Microsoft Visual C++ Runtime Library - Debug Assertion Failed!

Microsoft Visual C++ Runtime Library - Debug Assertion Failed!

Running an application in a debug environment throws the following assertion message.

---------------------------
Microsoft Visual C++ Runtime Library
---------------------------
Debug Assertion Failed!

Program: x:\test\myapp.exe
File: minkernel\crts\ucrt\src\appcrt\heap\debug_heap.cpp
Line: 996

Expression: __acrt_first_block == header

For information on how your program can cause an assertion
failure, see the Visual C++ documentation on asserts.

(Press Retry to debug the application)

---------------------------
Abort   Retry   Ignore   
---------------------------

In my specific case, this was caused by a string created in the heap by a DLL and freed in the executable.  The DLL was built using /MDd [Configuration Properties | C/C++ | Code Generation | Runtime Library = Multi-threaded Debug DLL (/MDd)] and the executable was built /MTd with MFC as static library [Configuration Properties | C/C++ | Code Generation | Runtime Library = Multi-thread Debug (/MTd)]/[Configuration Properties | Advanced | Use of MFC = Use MFC in a Static Library]. 

The fix/workaround is to change the executable to use MFC as a shared library [Configuration Properties | Advanced | Use of MFC = Use MFC in a Shared DLL]

//end

 

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REF:003

CPP Quick Guide

Basics
Hello world
User input
While loop
If statement
For loop
Switch statement
Read file using ifstream
Write to a file using ofstream

Containers
Basic usage of std::list
Basic usage of std::map
Basic usage of std::vector
Data type conversion

Windows API with Exmaples
DeviceIoControl
FindFirstVolumeW
GetDiskFreeSpaceExW
GetLogicalDrives
GetLogicalDriveStrings

C++/WinRT
C++/WinRT Hello World

Qt Cross-platform
Installing Qt Creator 9.0.1 on Windows 10
Qt console hello world
Qt Widget hello world
Qt Widget hello world code only


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C++/WinRT Hello World

This is a quick start quide to prepare a development environment to develop against C++/WinRT.

System:
Development OS: Windows 10 Pro 22H2
Target: Windows 10 LTSB build 10.0.14393
IDE: Visual Studio 2022 (used 17.4.4)

Install Visual Studio 2022 Universal Windows Platform development workload. The following is very _important_ as this is what will allow you to create C++/WinRT project. Check C++ (v143) Universal Windows Platform tools, doing so will also enable and install corresponding SDK.

Set back and relax as this will download ~24GB of data from Microsoft.

After installing Visual Studio, create Windows Console Application (C++/WinRT)

For the Minimum version, select Windows 10 Anniversary Update (10.0; Build 14393)

The template should look like below

If all is well, running it should look like below

Keywords: Visual Studio, C++/WinRT