c - Check the command line arguments for a negative number -


i trying figure out how detect negative numbers in argc (in c).

code:

int main(int argc, char *argv[]){     printf("\n");     for(int = 0; < argc; i++){         printf("%s\n", argv[i]); //print typed in command line (arguments)         //do if statement here? if less zero, great.     }  }

i thinking struggling if statement (hopefully on track). suggestion? thanks.

the output expecting:

$ ./a.out 5 4 6 3 5 -5 5 4 6 3 5 -5 sorry, have negative value.

then quit program.

thanks.

just add condition before printf statement in loop 

if(argv[i][0] == '-') {       printf("sorry, have negative value. \n");     exit (0); }

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