Skip to content

Latest commit

 

History

History
22 lines (18 loc) · 866 Bytes

compiler-warning-level-1-c4561.md

File metadata and controls

22 lines (18 loc) · 866 Bytes
description title ms.date f1_keywords helpviewer_keywords ms.assetid
Learn more about: Compiler Warning (level 1) C4561
Compiler Warning (level 1) C4561
11/04/2016
C4561
C4561
3a10c12c-601b-4b6c-9861-331fd022e021

Compiler Warning (level 1) C4561

'__fastcall' incompatible with the '/clr' option: converting to '__stdcall'

The __fastcall function-calling convention cannot be used with the /clr compiler option. The compiler ignores the calls to __fastcall. To fix this warning, either remove the calls to __fastcall or compile without /clr.

The following sample generates C4561:

// C4561.cpp
// compile with: /clr /W1 /c
// processor: x86
void __fastcall Func(void *p);   // C4561, remove __fastcall to resolve