Removing contents of variable in C -

i want delete contents of int variable when gets else statement.

the program requests number between 1 , 5 using scanf , number stored in int variable , if number isn't between 1 , 5 user directed else statement , have used goto statement take start , wondering how removed contents of variable during else statement don't create continuos loop.

with getchar it's fpurge(stdin). i'm running mac os x.

below code:

include

int main (int argc, const char * argv[]) {

int code; 

start:

puts("please type error code."); puts("range 1-5: "); scanf("%d", &code);  switch(code) {     case 1:         printf("information\n");     case 2:         printf("information\n");     case 3:         printf("information\n");     case 4:         printf("information\n");     case 5:         printf("information\n");     default:         printf("information\n");         goto start; } 

}

you looking do...while loop

edit don't forget break statements!!

do {     puts("please type error code.");     puts("range 1-5: ");     scanf("%d", &code);        switch(code)     {         case 1:             printf("information\n");             break;          case 2:             printf("information\n");             break;          case 3:             printf("information\n");             break;          case 4:             printf("information\n");             break;          case 5:             printf("information\n");             break;          default:             printf("invalid code\n");break;     }  } while(code<1 || code> 5);