Bug 74946

Summary: g++ on RH8.0 does not see standard library types properly
Product: [Retired] Red Hat Linux Reporter: Matt Kennel <mkennel>
Component: gccAssignee: Jakub Jelinek <jakub>
Status: CLOSED NOTABUG QA Contact: Brian Brock <bbrock>
Severity: high Docs Contact:
Priority: medium    
Version: 8.0CC: ali
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2002-10-03 03:43:20 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Matt Kennel 2002-10-02 23:16:37 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020827

Description of problem:
For some reason in the g++ or libstdc++ installation the standard library types
do not seem to be visible to the compiler.  These are trivial programs which
work fine on Redhat 7.3.  This is serious since it is impossible to compile any
useful C++ program.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
% cat bug.cc
#include <sstream>
#include <string>

main() {
  string s("Hello standard library.\n"); 
  cout << "hello world\n" << s;
}


Actual Results:   g++ -o bug bug.cc
bug.cc: In function `int main()':
bug.cc:9: `string' undeclared (first use this function)
bug.cc:9: (Each undeclared identifier is reported only once for each function
   it appears in.)
bug.cc:9: parse error before `(' token
bug.cc:10: `cout' undeclared (first use this function)
bug.cc:10: `s' undeclared (first use this function)
[mbk@lyapunov ffs-adaptive]%


Expected Results:  % g++ -o bug bug.cc
% ./bug
hello world
Hello standard library.
%

Additional info:

g++ -v
[mbk@lyapunov ffs-adaptive]% g++ -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --host=i386-redhat-linux --with-system-zlib --enable-__cxa_atexit
Thread model: posix
gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)
[mbk@lyapunov ffs-adaptive]%

% rpm -q -i gcc
Name        : gcc                          Relocations: (not relocateable)
Version     : 3.2                               Vendor: Red Hat, Inc.
Release     : 7                             Build Date: Tue 03 Sep 2002 08:04:33

Comment 1 Ali-Reza Anghaie 2002-10-03 03:43:15 UTC
For reference: 
 
[ali@damascus tt]$ cat /etc/redhat-release 
Red Hat Linux release 8.0 (Psyche) 
 
[ali@damascus tt]$ cat bug.cpp 
#include <iostream> 
#include <string> 
 
main() { 
        std::string s("Hello standard library.\n"); 
        std::cout << "hello world\n" << s; 
} 
 
[ali@damascus tt]$ g++ -o bug bug.cpp 
 
[ali@damascus tt]$ ./bug 
hello world 
Hello standard library. 
 
 
Cheers, -Ali

Comment 2 Jakub Jelinek 2002-10-03 11:33:29 UTC
The standard defines string, cout etc. in std namespace.
So, either you do ali suggested, or you add
using std::string;
using std::cout;
or you add
using namespace std;