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Questions tagged [c1001]

C1001 is an internal error in the Visual C++ compiler.

fatal error C1001: An internal error has occurred in the compiler.

Visual C++ error C1001 indicates that the compiler has encountered an internal error. This means that the compiler was somehow unable to correctly handle a particular piece of code. Such errors may be resolvable by disabling optimization, but if your computer hardware is functioning normally (no memory errors, etc.), this is a bug in the compiler, which Visual Studio will (by default) attempt to report to Microsoft.

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Is making a function template specialization virtual legal?

In C++, a function template specialization is supposed to act exactly like a normal function. Does that mean that I can make one virtual? For example: struct A { template void f(); template <> virtual void f() {} }; struct B…
alexk7
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VC++ Internal Compiler Error

Iam getting the following error , could some one help me how to fix it . fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'f:\vs70builds\3077\vc\Compiler\CxxFE\sl\P1\C\pdbmgr.cpp', line 149) Please choose the Technical Support…
somaraj
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C++ fatal error C1001: An internal error has occurred in the compiler

I'm getting the following error when compiling in release mode. 1>d:\users\eyal\projects\code\yalla\core\src\runbox\win32\window.cpp : fatal error C1001: An internal error has occurred in the compiler. 1> (compiler file…
iam3yal
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Just introducing myself to TMPing, and came across a quirk

I was just trying to learn the syntax of the beginner things, and how it worked when I was making this short bit of code in VS2008. The code below works in adding numbers 1 to 499, but if I add 1 to 500, the compiler bugs out giving me: fatal error…
Justen
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Target .NET 3.5 C++/CLI in Visual Studio 2010 Beta 2

Has anyone had any success converting a VS 2008 C++/CLI (vcproj) project to a VS 2010 project (vcxproj), whilst maintaining .NET 3.5 as the target framework? I haven't been able to do this and get the project to build successfully. The project…
jeffora
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Internal compiler error and boost::bind

I'm testing a C++ class with a number of functions that all have basically the same form: ClassUnderTest t; DATATYPE data = { 0 }; try { t.SomeFunction( &data ); } catch( const SomeException& e ) { // log known error } catch( ... ) { //…
PaulH
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If have I encounter an internal compiler error only in release configuration what can I look at to fix this?

I am using Visual Studio 2010. The C1001 error (internal compiler error) only occurs in the release configuration. Debug compiles fine. In this case, what should I be looking at to prevent this from happening in terms of configuration differences? I…
ajeetdl
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VS2008 internal compiler error

I'm consistently running into an internal compiler error while attempting to switch from MSVC6 to MSVC 2008. After much work commenting out different parts of the program, I've traced the error to two lines of code in two different CPP files. Both…
rmeador
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msvc and fold expression

I'm having trouble compiling this code on Windows. This code compile correctly on Linux, both with clang and gcc. I'm using msvc 19.29. Msvc exit with the not so helpful error C1001. struct Object{}; class Storage { Object &createObject() { …
dorfen_
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Visual Studio 2005 - VC++ compiler C1001 on Windows 7

When I try to build a simple "Hello World" C++ app on Windows 7 Beta, using Visual Studio 2005 (VC++2005) I get a rather generic error C1001 error (Internal compiler error) The compiler seems to just crash, and Windows pops up its (un)helpful…
Fritz H
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Error C1001 "Internal Compiler Error"

I am trying to run a VC++ 6 project in VS2010. In that am getting: Internal Compiler error.. error C1001 Can anyone please tell me how to rectify that error? I Googled for this and I found reinstalling the Service Pack will solve this issue. But…
user670573
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Visual Studio 2015 fatal error C1001

I am trying to build a project (SUBSYSTEM:WINDOWS) and my main looks like that: int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) {/*Code here*/} I get following error in VisualStudio Community…
Peter Winzer
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in VC++ VS6 a simple printf gives fatal error C1001: INTERNAL COMPILER ERROR

I am using visual studio 6 , vc++ on windows 7 and written a simple helloworld program which is by default created by VS6. but due to printf it is giving following error: // testapp.cpp : Defines the entry point for the console…
Rajesh
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fatal error C1001: internal compiler error when trying to install scikit-bio on python v3.10.11 (windows 10)

I am trying to install the scikit-bio package into my conda environment that uses python v 3.10.11, but I am receiving the fatal error C1001: internal compiler error. I have installed microscoft visual studio 2022 build tools as it instructed me. …
Zachary Leonard
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C1001 Compiling Error On Creation Of Class Object

When I Create An Instance of the following class using Game newGame; it throws a c1001 error stating that there was a compiler error. game.h: #pragma once #include #include #include #include #include…
TNTWZRD
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