(C++) tried to include chrono, -std=c++0x not recognized

Asked Dec 06 '14 at 14:54

Active Dec 06 '14 at 15:02

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I'm using windows 7. I am asked to use chrono to check function evaluation time. My instructor told me to compile with g++ -std=c++0x x.cpp

How could I do it in Codeblocks?

My friend uses/marks this flag in compiler settings: "Have g++ follow the C++11 ISO C++ language standard [-std=c++11]. I did not have it so I manually created it then build and it gave this error:

unrecognized command line option "-std=c++11"

When I choose "Have g++ follow the coming C++0x ISO language standard -std=c++0x" , again it says:

unrecognized command line option "-std=c++0x"

I downloaded the same setup as my friend. And it gives same errors in Dev C++

What should I do?

I'm using GNU GCC Compiler my friend also uses this

edited Dec 06 '14 at 15:02

asked Dec 06 '14 at 14:54

azimlicoder

possible duplicate of [How can I add C++11 support to code::blocks compiler?](http://stackoverflow.com/questions/18174988/how-can-i-add-c11-support-to-codeblocks-compiler) – Borgleader Dec 06 '14 at 14:55
1

You haven't mentioned your GCC version, which is critical in this question. – E_net4 Dec 06 '14 at 14:58
it is GNU GCC Compiler my friend also uses this – azimlicoder Dec 06 '14 at 15:01
and it is not a duplicate – azimlicoder Dec 06 '14 at 15:03
Do mention the VERSION of the compiler. Type in `gcc --version`. – E_net4 Dec 06 '14 at 15:05
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GCC supports `-std=c++0x` starting with version 4.3 and `-std=c++11` starting with version 4.7, so as @E_net4 mentions you should determine what version of GCC you're using. – Michael Burr Dec 06 '14 at 15:22
I'm trying to find how could I type in gcc --version on codeblocks in windows – azimlicoder Dec 06 '14 at 15:26
With GCC properly installed, the standard command line should suffice (cmd). – E_net4 Dec 06 '14 at 15:27
Are you talking about windows' standard cmd? And how? – azimlicoder Dec 06 '14 at 15:42
Where did you get Code::Blocks from? The current download page here: http://www.codeblocks.org/downloads/26 indicates that GCC 4.7.1 or later should be included for any of the Windows downloads. Try using one of those downloads if you got Code::Blocks somewhere else. – Michael Burr Dec 06 '14 at 16:05

(C++) tried to include chrono, -std=c++0x not recognized

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