(C++) memcmp

include <iostream>

include <cstdio>

include <cstring>


int main ()
{
  const int bufferSize = 256;
  char str1[bufferSize];
  char str2[bufferSize];
  
  std::cout << "Enter sentence #1: \n";
  gets(str1);
  std::cout << "Enter sentence #2: \n";
  gets(str2);
  const int length1 = std::strlen(str1);
  const int length2 = std::strlen(str2);
  const int comparison = std::memcmp (str1, str2, std::max(length1,length2));
  if (comparison>0) 
  {
    std::cout << str1 << " is greater than " << str2 << std::endl;
  }
  else if (comparison<0) 
  {
    std::cout << str1 << " is less than " << str2 << std::endl;
  }
  else 
  {
    std::cout << str1 << " is equal to " << str2 << std::endl;
  }
}

'memcmp' links

• C

Reference

• 1) C++ International Standard. ISO/IEC 14882. Second edition. Table 99
• 2) Herb Sutter and Andrei Alexandrescu. C++ coding standards: 101 rules, guidelines, and best practices. ISBN: 0-32-111358-6, chapter 96: don't memcpy and memcmp non-POD's