Somewhat confused about C++11 and the new library function for conversion of string..

This is a discussion on Somewhat confused about C++11 and the new library function for conversion of string.. within the C++ Programming forums, part of the General Programming Boards category; and literals. I was looking for stod() for example in MinGW includes and have not found it under std:: Anyone ...

  1. #1
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    Somewhat confused about C++11 and the new library function for conversion of string..

    and literals. I was looking for stod() for example in MinGW includes and have not found it under std::

    Anyone have an exampled of how they are used?

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    Are you sure your version of g++ used by MinGW is C++11 compliant?

    Here is a link to some documentation for these functions: std::stof.

    Jim

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    Quote Originally Posted by jimblumberg View Post
    Are you sure your version of g++ used by MinGW is C++11 compliant?

    Here is a link to some documentation for these functions: std::stof.

    Jim
    std::stod and similar library methods I am unable to find using MinGW and having MinGW lib and include paths in my path environment variable using Eclipse. Is there a full compatible compiler supporting all features of c++11 I can use with Eclipse?
    Last edited by Imanuel; 12-15-2012 at 10:04 AM.

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    Is there a full compatible compiler supporting all features of c++11 I can use with Eclipse?
    To my knowledge there is no compiler available for any platform that supports all features of C++11. However there might be a more recent version of g++ than the one you currently have. See this link: MinGW upgrade. And it also looks like the main minGW package has been upgraded to the 4.7 series so you may be able to get the package here also.

    Jim

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    Registered User whiteflags's Avatar
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    Is there a full compatible compiler supporting all features of c++11 I can use with Eclipse?
    I replied to this thread to laugh at you.

    GNU GCC has implemented the string conversions, according to this page (see the row starting with 21.5), but you would have to pull the code from the SVN and compile it. It's highly unlikely that it's in mingw right now but I could be wrong. If you *really need* these functions right now, try compiling with the bleeding edge in standards support.

    Code:
     mingw32-g++.exe -c test.cc -std=c++11 -o test
    If it doesn't work, you're stuck waiting for them to put it in later releases like the rest of us. But, as nice as these functions are, you shouldn't *really need* them.
    Last edited by whiteflags; 12-15-2012 at 08:30 PM.

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    C++まいる!Cをこわせ! Elysia's Avatar
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    Microsoft's Visual C++ compiler has the complete C++11 standard library, or so they claim.
    They do not support all core C++11 features, though.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

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    Quote Originally Posted by Elysia View Post
    Microsoft's Visual C++ compiler has the complete C++11 standard library
    I'm pretty sure GCC does as well. the standard library is the easy part though.

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    The latest mingw uses gcc 4.7, which has better C++11 support than MSVC. But the library support relevant to this question should be available on any modern compiler.
    It is too clear and so it is hard to see.
    A dunce once searched for fire with a lighted lantern.
    Had he known what fire was,
    He could have cooked his rice much sooner.

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    The stoi() function will only be available starting with some of the latest versions of gcc. Version 4.5.2 did not support these functions, I don't remember if the 4.6 version supported them or not, but they are supported by the 4.7 versions.


    Jim

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