g++ Archives - Page 2 of 2

to_string is not a member of std, says g++ (mingw)

I am making a small vocabulary remembering program where words would would be flashed at me randomly for meanings. I want to use ...

May 20, 2022
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Is optimisation level -O3 dangerous in g++?

I have heard from various sources (though mostly from a colleague of mine), that compiling with an optimisation level of -O3 in g++ ...

May 20, 2022
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GCC dump preprocessor defines

Is there a way for gcc/g++ to dump its preprocessor defines from the command line? I mean things like __GNUC__, __STDC__, and so ...

May 18, 2022
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C++ unordered_map using a custom class type as the key

I am trying to use a custom class as key for an unordered_map, like the following: #include <iostream> #include <algorithm> #include <unordered_map> using ...

May 11, 2022
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Compiling C++11 with g++

I’m trying to update my C++ compiler to C++11. I have searched a bit and I have come to the conclusion that I ...

May 7, 2022
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Undefined reference to vtable

When building my C++ program, I’m getting the error message undefined reference to ‘vtable… What is the cause of this problem? How do ...

May 4, 2022
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usr/bin/ld: cannot find -l

I’m trying to compile my program and it returns this error : usr/bin/ld: cannot find -l<nameOfTheLibrary> in my makefile I use the command ...

May 1, 2022
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What is the difference between g++ and gcc?

What is the difference between g++ and gcc? Which one of them should be used for general c++ development? 10 s 10

April 15, 2022
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