Avoiding the Visual C++ Runtime Library
By Matthew Wilson, February 01, 2003
There are many ways in which an app or library may be dependent on the C Runtime Library. But for small executables, most of the library is not required. You can make smaller, more-independent apps with the help of a "mini-CRT" Library.
February 2003/Avoiding the Visual C++ Runtime Library
Listing 12 int_cdecl_purecall()
/* /////////////////////////////////////////////////////////////
* ...
*
* Extract from purecall.c
*
* Copyright (C) 2002, Synesis Software Pty Ltd.
* (Licensed under the Synesis Software Standard Source License:
* http://www.synesis.com.au/licenses/ssssl.html)
*
* ...
* ////////////////////////////////////////////////////////// */
int __cdecl _purecall(void)
{
typedef int (WINAPI *PfnMsgBoxA)(HWND , LPCSTR , LPCSTR , UINT );
HINSTANCE hlib = LoadLibraryA("USER32.DLL");
PfnMsgBoxA pfn = (PfnMsgBoxA)GetProcAddress(hlib,
"MessageBoxA");
if(pfn)
{
pfn(NULL,
"A pure virtual function was called. "
"This is a fatal error, and indicates "
"a serious error in the implementation "
"of the application",
"PureCall",
MB_ICONSTOP | MB_TASKMODAL);
}
ExitProcess(1);
return 0;
}
