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福建金融公司网站建设,外贸推广有哪些好的方式,有做外贸个人网站,一建报考条件及专业要求1、前提条件 linux平台/CentOS 7 下要编译安装Boost除gcc和gcc-c之外，还需要两个开发库：bzip2-devel 和python-devel ，因此在安装前应该先保证这两个库已经安装。安装指令: yum install bzip2 bzip2-devel bzip2-libs python-devel Cent…

1、前提条件

linux平台/CentOS 7 下要编译安装Boost除gcc和gcc-c++之外，还需要两个开发库：bzip2-devel 和python-devel ，因此在安装前应该先保证这两个库已经安装。

安装指令:

yum install bzip2 bzip2-devel bzip2-libs python-devel

CentOS 7安装效果：

[root@localhost ~]# yum install bzip2 bzip2-devel bzip2-libs python-devel
已加载插件：fastestmirror
Determining fastest mirrors* base: mirrors.ustc.edu.cn* extras: mirrors.ustc.edu.cn* updates: mirrors.163.com
base                                                                                                                     | 3.6 kB  00:00:00
docker-ce-stable                                                                                                         | 3.5 kB  00:00:00
extras                                                                                                                   | 2.9 kB  00:00:00
updates                                                                                                                  | 2.9 kB  00:00:00
(1/2): docker-ce-stable/7/x86_64/primary_db                                                                              | 117 kB  00:00:26
(2/2): updates/7/x86_64/primary_db                                                                                       |  23 MB  00:02:58
软件包 bzip2-libs-1.0.6-13.el7.x86_64 已安装并且是最新版本
正在解决依赖关系
--> 正在检查事务
*********

2、安装

Boost 官网下载地址:https://www.boost.org/

将下载的boost 源码：boost_1_83_0_rc1.tar.gz，上传CentOS 7 指定目录，我的目录地址为:/usr/local/source_code/.

CentOS 7 指令效果：

[root@localhost ~]# cd /usr/local/source_code/
[root@localhost source_code]# ll
总用量 146560
-rw-r--r--. 1 root root  144648962 10月 13 10:33 boost_1_83_0_rc1.tar.gz
drwxr-xr-x. 2 root root         42 9月  18 17:32 c_demo
drwxrwxr-x. 6 root root       4096 10月 10 09:44 hiredis-1.2.0
-rw-r--r--. 1 root root     126216 10月 10 09:42 hiredis-1.2.0.tar.gz
drwxr-xr-x. 2 root root         50 10月 10 10:37 hiredis_demo
drwxr-xr-x. 5  500 users      8192 9月   4 15:28 jpeg-9e
-rw-r--r--. 1 root root    1046935 9月   4 15:23 jpegsrc.v9e.tar.gz
-rw-r--r--. 1 root root    4234219 8月  31 16:22 release-3.4.13.tar.gz
drwxr-xr-x. 2 root root         52 10月 10 12:54 zookeeper_demo
drwxrwxr-x. 8 root root        259 8月  31 16:33 zookeeper-release-3.4.13

解压Boost 源码并安装，执行如下命令：

# 解压boost 源码
tar -zxvf boost_1_83_0_rc1.tar.gz
# 进入boost 源码目录
cd boost_1_83_0
# 启动 boost 安装指南脚本./bootstrap.sh
# 安装boost 全部 模块
./b2 install --with=all

