Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

                                             ◄Up► ◄Contents► ◄Index► ◄Back►
─────C/C++ Compiler─────────────────────────────────────────────────────────
 
     Syntax:  /Gn
 
     The /Gn option lets you remove the native-code entry point from
     the beginning of a p-code function that does not require it,
     saving about four bytes for each function. This option must be
     used in conjunction with the /Oq option.
     See: ◄Maximum P-Code Optimization (/Oq)►
 
     Native-code entry points are a short series of machine code
     instructions placed at the beginning of a function compiled into
     p-code. They are generated by the compiler in programs that mix
     p-code and machine code.
 
     You can only use the /Gn option to remove the native-code entry
     point from functions called by other functions that you plan
     to compile into p-code.
 
     You can control the removal of native-code entry points from
     within your source file using the native_caller pragma. This
     pragma takes "on" or "off" as an argument.
 
     For example, to turn off native-code entry point generation for
     a p-code function, enter the following line prior to the beginning
     of the function:
 
          #pragma native_caller (off)
 
     Then turn the native_caller pragma back on after the end
     of the function by entering
 
          #pragma native_caller (on)
                                    -♦-