C/C ++ function call conventions

Source: Internet
Author: User

Call Method

Parameter transfer

Clear Stack

Variable Length Parameter supported

Objects used

Function Name Modification

(Name-decoration Convention)


_ Cdecl

From right to left



C/C ++ default call Method

The name of the function is prefixed with an underscore (_ main ).

The generated code is larger than stdcall because each function call must contain the code for clearing the stack.

_ Stdcall

From right to left


Not Supported

Use of export functions in Win32 API and DLL

Starts with an underscore, the function name, the @ symbol, and the total number of bytes of the parameter. For example, int F (int A, double B) is named _ f @ 12.



_ Fastcall

Put it in EDX and ECx first, from right to left


Not Supported


Start with @, the function name, And the @ symbol is the total number of bytes of the parameter, for example, @ f @ 12.


Fast parameter passing, that is, quick call


From right to left, this pointer is placed in ECx


Not Supported

C ++ is dedicated to member functions to support this pointer.



This document is compiled based on msdn.

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