I do not know why there is no answer directly addressing the problem. When you
want to compile C++ program, it is best to use clang++. For example, the
following works for me:
clang++ -Wall -std=c++11 test.cc -o test
If compiled correctly, it will produce the executable file test, and you can
run the file by using ./test.
Or you can just use clang++ test.cc to compile the program. It will produce a
default executable file named a.out. Use ./a.out to run the file.
The whole process is a lot like g++ if you are familiar with g++. See this
post to check which warnings are included with -Wall option. This
page shows a list of diagnostic flags supported by Clang.
A note on using clang -x c++: Kim Gräsman says that you can also use
clang -x c++ to compile cpp programs, but that may not be true. For example,
I am having a simple program below:
#include <iostream>
#include <vector>
int main() {
/* std::vector<int> v = {1, 2, 3, 4, 5}; */
std::vector<int> v(10, 5);
int sum = 0;
for (int i = 0; i < v.size(); i++){
sum += v[i]*2;
}
std::cout << "sum is " << sum << std::endl;
return 0;
}
clang++ test.cc -o test will compile successfully, but clang -x c++ will
not, showing a lot undefined references errors. So I guess they are not exactly
equivalent. It is best to use clang++ instead of clang -x c++ when
compiling c++ programs to avoid extra troubles.