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Hans
Can we use any C++11 features with the latest GCC?
Posted on: 2018/3/17 8:04    #1
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I've built a GCC cross-compiler, and was hoping to at least use C++11 smart pointers and/or some C++11 features that don't require an updated stdlib. However, when I use -std=C++11, I get whole pages of errors in the header files, e.g.:
/usr/local/amiga/adtools-ppc-cyg64-20170623-404/ppc-amigaos/include/c++/5.4.0/bits/basic_string.h: In function ‘long long int std::__cxx11::stoll(const string&, std::size_t*, int)’:
/usr/local/amiga/adtools-ppc-cyg64-20170623-404/ppc-amigaos/include/c++/5.4.0/bits/basic_string.h:5274:31: error: ‘strtoll’ is not a member of ‘std’
   { return __gnu_cxx::__stoa(&std::strtoll, "stoll", __str.c_str(),


Yes, errors in the compiler's stdlib header files...

Has anyone else had more success? If so, how did you get it working? It's getting rather frustrating not being able to use newer C++ functionality.

Hans


P.S., Anyone know how to build the *.lha archive for the native GCC when built from the adtools source? Compilation completed, but I've got no idea how to transfer a fully working compiler to my AmigaOS machine.
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Capehill
Re: Can we use any C++11 features with the latest GCC?
Posted on: 2018/3/17 10:11    #2
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What commands you have given so far when building the native compiler?

I don't recall using any C++11 features succesfully yet. Maybe you can borrow smart pointers from boost as a workaround?
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salass00
Re: Can we use any C++11 features with the latest GCC?
Posted on: 2018/3/17 10:55    #3
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@Hans

Use -std=gnu++11 instead of -std=c++11.

The latter defines __STRICT_ANSI__ which disables newlib functions that are not standard ANSI.
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Hans
Re: Can we use any C++11 features with the latest GCC?
Posted on: 2018/3/17 14:40    #4
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@salass00

The -std=gnu++11 works! Well, it compiles; I haven't tested the binary yet. Thanks for that.

Now, if only I could figure out how to package and install the native GCC that I built...

Hans
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