C++ c+中的boost:：iostreams:：gzip#u解压缩程序出现奇怪错误+；

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我正在开发C++中的Boost压缩解压缩程序。 我的代码如下：

#include <stdio.h>
#include <vector>
#include <string>

#include <fstream>
#include <iostream>
#include <boost/iostreams/filtering_streambuf.hpp>
#include <boost/iostreams/copy.hpp>
#include <boost/iostreams/filter/gzip.hpp>

char *txtFile   = "D:/Temp/plainTest.txt";
char *txtFile2  = "D:/Temp/plainTest_.txt";
char *binFile   = "D:/Temp/plainTest.bin";

// compress
std::ifstream inStream(txtFile, std::ios_base::in);
std::ofstream outStream(binFile, std::ios_base::out);
boost::iostreams::filtering_streambuf< boost::iostreams::input> in;
in.push( boost::iostreams::gzip_compressor());
in.push( inStream );
boost::iostreams::copy(in, outStream);

// decompress
std::ifstream inStream2(binFile, std::ios_base::in);
std::ofstream outStream2(txtFile2, std::ios_base::out);
boost::iostreams::filtering_streambuf< boost::iostreams::input> in2;
in2.push( boost::iostreams::gzip_decompressor());
in2.push( inStream2 );
boost::iostreams::copy(in2, outStream2);   --->   this line gives me the following error

这给了我一个错误

First-chance exception at 0x75692EEC in C_test.exe: Microsoft C++ exception: boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::iostreams::zlib_error> > at memory location 0x00D8E074.

If there is a handler for this exception, the program may be safely continued.

但有趣的是，如果我从明文中删除ofs，就像

The following line is in error

std::ofstream
The compiler would've spit out a warning (at least) if your file was called jest; but 

错误消失了，它将生成plainText2.txt perfect

我做错了什么

---

编辑我指出了该行的错误。

我认为您需要指定输出流为二进制：

std::ofstream outStream(binFile, std::ios_base::binary);

---

然后，在写入之后，执行outStream.close（）（以确保压缩输出被刷新；您可以调用flush（），但close（）更适合所有文件系统）。然后，也用

binary

打开文件进行读取。注：无需指定

std:：ios_base:：in

（

out

），因为它是std:：ifstream（ofstream）的默认值。

触发异常的代码行是哪一行？另外，在尝试再次打开文件进行读取之前，您应该关闭

outStream

。@MattMcNabb我编辑并指出了给出错误的行。写入bin文件时，没有错误。读取bin文件并解压缩时会出现错误。@JoshuaSon：我的建议仍然有效。试试看。@JohnZwinck:我有同样的崩溃问题，类似的解压代码，你的答案不起作用。

The following line is in error

std::ofstream
The compiler would've spit out a warning (at least) if your file was called jest; but 

std::ofstream outStream(binFile, std::ios_base::binary);