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─────C/C++ Compiler─────────────────────────────────────────────────────────
 
     Syntax:  /Zg
 
     This option generates a function prototype for each function
     defined in the source file but does not compile the source file.
 
     The function prototype includes the function return type and an
     argument-type list. The argument-type list is generated from the
     types of the formal parameters of the function. Any function
     prototypes already present in the source file are ignored.
 
     The generated list of prototypes is written to the standard
     output. You may find this list helpful to verify that actual
     arguments and formal parameters of a function are compatible. You
     can save the list by redirecting standard output to a file. Then
     you can use #include to make it a part of your source file as
     function prototypes. This is a useful technique, as the presence
     of function prototypes allows the compiler to perform argument
     type checking.
 
     If you use the /Zg option and your program contains formal
     parameters that have structure, enumeration, or union type (or
     pointers to such types), the prototype for each structure,
     enumeration, or union type must have a tag.
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