What are valid values for the c_cpp_properties.json tag "intelliSenseMode" ?
It defaults to clang-x64, but I am compiling with g++ so is there another value I can use there? I can not find any documentation about it.
5 Answers
Because Artemy Vysotsky did not post his answer as an answer:
The documentation states that "msvc-x64" and "clang-x64" are the only possible values.
When editing the .json configuration file, just type "intelliSenseMode": "" and let intelliSense itself help.
Actually you may use the option "intelliSenseMode": "${default}" to allow self selection.
As of today, the defaults are: clang-x64 for Mac; msvc-x64 for Windows; and gcc-x64 for Linux.
I am getting this warning because of line number 16 
Just change "intelliSenseMode": "windows-msvc-x64" to "intelliSenseMode": "windows-gcc-x64"
Since v0.25, 32 bit modes are supported. The valid options are msvc-x64, gcc-x64, clang-x64 and their 32 bit counterparts msvc-x86, gcc-x86, clang-x86. There's also the ${default} option that Fábio Lobão mentions.
(Source: https://github.com/microsoft/vscode-cpptools/issues/2312)
I was having the same problem, if you're using Windows
I used "g++.exe"
Then I changed the "IntelliSense mode" to "windows-gcc-x64" to get rid of the warning
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