C++ Questions - Developer Community

20 Votes

1 Solution

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

Hi, After the update to 15.8.4 (and the previous one as well), compiling this simple reproducer: #in

in C++ cppcompiler Fixed - Pending Release

Perez Elder España perez solvedNov 24, '18

17 Votes

2 Solution

C++/CLI: std::move causes std::unique_ptr parameter to be destructed before function call

When compiling with /clr parameters transferred with std::move() might get destructed before the fun

in C++ C++ cppcompiler Under Investigation

Ståle L. Hansen commented2 days ago

16 Votes

2 Solution

vcruntime140.dll should be made available on Microsoft Symbol Server

The Microsoft Symbol Server normally provides dlls so that 64-bit callstacks can be resolved in mini

in C++ cppcompiler Fixed - Pending Release

Ritesh Oedayrajsingh Varma commentedNov 12, '18

11 Votes

0 Solution

X64 compiler is inefficient inlining memset comapred to x86 compiler

t.zip The compiler inlines small memset calls as a set of byte moves in x64. in other compilers (gcc

in C++ cppcompiler Under Consideration

Roger Andrews commentedNov 13, '18

11 Votes

0 Solution

std::filesystem::file_time_type does not allow easy conversion to time_t

I'm not entirely sure whether this counts as a feature request or a bug, but I'm going to say the la

in C++ visual studio 2017 cppcompiler Under Consideration

Ian E. Green commentedAug 19, '18

6 Votes

0 Solution

cl.exe using >20GB of memory compiling small file in 15.9.4

The following code in a single cpp file causes CL.exe to use 30GB of memory. struct Uses23GB { unsig

in C++ C++ cppcompiler Under Investigation

Blake Preston posted2 days ago

6 Votes

2 Solution

[MSConnect 3145567] Concurrency::concurrent_unordered_multimap has a critical bug

#include <concurrent_unordered_map.h> #include <iostream> #include <unordered_map> struct myhash { s

in C++ visual studio 2017 version 15.5 visual studio 2017 version 15.3 cppcompiler Under Consideration

Alex Raider commentedAug 26, '18

6 Votes

0 Solution

FILE macro should not change casing of file

Right now whether __FILE__ macro returns the actual name (including casing), or lowercased name depe

in C++ cppcompiler Fixed in: Visual Studio 2019 version 16.0 Preview 1 Fixed - Pending Release

Blair Wang [MSFT] commentedDec 5, '18

6 Votes

2 Solution

VS2017 15.8 Internal compiler error ('msc1.cpp', line 1518): Conflict between preprocessor and #import

We're getting the following internal compiler error: 1>c:\program files (x86)\microsoft visual studi

in C++ visual studio 2017 version 15.8 cppcompiler Fixed - Pending Release

Jerry Wiltse solvedOct 9, '18

5 Votes

0 Solution

[MSConnect 1179496] VC++ lrintf() is 376 times longer than gcc/clang version

----------------------- Problem Description ----------------------- On gcc/clang the lrintf function

in C++ cppcompiler Under Consideration

Eric Brumer [MSFT] commentedMar 5, '18

5 Votes

0 Solution

rvalue-reference-to-array can bind to lvalue-reference-to-array

#include <utility> void f(int(&)[2]){} int main() { int x[2]{1,2}; f(std::move(x)); } The above code

in C++ cppcompiler Under Investigation

Junekey Jeon commentedJul 23, '18

5 Votes

0 Solution

cl.exe breaks with case sensitive paths

Description Windows recently gained support for case sensitivity in the file system, with this being

in C++ windows 10.0 cppcompiler windows 10.0.17134 Fixed - Pending Release

Leo Zhang [MSFT] commentedNov 27, '18

5 Votes

2 Solution

Performance regression in DIA SDK from Visual Studio 2017

There seem to be a big performance regression in DIA SDK, msdia140.dll to be exact in Visual Studio

in C++ cppcompiler diagnostics Fixed - Pending Release

Roger Andrews solvedNov 26, '18

5 Votes

0 Solution

[MSConnect 3140321]_mm_shuffle_ps and constexpr is STILL BROKEN in 19.11.25507.1

Description: #include <xmmintrin.h> #include <cstdint> constexpr std::uint8_t Foo() noexcept { retur

in C++ cppcompiler Under Consideration

Fiona Niu[MSFT] commentedMay 7, '18

4 Votes

0 Solution

C++17 Guaranteed copy elision: regression and remaining gaps in 15.8.0 preview 4

Hi, There are some remaining issues regarding the support of c++17 copy elision. When dealing with u

in C++ visual studio 2017 cppcompiler Fixed - Pending Release

Quella Zhang [MSFT] commentedAug 31, '18

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Problems (1328)

Features (103)

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

C++/CLI: std::move causes std::unique_ptr parameter to be destructed before function call

vcruntime140.dll should be made available on Microsoft Symbol Server

X64 compiler is inefficient inlining memset comapred to x86 compiler

std::filesystem::file_time_type does not allow easy conversion to time_t

cl.exe using >20GB of memory compiling small file in 15.9.4

[MSConnect 3145567] Concurrency::concurrent_unordered_multimap has a critical bug

FILE macro should not change casing of file

VS2017 15.8 Internal compiler error ('msc1.cpp', line 1518): Conflict between preprocessor and #import

[MSConnect 1179496] VC++ lrintf() is 376 times longer than gcc/clang version

rvalue-reference-to-array can bind to lvalue-reference-to-array

cl.exe breaks with case sensitive paths

Performance regression in DIA SDK from Visual Studio 2017

[MSConnect 3140321]_mm_shuffle_ps and constexpr is STILL BROKEN in 19.11.25507.1

C++17 Guaranteed copy elision: regression and remaining gaps in 15.8.0 preview 4

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