C++ (idea)

The following are different ways to say "add one to variable c" in various programming languages.
They assume that you are not working near the limits of the datatype: that you are using either relatively small numbers (i.e. not close to 2³¹ on a 32-bit system) or bignum (arbitrary precision integer) variables.

• C, C++, Java™, or C#: c++; or ++c; or c += 1; or c = c + 1; (ES helped)
1;
• Old Basic: let c = c + 1
• New Basic: c = c + 1
• HyperTalk: add 1 to c
• COBOL: add 1 to c giving c
• 6502 assembly language: inc c
• Scheme: (set! c (+ 1 c))
• Tcl: [incr C]
• Maple: c := c + 1;

• Pascal: c := c + 1; (from silencio)
• Ada 95: c = c + 1; (from silencio)
• Borland Pascal and Delphi: c := c + 1; or inc(c); (StrawberryFrog)
• Java with java.math.BigInteger: c.add(BigInteger.valueof(1)); or (in 1.2 or later) c.add(BigInteger.ONE); (from N-Wing)
• Forth: C @ 1 + C ! (think "C fetch 1 add C store") (from ariels). "If you want to keep the value of C on the stack (i.e. "C++" as opposed to "++C"), you'd of course just say C @ DUP 1 + C !".

#include <iostream>
using std::cout;

int main()
{
  cout << "Hello world" << endl;
  return 0;
}