Build a C ++ runtime environment on CentOS 6.6

Build a C ++ runtime environment on CentOS 6.6

1. Install the runtime environment

#yuminstallgcc-c++

Note: Both gcc-c ++ and libstdc ++-devel are installed.

2. Check whether g ++ is successfully installed.

[Root @ MyRHEL desktop]#g++-v

Use built-in specs.

Goals: x86_64-redhat-linux

Configuration :.. /configure -- prefix =/usr -- mandir =/usr/share/man -- infodir =/usr/share/info -- with-bugurl = http://bugzilla.redhat.com/bugzilla -- enable-bootstrap -- enable-shared -- enable-threads = posix -- enable-checking = release -- with-system-zlib -- enable-_ cxa_atexit -- disable-libunwind-exceptions -- enable-gnu-unique-object -- enable- ages = c, c ++, objc, obj-c ++, java, fortran, ada -- enable-java-awt = gtk -- disable-dssi -- with-java-home =/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre -- enable-libgcj-multifile -- enable-java -maintainer-mode -- with-ecj-jar =/usr/share/java/eclipse-ecj.jar -- disable-libjava-multilib -- with-ppl -- with-cloog -- with-tune = generic -- with-arch_32 = i686 -- build = x86_64-redhat-linux

Thread model: posix

Gcc version 4.4.7 20120313 (Red Hat 4.4.7-11) (GCC)

3. Test

(1) Test the c language program testc. c.

#include<stdio.h>intmain(){printf("HelloC!\n");return0;}

Run:

#gcctestc.c-otestc#./testc

(2) test C ++ program test. cpp

#include<iostream>usingnamespacestd;intmain(){cout<<"ComeupandC++mesometime.";cout<<endl;cout<<"Youwon'tregretit!"<<endl;return10;}

Run:

#g++-otest1test.cpp#./test1

4. Install OracleClient

Mainly install oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm and oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm.

#rpm-ivhoracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm#rpm–ivhoracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm

5 configuration

(1) configure the ld. so. conf file and enter the following content:

#vi/etc/ld.so.confincludeld.so.conf.d/*.conf/usr/lib/oracle/11.2/client64/lib

(2) configure the/etc/hosts file (enter the IP address and Host Name of the Linux host) and enter the following content:

#vi/etc/hosts127.0.0.1localhostlocalhost.localdomainlocalhost4localhost4.localdomain4::1localhostlocalhost.localdomainlocalhost6localhost6.localdomain6192.168.48.128MyRHEL

6. Test the connection to the Oracle database

(1) create a connclient. cpp file and enter the following content:

[Root @ MyRHEL test] # vi connclient. cpp

# Include <iostream>

# Include <string>

# Include <occi. h>

UsingNamespacestd;

UsingNamespaceoracle: Occi;

Intmain()

{

Environment* Env;

Connection* Conn;

Statement* Stmt;

String struser("Scott");

String strpwd("Orcl0991");

String strconn_string("10.208.17.206: 1521/xe");

Env= Environment: CreateEnvironment(Environment: OBJECT);

Conn= Env-> CreateConnection(Struser, Strpwd, Strconn_string);

If(NULL! = Conn)

Cout<"Conn success"<Endl;

Else

Cout<"Conn failed"<Endl;

String strsql("Select deptno, dname from dept");

Stmt= Conn-> CreateStatement(Strsql);

ResultSet* Rset= Stmt-> ExecuteQuery();

While(Rset-> Next()){

Intdeptno= Rset-> GetInt(1);

String dname= Rset-> GetString(2);

Cout<"Deptno ="<Deptno<", Dname ="<Dname<Endl;

}

Stmt-> CloseResultSet(Rset);

Conn-> TerminateStatement(Stmt);

Env-> TerminateConnection(Conn);

Environment: TerminateEnvironment(Env);

Return0;

}

(2) Compile and run:

[root@MyRHELtest]#g++-oconnclientconnclient.cpp-L/usr/lib/oracle/11.2/client64/lib-I/usr/include/oracle/11.2/client64/-locci-lclntsh/usr/lib64/libstdc++.so.6[root@MyRHELtest]#./connclientconnsuccessdeptno=10,dname=ACCOUNTINGdeptno=20,dname=RESEARCHdeptno=30,dname=SALESdeptno=40,dname=OPERATIONS