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c++gccclangclang++gcc-warning

Can Clang output a warning for conversion of double to float?

This code

int main() {
    double d = 3.14;
    float f = d;
}

generates a warning with Vision C++ 2015 express:

warning C4244: 'initializing': conversion from 'double' to 'float', possible loss of data

I would love to also see a warning like this when compiling with Clang (or GCC). Is there a command line option for this? -Wconversion does not help here.

Solution

  • I'm sorry. I mixed up two compile bash scripts I was using. So I thought I had -Wconversion enabled, but it actually was not. -Wconversion does help indeed.