simple program on linux

**finnepower** · 05-29-2004

How do I have to change the following program so it will work in linux (g++)?

Code:

#include <iostream>
using namespace std;

int main()
{
cout<<"Hello, world!";
cin.get();
return 0;
}

**Thantos** · 05-29-2004

That should compile fine. What error / warnings are you getting with g++?

**finnepower** · 05-29-2004

Originally Posted by Thantos

That should compile fine. What error / warnings are you getting with g++?

This is the entire message:

Code:

hello.cpp:1: error: syntax error before `for'
hello.cpp:1:36: missing terminating ' character
hello.cpp:1:36: warning: character constant too long for its type
hello.cpp:2: error: syntax error before `to'
hello.cpp:3: error: syntax error before `text'
hello.cpp:3:36: missing terminating ' character
hello.cpp:3:36: warning: character constant too long for its type
In file included from /usr/include/c++/3.3.3/i386-redhat-linux/bits/c++locale.h:42,
                 from /usr/include/c++/3.3.3/iosfwd:46,
                 from /usr/include/c++/3.3.3/ios:44,
                 from /usr/include/c++/3.3.3/ostream:45,
                 from /usr/include/c++/3.3.3/iostream:45,
                 from hello.cpp:4:
/usr/include/langinfo.h:48: error: `__LC_TIME' was not declared in this scope
/usr/include/langinfo.h:48: error: enumerator value for `ABDAY_1' not integer
   constant
/usr/include/langinfo.h:241: error: `__LC_COLLATE' was not declared in this
   scope
/usr/include/langinfo.h:241: error: enumerator value for `_NL_COLLATE_NRULES'
   not integer constant
/usr/include/langinfo.h:265: error: `__LC_CTYPE' was not declared in this scope
/usr/include/langinfo.h:265: error: enumerator value for `_NL_CTYPE_CLASS' not
   integer constant
/usr/include/langinfo.h:357: error: `__LC_MONETARY' was not declared in this
   scope
/usr/include/langinfo.h:357: error: enumerator value for `__INT_CURR_SYMBOL'
   not integer constant
/usr/include/langinfo.h:471: error: `__LC_NUMERIC' was not declared in this
   scope
/usr/include/langinfo.h:471: error: enumerator value for `__DECIMAL_POINT' not
   integer constant
/usr/include/langinfo.h:492: error: `__LC_MESSAGES' was not declared in this
   scope
/usr/include/langinfo.h:492: error: enumerator value for `__YESEXPR' not
   integer constant
/usr/include/langinfo.h:507: error: `__LC_PAPER' was not declared in this scope
/usr/include/langinfo.h:507: error: enumerator value for `_NL_PAPER_HEIGHT' not
   integer constant
/usr/include/langinfo.h:512: error: `__LC_NAME' was not declared in this scope
/usr/include/langinfo.h:512: error: enumerator value for `_NL_NAME_NAME_FMT'
   not integer constant
/usr/include/langinfo.h:521: error: `__LC_ADDRESS' was not declared in this
   scope
/usr/include/langinfo.h:521: error: enumerator value for `
   _NL_ADDRESS_POSTAL_FMT' not integer constant
/usr/include/langinfo.h:536: error: `__LC_TELEPHONE' was not declared in this
   scope
/usr/include/langinfo.h:536: error: enumerator value for `
   _NL_TELEPHONE_TEL_INT_FMT' not integer constant
/usr/include/langinfo.h:543: error: `__LC_MEASUREMENT' was not declared in this
   scope
/usr/include/langinfo.h:543: error: enumerator value for `
   _NL_MEASUREMENT_MEASUREMENT' not integer constant
/usr/include/langinfo.h:547: error: `__LC_IDENTIFICATION' was not declared in
   this scope
/usr/include/langinfo.h:547: error: enumerator value for `
   _NL_IDENTIFICATION_TITLE' not integer constant

**Salem** · 05-29-2004

What command line did you type to get that?

What does
g++ --version
show for you?

It looks a lot like you missed some installation step

Also paste what you get when you compile with
g++ -v prog.cpp

**finnepower** · 05-29-2004

Originally Posted by Salem

What command line did you type to get that?

What does
g++ --version
show for you?

It looks a lot like you missed some installation step

Also paste what you get when you compile with
g++ -v prog.cpp

"g++ --version" displays this:

g++ (GCC) 3.3.3 20040412 (Red Hat Linux 3.3.3-7)
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

and "g++ -v hello.cpp" just shows loads of errors

By the way, I haven't compiled anything with g++ before so it could be some installation-error...

**Thantos** · 05-29-2004

Definatly re-install it

**Salem** · 05-29-2004

> and "g++ -v hello.cpp" just shows loads of errors
Gee, ya think posting them would help?

**finnepower** · 05-29-2004

Originally Posted by Salem

> and "g++ -v hello.cpp" just shows loads of errors
Gee, ya think posting them would help?

