Undue C++ namespace std error

[vitorfff]

Type: Bug

Error from Closed Issue #184167 still persists.

In C++ code, even with "using namespace std", code still sometimes shows "cout is ambiguous" error message. When clicking to run code it runs fine. Also if window is reopened error message disappears.

Code:
`#include
using namespace std;

int main()
{
cout << "test string" << endl;
cout << "another string";

return 0;

}`

EDIT: For some reason Github is not properly displaying pasted code. And thus it is missing the iostream header. Make sure to include that when copying/pasting the code.

VS Code version: Code - Insiders 1.80.0-insider (636dbcf, 2023-06-21T08:21:53.800Z)
OS version: Darwin arm64 21.6.0
Modes:

System Info

Item	Value
CPUs	Apple M1 (8 x 24)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	2, 2, 2
Memory (System)	8.00GB (0.08GB free)
Process Argv	--crash-reporter-id f324f5e2-5bae-4725-be16-5efc5b642d47
Screen Reader	no
VM	0%

Extensions (4)

Extension	Author (truncated)	Version
code-runner	for	0.12.0
copilot-chat	Git	0.3.2023062201
copilot-nightly	Git	1.92.179
cpptools	ms-	1.16.1

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[sean-mcmanus]

@vitorfff This was from the cpptools extension -- it's fixed with the latest 1.16.3 release.

@roblourens This was an important regression caused by the 1.16.0/1.16.1 (pre-release) of our cpptools extension. If any C++ issues from users with the cpptools extension installed could be moved to https://github.com/Microsoft/vscode-cpptools/issues that would be great.

[isidorn]

@sean-mcmanus Sorry about that. Same as #185304 (comment)