Splitting string into two integers

Question

I have a string range that represents a range, for example:

"7-35"

I am looking for a simple way to split it into two integers int begin and int end.
I already saw this and this, but I am actually searching for some kind of a "one line" command if there exist any.
It is actually the opposite of doing:

sprintf(range,%d-%d,start,end);

Answer 1

The opposite of printing is scanning, and you'd use sscanf():

unsigned int start, end;
if(sscanf(range, "%u-%u", &start, &end) == 2)
  printf("start=%u, end=%u\n", start, end);

Some notes:

• We use unsigned int and %u to make the embedded dash non-ambigous
• Always check the return value to make sure the scanning succeeded

Answer 2

You can use sscanf():

char *ptr = "7-35";
int i,j;
sscanf(ptr, "%d-%d", &i, &j);

Answer 3

#include <stdio.h>

int main (){
  char sentence []="789-35";

  int start;
  int end;

  sscanf (sentence,"%d %*c %d",&start,&end);
  printf ("start:%d\nend: %d\n",start,end);

return 0;
}

I have tested this snippet. It works fine

Answer 4

Whats the opposite of printing? Scanning!

Use sscanf

sscanf(range,"%d %d", &start, &end);