Microsoft C++ Runtime: Library

// Exception handling function void handleException(const CustomException& e) // Log the exception std::cerr << "Exception caught:" << std::endl; std::cerr << " Message: " << e.what() << std::endl; std::cerr << " File: " << e.getFile() << std::endl; std::cerr << " Line: " << e.getLine() << std::endl; std::cerr << " Function: " << e.getFunction() << std::endl;

Run :

| Error Code | Meaning | Typical Root Cause | |------------|---------|--------------------| | | Pure virtual function call | Calling a virtual function on an abstract object after destruction or with null vtable (memory corruption, double delete) | | R6016 | Not enough space for thread data | OS out of TLS (Thread Local Storage) slots – rare, but caused by too many DLLs with __declspec(thread) | | R6030 | CRT not initialized | Static C++ object’s constructor crashed before main() , or you called a CRT function in DllMain | | R6028 | Unable to initialize heap | Corrupted process heap (often due to buffer overrun from another module) | | Debug Assertion Failed | Expression: _CrtIsValidHeapPointer(block) | Heap corruption – double free, writing past allocated memory | microsoft c++ runtime library

Technically, it is a collection of Standard Library (STL) and C Runtime (CRT) routines that provide the instructions for a program's most basic tasks. Instead of a developer writing code from scratch to "open a file" or "draw a box on the screen," they use these pre-built routines. This is why you often see multiple "Redistributable"

: Different applications are built using different versions of the library (e.g., Visual C++ 2013, 2017). This is why you often see multiple "Redistributable" versions installed on your PC . Visual C++ Runtime Error Solution Windows PC Permanent Fix "Exception caught:" &lt

Example: App uses both VS2013 ( msvcp120.dll ) and VS2019 ( vcruntime140.dll ) – can cause heap corruption because they have different CRTs.

int getLine() const return line_;