Making C compatible with C++

C++ namemangling.

• K&R declarations are NOT allowed!
• C++ allows the same function name with different arguments.
• Must specially prototype C functions in headers to link them with C++ programs

  #ifdef __cplusplus
  extern "C" {
  #endif
  /* Put your prototypes here */
  int foo(int arg1, int arg2);
  #ifdef __cplusplus
  }
  #endif
  

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