8000 The boost::process example and my project also don't build on the latest version of boost 1.88.0 · Issue #1034 · boostorg/boost · GitHub
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The boost::process example and my project also don't build on the latest version of boost 1.88.0 #1034

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igorekRnd opened this issue May 5, 2025 · 2 comments
Open

The boost::process example and my project also don't build on the latest version of boost 1.88.0 #1034

igorekRnd opened this issue May 5, 2025 · 2 comments

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@igorekRnd
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The example is taken from the previous version of boost 1.87.0 (https://www.boost.org/doc/libs/1_87_0/doc/html/process.html), because the latest version 1.88.0 does not contain documentation on Process.

#include <boost/process.hpp>

#include <string>
#include <iostream>

using namespace boost::process;

int main()
{
    ipstream pipe_stream;
    child c("gcc --version", std_out > pipe_stream);

    std::string line;

    while (pipe_stream && std::getline(pipe_stream, line) && !line.empty())
        std::cerr << line << std::endl;

    c.wait();
}

assembly line: LANG=C g++ test.cpp

compilation errors:

test.cpp:10:5: error: 'ipstream' was not declared in this scope
   10 |     ipstream pipe_stream;
      |     ^~~~~~~~
test.cpp:11:5: error: 'child' was not declared in this scope
   11 |     child c("gcc --version", std_out > pipe_stream);
      |     ^~~~~
test.cpp:15:12: error: 'pipe_stream' was not declared in this scope
   15 |     while (pipe_stream && std::getline(pipe_stream, line) && !line.empty())
      |            ^~~~~~~~~~~
test.cpp:18:5: error: 'c' was not declared in this scope
   18 |     c.wait();
      |     ^
@igorekRnd
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dublicate from boostorg/process#480

@igorekRnd
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To build the project I had to change the code a little:

#define BOOST_PROCESS_VERSION 1

#if BOOST_VERSION < 108800
#include <boost/process.hpp>
#else
#include <boost/process/v1/child.hpp>
#include <boost/process/v1/io.hpp>
#include <boost/process/v1/pipe.hpp>
#include <boost/process/v1/search_path.hpp>
#endif

namespace bp = boost::process;

In the future I plan to switch to Process::v2

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