CentOS 7 指令效果：

# 进入Boost 源码目录
[root@localhost source_code]# cd boost_1_83_0
# 启动Boost 库安装指南sh
[root@localhost boost_1_83_0]# ./bootstrap.sh
Building B2 engine..###
###
### Using 'gcc' toolset.
###
###g++ (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
Copyright © 2015 Free Software Foundation, Inc.
本程序是自由软件；请参看源代码的版权声明。本软件没有任何担保；
包括没有适销性和某一专用目的下的适用性担保。###
###> g++ -x c++ -std=c++11 -O2 -s -DNDEBUG builtins.cpp class.cpp command.cpp compile.cpp constants.cpp cwd.cpp debug.cpp debugger.cpp execcmd.cpp execnt.cpp execunix.cpp filesys.cpp filent.cpp fileunix.cpp frames.cpp function.cpp glob.cpp hash.cpp hcache.cpp hdrmacro.cpp headers.cpp jam_strings.cpp jam.cpp jamgram.cpp lists.cpp make.cpp make1.cpp md5.cpp mem.cpp modules.cpp native.cpp object.cpp option.cpp output.cpp parse.cpp pathnt.cpp pathsys.cpp pathunix.cpp regexp.cpp rules.cpp scan.cpp search.cpp startup.cpp subst.cpp sysinfo.cpp timestamp.cpp variable.cpp w32_getreg.cpp modules/order.cpp modules/path.cpp modules/property-set.cpp modules/regex.cpp modules/sequence.cpp modules/set.cpp -o b2tools/build/src/engine/b2
Detecting Python version... 2.7
Detecting Python root... /usr
Unicode/ICU support for Boost.Regex?... /usr
Generating B2 configuration in project-config.jam for gcc...Bootstrapping is done. To build, run:./b2To generate header files, run:./b2 headers
******
# 安装Boost 模块
[root@localhost boost_1_83_0]# ./b2 install --with=all
Performing configuration checks- default address-model    : 64-bit [1]- default architecture     : x86 [1]- compiler supports SSE2   : yes [2]- compiler supports SSE4.1 : yes [2]- has std::atomic_ref      : no [2]- has -Wl,--no-undefined   : yes [2]- has statx                : no [2]- has statx syscall        : no [2]- has init_priority attribute : yes [2]- has stat::st_blksize     : yes [2]- has stat::st_mtim        : yes [2]- has stat::st_mtimensec   : no [2]- has stat::st_mtimespec   : no [2]- has stat::st_birthtim    : no [2]- has stat::st_birthtimensec : no [2]- has stat::st_birthtimespec : no [2]- has fdopendir(O_NOFOLLOW) : yes [2]- has dirent::d_type       : yes [2]- has POSIX *at APIs       : yes [2]- cxx11_auto_declarations  : no [2]- cxx11_auto_declarations  : no [3]- has_icu builds           : yes [2]
warning: Graph library does not contain MPI-based parallel components.
note: to enable them, add "using mpi ;" to your user-config.jam.
note: to suppress this message, pass "--without-graph_parallel" to bjam.- zlib                     : yes- bzip2                    : yes- lzma                     : no- zstd                     : no- has_lzma_cputhreads builds : no [2]- cxx11_constexpr          : no [2]- cxx11_constexpr          : no [3]- iconv (libc)             : yes [2]- icu                      : yes [2]- iconv (libc)             : yes [3]
******

3、Boost 快速上手Demo

在指定目录(/usr/local/source_code) ，创建boost 测试目录(boost_demo)。指令如下：

[root@localhost source_code]# mkdir boost_demo
[root@localhost source_code]# cd boost_demo/
[root@localhost boost_demo]# ll
总用量 0

在boost_demo 目录下，创建boost 测试程序：accumulators_demo.cpp。指令如下:

[root@localhost boost_demo]# vi accumulators_demo.cpp

编辑 accumulators_demo.cpp 文件内容如下:

#include <iostream>
#include <boost/accumulators/accumulators.hpp>
#include <boost/accumulators/statistics/stats.hpp>
#include <boost/accumulators/statistics/mean.hpp>
#include <boost/accumulators/statistics/moment.hpp>
using namespace boost::accumulators;int main()
{// Define an accumulator set for calculating the mean and the// 2nd moment ...accumulator_set<double, stats<tag::mean, tag::moment<2> > > acc;// push in some data ...acc(1.2);acc(2.3);acc(3.4);acc(4.5);// Display the results ...std::cout << "Mean:   " << mean(acc) << std::endl;std::cout << "Moment: " << moment<2>(acc) << std::endl;return 0;
}