I didn't post it because it looks really similar to the messages I got before, but here it is:

Code:

Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.3.3/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --disable-libunwind-exceptions --with-system-zlib --enable-__cxa_atexit --host=i386-redhat-linux
Thread model: posix
gcc version 3.3.3 20040412 (Red Hat Linux 3.3.3-7)
 /usr/lib/gcc-lib/i386-redhat-linux/3.3.3/cc1plus -quiet -v -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=3 -D_GNU_SOURCE hello.cpp -D__GNUG__=3 -quiet -dumpbase hello.cpp -auxbase hello -version -o /tmp/ccjV6rAC.s
GNU C++ version 3.3.3 20040412 (Red Hat Linux 3.3.3-7) (i386-redhat-linux)
        compiled by GNU C version 3.3.3 20040412 (Red Hat Linux 3.3.3-7).
GGC heuristics: --param ggc-min-expand=38 --param ggc-min-heapsize=15891
ignoring nonexistent directory "/usr/i386-redhat-linux/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/c++/3.3.3
 /usr/include/c++/3.3.3/i386-redhat-linux
 /usr/include/c++/3.3.3/backward
 /usr/local/include
 /usr/lib/gcc-lib/i386-redhat-linux/3.3.3/include
 /usr/include
End of search list.
hello.cpp:1: error: syntax error before `for'
hello.cpp:1:36: missing terminating ' character
hello.cpp:1:36: warning: character constant too long for its type
hello.cpp:2: error: syntax error before `to'
hello.cpp:3: error: syntax error before `text'
hello.cpp:3:36: missing terminating ' character
hello.cpp:3:36: warning: character constant too long for its type
In file included from /usr/include/c++/3.3.3/i386-redhat-linux/bits/c++locale.h:42,
                 from /usr/include/c++/3.3.3/iosfwd:46,
                 from /usr/include/c++/3.3.3/ios:44,
                 from /usr/include/c++/3.3.3/ostream:45,
                 from /usr/include/c++/3.3.3/iostream:45,
                 from hello.cpp:4:
/usr/include/langinfo.h:48: error: `__LC_TIME' was not declared in this scope
/usr/include/langinfo.h:48: error: enumerator value for `ABDAY_1' not integer
   constant
/usr/include/langinfo.h:241: error: `__LC_COLLATE' was not declared in this
   scope
/usr/include/langinfo.h:241: error: enumerator value for `_NL_COLLATE_NRULES'
   not integer constant
/usr/include/langinfo.h:265: error: `__LC_CTYPE' was not declared in this scope
/usr/include/langinfo.h:265: error: enumerator value for `_NL_CTYPE_CLASS' not
   integer constant
/usr/include/langinfo.h:357: error: `__LC_MONETARY' was not declared in this
   scope
/usr/include/langinfo.h:357: error: enumerator value for `__INT_CURR_SYMBOL'
   not integer constant
/usr/include/langinfo.h:471: error: `__LC_NUMERIC' was not declared in this
   scope
/usr/include/langinfo.h:471: error: enumerator value for `__DECIMAL_POINT' not
   integer constant
/usr/include/langinfo.h:492: error: `__LC_MESSAGES' was not declared in this
   scope
/usr/include/langinfo.h:492: error: enumerator value for `__YESEXPR' not
   integer constant
/usr/include/langinfo.h:507: error: `__LC_PAPER' was not declared in this scope
/usr/include/langinfo.h:507: error: enumerator value for `_NL_PAPER_HEIGHT' not
   integer constant
/usr/include/langinfo.h:512: error: `__LC_NAME' was not declared in this scope
/usr/include/langinfo.h:512: error: enumerator value for `_NL_NAME_NAME_FMT'
   not integer constant
/usr/include/langinfo.h:521: error: `__LC_ADDRESS' was not declared in this
   scope
/usr/include/langinfo.h:521: error: enumerator value for `
   _NL_ADDRESS_POSTAL_FMT' not integer constant
/usr/include/langinfo.h:536: error: `__LC_TELEPHONE' was not declared in this
   scope
/usr/include/langinfo.h:536: error: enumerator value for `
   _NL_TELEPHONE_TEL_INT_FMT' not integer constant
/usr/include/langinfo.h:543: error: `__LC_MEASUREMENT' was not declared in this
   scope
/usr/include/langinfo.h:543: error: enumerator value for `
   _NL_MEASUREMENT_MEASUREMENT' not integer constant
/usr/include/langinfo.h:547: error: `__LC_IDENTIFICATION' was not declared in
   this scope
/usr/include/langinfo.h:547: error: enumerator value for `
   _NL_IDENTIFICATION_TITLE' not integer constant

**Thantos** · 05-29-2004

This is a big red flag for me

ignoring nonexistent directory "/usr/i386-redhat-linux/include"

**linuxdude** · 05-29-2004

I would reinstall it. If you can check and see if they are in /usr/include. try

Code:

g++ -o test test.c -I /usr/include
or 
g++ -o test test.c -I /usr/386-redhat-linux/include

**finnepower** · 05-29-2004

I've reinstalled it and it works. I guess some error occured because the linux installation program installed it the first time.

Thanks for your help

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