issue with hello.cpp

Khadijah92706 · 12-23-2018, 04:55 PM

I am trying to compile the hello.cpp program. I have the "std_lib_faci8lities.h" which I just downloaded today.

GNU nano 2.9.7 hello.cpp

// This program outputs "Hello, World" to screen

#include "std_lib_facilities.h"

int main() // C++ programs start by executing the function called main
{
cout <<"Hello, World!\n"; // output "Hello, World!"
return 0;
}

I get this result:

$ g++ hello.cpp
In file included from /usr/lib/gcc/x86_64-pc-cygwin/7.3.0/include/c++/ext/hash_map:60:0,
from /usr/include/std_lib_facilities.h:34,
from hello.cpp:3:
/usr/lib/gcc/x86_64-pc-cygwin/7.3.0/include/c++/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header which may be removed without further notice at a future date. Please use a non-deprecated interface with equivalent functionality instead. For a listing of replacement headers and interfaces, consult the file backward_warning.h. To disable this warning use -Wno-deprecated. [-Wcpp]
#warning \
^~~~~~~
In file included from /usr/lib/gcc/x86_64-pc-cygwin/7.3.0/include/c++/locale:41:0,
from /usr/lib/gcc/x86_64-pc-cygwin/7.3.0/include/c++/iomanip:43,
from /usr/include/std_lib_facilities.h:212,
from hello.cpp:3:
/usr/lib/gcc/x86_64-pc-cygwin/7.3.0/include/c++/bits/locale_facets_nonio.h:1971:5: error: template-id ‘do_get<>’ for ‘String std::messages<char>::do_get(std::messages_base::catalog, int, int, const String&) const’ does not match any template declaration
messages<char>::do_get(catalog, int, int, const string&) const;
^~~~~~~~~~~~~~
/usr/lib/gcc/x86_64-pc-cygwin/7.3.0/include/c++/bits/locale_facets_nonio.h:1971:62: note: saw 1 ‘template<>’, need 2 for specializing a member function template
messages<char>::do_get(catalog, int, int, const string&) const;

berndbausch · 12-23-2018, 05:29 PM

I would ask this question on the cplusplus forum or a Cygwin forum or mailing list. Cygwin is not quite the same as Linux.

Also, there are plenty of internet pages that report problems with std_lib_facilities.h, e.g. https://stackoverflow.com/questions/...b-facilities-h.

You may have downloaded the wrong version or require a particular complication option.

Khadijah92706 · 12-23-2018, 09:42 PM

Ok. Thank you for pointing me in the correct direction. Much appreciated.

milhan · 12-28-2018, 08:27 AM

Quote:

Originally Posted by Khadijah92706

I am trying to compile the hello.cpp program. I have the "std_lib_faci8lities.h" which I just downloaded today.

GNU nano 2.9.7 hello.cpp

// This program outputs "Hello, World" to screen

#include "std_lib_facilities.h"

int main() // C++ programs start by executing the function called main
{
cout <<"Hello, World!\n"; // output "Hello, World!"
return 0;
}

Why don't you include <iostream> instead of std_lib_facilities.h?

Code:

#include <iostream>

int main()
{
   cout << "Hello, World!\n"; // output "Hello, World!"
   return 0;
}