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How to change gcc compiler to C ++ 11 on ubuntu

I am using ubuntu 12.04 and gcc is 4.6.3 by default. It does not accept C ++ 11 commands and gives me a conclusion saying that the command is not compatible with C ++ 98. I checked online and saw that people advised against changing the default compilers in the operating system, as they become unstable. Can anyone suggest a fix or a safe way to download a gcc compiler compatible with C ++ 11.

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c ++ c ++ 11
Jun 29 '13 at 9:57 on
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2 answers

gcc 4.6.3 supports many of the features of C ++ 11 . However, they are disabled by default. To enable them, use the following flag:

g++ -std=c++0x ...

This flag also disables GNU extensions; to enable them, use the -std=gnu++0x flag.

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Jun 29 '13 at 10:02
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Like others, you need to enter the command line parameter std. Let's simplify for you

  • Open a terminal by pressing Ctrl + Alt + T
  • sudo gedit ~/.bashrc

  • Enter the next line as the last line

     alias g++="g++ --std=c++0x"
  • Save and close the file and close the terminal.
  • Now open the terminal again and compile your C ++ 11 programs just g++ filename.cpp

Here it is. By default, it will compile for the C ++ 11 standard.

NOTE. . If you follow the option above to compile non-C ++ 11 programs, you should use

 g++ --std=c++98 filename.cpp
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Jun 29 '13 at 10:19
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