NAME

get_int - prompts user for a line of text from stdin and returns the equivalent int

SYNOPSIS

#include <cs50.h>
int get_int(const char *format, ...);

DESCRIPTION

Prompts user for a line of text from standard input and returns the equivalent int; if text does not represent an int or would cause overflow, user is reprompted.

The prompt is formatted like printf(3).

RETURN VALUE

Returns the int equivalent to the line read from stdin in [INT_MIN, INT_MAX). If line can’t be read, returns INT_MAX.

EXAMPLE

 /**
  * Returns the sum of two ints read from stdin, or INT_MAX if there was an error.
  */
  int add_ints(void)
  {
      // read int from stdin
      int i = get_int("Enter an int: ");

      // make sure we read one successfully
      if (i == INT_MAX)
      {
          return INT_MAX;
      }

      int j = get_int("What do you want to add %d to? ", i);

      if (j == INT_MAX)
      {
          return INT_MAX;
      }

      return i + j;

  }

SEE ALSO

get_char(3), get_double(3), get_float(3), get_long(3), get_string(3), printf(3)