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Top Forums UNIX for Advanced & Expert Users Gcc g++ on cygwin - configure: error: *** A compiler with support for C++11 language features is req Post 303036512 by jim mcnamara on Sunday 30th of June 2019 08:50:18 PM
Old 06-30-2019
Let's check your compiler:
Can you compile a hello world program?
Use this example code:

Code:
    #include <iostream>
    using namespace std;
    int main()
    {
       cout << "Hello, World!";
       return 0;
    }

Save the file as hello.cpp
Compile and run with
Code:
g++ -o hello hello.cpp
./hello

Do you get any errors on either step?

If no errors, then compiler is okay. g++ and gcc behave differently with source files with a file extension of .c
g++ tries to compile .c files as as C++, not C. C syntax causes errors. Obviously because it is different from C++.

Try this as a compile:
Code:
g++ -std=c++0x -o hello hello.cpp

If this works we have to look elsewhere for what is happening. C11 is not normally turned on by default AFAIK. The successful second command turns it on and if it works the problem is likely NOT your compiler.

Last edited by jim mcnamara; 06-30-2019 at 10:03 PM..
These 2 Users Gave Thanks to jim mcnamara For This Post:
 

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FBB::lm(3bobcat)                                              OFoldStream manipulator                                             FBB::lm(3bobcat)

NAME
FBB::lm - Manipulator setting left margins of OFoldStream objects SYNOPSIS
#include <bobcat/ofoldstream> or #include <bobcat/ofoldstreambuf> Linking option: -lbobcat DESCRIPTION
The lm class implements a manipulator that can be inserted into OFoldStream objects to set the stream's left margin to a requested value. Depending on the tab-setting of the OFoldStream the inserted value represents the number of blank space characters or the number of tab-characters that will be used for the left margin. The request will be processed at the next newline character or std::flush or std::endl manipulator that is inserted into the stream. If a line is still once an lm object and a flush manipulator are inserted into the stream then the new left margin will be effective at the next word inserted into that line (cf., the example section below). A bad_cast exception is thrown when the manipulator is inserted into an ostream that is not using a OFoldStreambuf buffer. NAMESPACE
FBB All constructors, members, operators and manipulators, mentioned in this man-page, are defined in the namespace FBB. INHERITS FROM
- CONSTRUCTOR
o lm(size_t newValue): The standard copy constructor is available. MEMBER FUNCTIONS
There are no public or protected member functions in this class. EXAMPLE
#include <iostream> #include <bobcat/ofoldstream> using namespace std; using namespace FBB; int main() { OFoldStream out(cout, 0, 80); out << "hello world (left margin is 0)" << lm(4) << " " "this uses a 4 character wide left margin " << lm(0) << flush << "at column 0 again "; return 0; } FILES
bobcat/lm - defines the class interface SEE ALSO
bobcat(7), manipulators(3bobcat), mlm(3bobcat), ofoldstream(3bobcat) BUGS
None Reported. DISTRIBUTION FILES
o bobcat_3.01.00-x.dsc: detached signature; o bobcat_3.01.00-x.tar.gz: source archive; o bobcat_3.01.00-x_i386.changes: change log; o libbobcat1_3.01.00-x_*.deb: debian package holding the libraries; o libbobcat1-dev_3.01.00-x_*.deb: debian package holding the libraries, headers and manual pages; o http://sourceforge.net/projects/bobcat: public archive location; BOBCAT
Bobcat is an acronym of `Brokken's Own Base Classes And Templates'. COPYRIGHT
This is free software, distributed under the terms of the GNU General Public License (GPL). AUTHOR
Frank B. Brokken (f.b.brokken@rug.nl). libbobcat1-dev_3.01.00-x.tar.gz 2005-2012 FBB::lm(3bobcat)
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