if statement - Segmentation Fault (Core Dumped) - C Arguments -

every time run program below in following way: ./a.out -a -b runs properly. if choose run ./a.out -a, result in segmentation fault (core dumped). there way can fix this?

int main(int argc, char *argv[]) {     if (argc > 1)     {         if (strcmp(argv[1],"-a") == 0)         {...         if (strcmp(argv[2],"-b") == 0)         {...}         }     } } 

when run ./a.out -a, 1 argument, should not check strcmp(argv[2],"-b"), because there no third argument, , reading argv[2] result in undefined behavior.

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you can fix adding check before doing strcmp(argv[2],"-b").

int main(int argc, char *argv[]) {     if (argc > 1)     {         if (strcmp(argv[1],"-a") == 0)         {...         if (argc > 2 && strcmp(argv[2],"-b") == 0)         {...}         }     } } 

this looks pretty ugly work.

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