编译accumulators_demo.cpp 文件并执行。

[root@localhost boost_demo]# g++ accumulators_demo.cpp -o accumulators_demo
In file included from /usr/local/include/boost/function/detail/prologue.hpp:12:0,from /usr/local/include/boost/function.hpp:30,from /usr/local/include/boost/parameter/aux_/tagged_argument.hpp:88,from /usr/local/include/boost/parameter/aux_/tag.hpp:11,from /usr/local/include/boost/parameter/keyword.hpp:10,from /usr/local/include/boost/parameter/nested_keyword.hpp:10,from /usr/local/include/boost/accumulators/accumulators_fwd.hpp:229,from /usr/local/include/boost/accumulators/framework/accumulator_set.hpp:29,from /usr/local/include/boost/accumulators/accumulators.hpp:12,from accumulators_demo.cpp:2:
/usr/local/include/boost/function/detail/requires_cxx11.hpp:18:192: 附注：#pragma message：C++03 support was deprecated in Boost.Function 1.82 and will be removed in Boost.Function 1.84. Please open an issue in https://github.com/boostorg/function if you want it retained.BOOST_PRAGMA_MESSAGE("C++03 support was deprecated in Boost.Function 1.82 and will be removed in Boost.Function 1.84. Please open an issue in https://github.com/boostorg/function if you want it retained.")^
In file included from /usr/local/include/boost/bind/mem_fn.hpp:24:0,from /usr/local/include/boost/mem_fn.hpp:22,from /usr/local/include/boost/function/detail/prologue.hpp:19,from /usr/local/include/boost/function.hpp:30,from /usr/local/include/boost/parameter/aux_/tagged_argument.hpp:88,from /usr/local/include/boost/parameter/aux_/tag.hpp:11,from /usr/local/include/boost/parameter/keyword.hpp:10,from /usr/local/include/boost/parameter/nested_keyword.hpp:10,from /usr/local/include/boost/accumulators/accumulators_fwd.hpp:229,from /usr/local/include/boost/accumulators/framework/accumulator_set.hpp:29,from /usr/local/include/boost/accumulators/accumulators.hpp:12,from accumulators_demo.cpp:2:
/usr/local/include/boost/bind/detail/requires_cxx11.hpp:18:180: 附注：#pragma message：C++03 support was deprecated in Boost.Bind 1.82 and will be removed in Boost.Bind 1.84. Please open an issue in https://github.com/boostorg/bind if you want it retained.BOOST_PRAGMA_MESSAGE("C++03 support was deprecated in Boost.Bind 1.82 and will be removed in Boost.Bind 1.84. Please open an issue in https://github.com/boostorg/bind if you want it retained.")^
In file included from /usr/local/include/boost/typeof/typeof.hpp:16:0,from /usr/local/include/boost/accumulators/numeric/functional.hpp:22,from /usr/local/include/boost/accumulators/statistics/mean.hpp:14,from accumulators_demo.cpp:4:
/usr/local/include/boost/typeof/detail/requires_cxx11.hpp:14:102: 附注：#pragma message：C++03 support was deprecated in Boost.Typeof 1.82 and will be removed in Boost.Typeof 1.84.BOOST_PRAGMA_MESSAGE("C++03 support was deprecated in Boost.Typeof 1.82 and will be removed in Boost.Typeof 1.84.")^
[root@localhost boost_demo]# ll
总用量 244
-rwxr-xr-x. 1 root root 245128 10月 13 10:57 accumulators_demo
-rw-r--r--. 1 root root    678 10月 13 10:53 accumulators_demo.cpp
[root@localhost boost_demo]# ./accumulators_demo
Mean:   2.85
Moment: 9.635

4、Boost 常用库

Boost 是一组扩展了 C++ 功能的库。常用的包括：

1. Boost.Asio：包含了一套网络和底层 I/O 编程的接口，支持同步、异步操作。

2. Boost.Unordered：提供了类似 C++11 中的 std::unordered_map, std::unordered_set 等的无序容器。

3. Boost.Thread：封装了线程相关的接口，如线程类、互斥量、条件变量等。

4. Boost.Python：扩展了 Python/C++ 的转换机制，以便于在 Python 和 C++之间进行进行更灵活的程序集成。

5. Boost.Smart_Ptr：包含智能指针，如 shared_ptr，weak_ptr，scoped_ptr 等用于资源管理的类。

6. Boost.Filesystem：提供一套跨平台的文件系统访问方法。

7. Boost.Graph：提供一套图数据结构及相关算法。

8. Boost.Regex：封装了正则表达式的类。

9. Boost.Log：提供一套跨平台的日志库。

10. Boost.Date_Time：时间和日期库，提供一种简单、易于操作的方式来处理时间和日期。

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