HeaderSection : EndHeaderSection

HeaderSection
  ! NativeCode
EndHeaderSection

For advanced programmers. HeaderSection : EndHeaderSection allows to insert native code directly in the generated code output, in the header section (outside of any function). The native code which can be inserted depends on the compiler backend used:

- If the C backend is used, C code needs to be inserted.
- If the x86 backend is used, x86 asm code needs to be inserted.
- If the x64 backend is used, x64 asm code needs to be inserted.

This command can be useful to automatically tune the generated code output or to insert some raw code into the final executable.

Example

  CompilerIf #PB_Compiler_Backend <> #PB_Backend_C
    CompilerError "This sample only works with C backend"
  CompilerEndIf

  HeaderSection
    void customPrint()
    {
      printf("%s, %s!\n", "Hello", "World");
    }
  EndHeaderSection
  
  ; Assign the custom function to a PureBasic variable so we can use it
  ;
  PrototypeC CustomPrintProto()
  CustomPrint.CustomPrintProto
  !v_customprint = customPrint;
  
  OpenConsole()
  
  ; Use the native function !
  CustomPrint()
  
  Input()