//
// Program:  string_length
//
// Purpose:  test function for finding length of a text
//   string.
//
// Input:
//   A text string.
// Output:
//   The length of the string, not including the ending
//   null character.
//
// (This function is functionally equivalent to the library
// function strlen().)
//

#include <iostream.h>
#include <stdlib.h>		// has EXIT_SUCCESS
#include <iomanip.h>		// has setw()

// Function to compute length of a text string.
// Pre:  s contains a null-terminated text string.
// Post:  length of s (number of characters up to but not
//          including null character) is returned.
int length(char s[])
{
  int l = 0;
  while (s[l] != '\0')
    ++l;
  return l;
}

// Main program.
int main(void)
{
  const int BUFFSIZE = 1000;
  char aString[BUFFSIZE];
  cout << "Enter a text string:  ";
  cin >> setw(BUFFSIZE) >> aString;
  cout << "The length of " << aString << " is "
       << length(aString) << endl;
  return EXIT_SUCCESS;
}