Humpolicek, Jiri - Acision wrote: > I have, from my point of view, strange problem. I want to tell gcc to report all compilation warnings, especially warnings about assigment from variable of greater type to variable with smaller type. For example, when I write following code and compile it with next command no warning is reported: > > c++ -o test test.cpp -Wall -Wextra -Wconversion -pedantic > You don't say anything about what problem you encounter, or what platform you use. Your source code doesn't look like a suitable replacement for a test command which may be implemented in your shell, so it would be simpler to choose a non-conflicting name.