strchr - returns a pointer to the first occurrence of ch in str or a null pointer if not found in C

//Declaration:  char *strchr(const char *str, int ch); 
//Return:       returns a pointer to the first occurrence of ch in *str or a null pointer if not found.  
  

  #include <stdio.h>
  #include <string.h>
  int main(void)
  {
    char *p;

    p = strchr("this is a test", ' ');
    printf(p);

    return 0;
  }

         
/*
 is a test*/