth (define SIMPLE_MAXERRORS), avoid using recursively.

CPunch/SError

serror.h