Use boost in C + +::p roperty_tree Read parse INI file

Boost official website http://www.boost.org/

Download Page http://sourceforge.net/projects/boost/files/boost/1.53.0/

I downloaded the boost_1_53_0.tar.gz.

Using the system Ubuntu 12.10

First, decompression

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1. TAR-ZXVF boost_1_53_0.tar.gz

Get a folder Boost_1_53_0, copy its sub-directories boost to the following path

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1. /usr/local/include/

Second, write the class file to read the parse INI

Ini.h

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2. /*
4. * file:ini.h
6. * Author: [email protected]
8. *
10. * Created on March 18, 2013, 2:51
12. */
16. #ifndef Ini_h
18. #define Ini_h
24. #include <boost/property_tree/ptree.hpp>
26. #include <boost/property_tree/ini_parser.hpp>
28. #include <string>
30. Using namespace std;
36. Class ini{
38. Public
40. Ini (string ini_file);
42. String get (string path);
44. short int Errcode ();
46. Private
48. short int err_code;
50. Boost::p roperty_tree::p tree m_pt;
52. };
56. #endif/* Ini_h */

Ini.cpp

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2. #include "ini.h"
8. Ini::ini (String ini_file) {
10. if (Access (INI_FILE.C_STR (), 0) = = 0) {
12. this->err_code = 0;
14. Boost::p Roperty_tree::ini_parser::read_ini (Ini_file, this->m_pt);
16. } Else {
18. This->err_code = 1;
20. }
22. }
26. Short Ini::errcode () {
28. return this->err_code;
30. }
34. String Ini::get (string path) {
36. if (This->err_code = = 0) {
38. return this->m_pt.get<string> (path);
40. } Else {
42. return "";
44. }
46. }

Third, testing

Main.cpp

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2. #include <cstdlib>
4. #include <stdio.h>
6. #include <iostream>
8. #include <string>
10. #include "ini.h"
14. Using namespace std;
22. /*
24. *
26. */
28. int main (int argc, char** argv) {
30. String ini_file = "/home/share/code/cppclass/test1.ini";
32. INI ini (ini_file);
36. Cout<<ini.get ("PUBLIC.ABC") <<endl;
42. return 0;
44. }