Compiler doesn't see the C 11 identifiers-CodePudding

When I was trying to build the Google test c project I caught the errors

Error   C3861   't1': identifier not found
Error   C2065   't1': undeclared identifier
Error   C2039   'thread': is not a member of 'std'
Error   C2065   'thread': undeclared identifier
Error   C2146   syntax error: missing ';' before identifier 't1'

My test code is:

#include <future>
#include <thread>

#include "pch.h"
TEST(...)
{
    // preconditions here

    std::thread t1([&] {
        Sleep(100);
        testee.enqueue(item);
        });
    
    t1.join();
    
    // other logic
}

Why I cannot use the std::thread and other C 11 features in my project? How can I do it?

CodePudding user response：

Why I cannot use the std::thread and other C 11 features in my project?

Potential reason 1: You cannot use C 11 features unless you use C 11 or a later standard.

Potential reason 2: You cannot use std::thread unless you include the header that defines std::thread. It's defined in the header <thread>.

CodePudding user response：

#include "pch.h" must be first. Other #include directive prior #include "pch.h" are ignored.