Implicit pointer conversion isn't an error

[cD1rtX3]

Description

The following nosensical code:

#include <stdio.h>

int main() {
	int i = 1;
	int *p = i;
	int **q = p;
	printf("%d, %p\n", *p, *q);
	return 0;
}

does not give an error in the IDE. GCC errors on this code even without warning flags:

Issue Details

Item	Value
Issue Category	Bug
Target	C/C++
VS Code Version	Code 1.127.0 (4fe60c8b1cdac1c4c174f2fb180d0d758272d713, 2026-06-30T10:52:33+02:00)
OS Version	Linux x64 6.8.0-134-generic
Extension Identifier	ms-vscode.cpptools
Extension Version	1.33.4
Extension Publisher	ms-vscode

[sean-mcmanus]

@cD1rtX3 Those technically are "warnings" with the C language that are upgraded to errors by default, but go back to warnings with -Wno-error=int-conversion -Wno-error=incompatible-pointer-types. So "by design" according to our current implementation, but the "warnings->errors" by default scenario is not something that we've discussed so one could argue those would be higher priority warnings to show by default were we to show "warnings".

They are "errors" with C++, which our parser shows. So the mechanism to show those warnings as errors exists, but just is hidden due to be being treated as warnings currently.