Question

I know how to search for strings in C. I use a for loop then a strstr function to determine if there is any occurrences. But now I have int numbers than i want to search for. I did find couple of examples on internet but all those search for the exact number, which I dont want.
I need to search like “20” and if there is a number “2010” it should display it.

How can I do that in c?

Answer 1

Maybe I’m missing the point… but why not just keep using strstr?

int main(){
   char tmpbookyear [] = "this year is 2010";
   char searchCriteria [] = "20";
   char *result;

   if((result = strstr (tmpbookyear, searchCriteria)) != NULL)
       printf ("Returned String: %s\n", result);
   else
       printf("GOT A NULL\n");
}

mike@linux-4puc:~> gcc test.c
mike@linux-4puc:~> ./a.out 
Returned String: 2010

I need to search like "20" and if there is a number "2010" it should display it.
That’s what you want it to do right?

EDIT:

char year[] = "2012"; 
char search[] = "2";
if(strstr(year, search) != NULL) 
    { printf("result is %s\n",strstr(year, search)); }

mike@linux-4puc:~> gcc test.c
mike@linux-4puc:~> ./a.out 
result is 2012