Calling string() on environment variables with empty values fails on Windows

When I have environment variables with no values (somehow I have two on my system - COMPLUS_InstallRoot and COMPLUS_Version), when I iterate over values of boost::process::environment::current() and try to call string() on the empty value, it fails.


boost::unordered_map<std::string, std::string> currentProcessEnvironment;

for (const auto& env : boost::process::environment::current())
{
    currentProcessEnvironment[env.key().string()] = env.value().string();    // fails if env.value().empty()
}

Fix for this should be simple, all needed should be just to apply this for size_as_utf8 and convert_to_utf8: f372a9a

Do you want to create a PR?

I am too busy with other things. I can create PR later but I don't know when.

@aliquis162

@aliquis162 + @klemens-morgenstern
I created a PR for this: #560

Ok, I'll merge it after the current release is complete.

fix(ipc):子进程环境构造逐项隔离空值与不可转换条目

@klemens-morgenstern

I'll merge it after the current release is complete.

@klemens-morgenstern: Any update on this? Boost 1.92.0 has been released approx. a month ago, so now the pull request fixing this issue (#560) could be reviewed.

guard WideCharToMultiByte() against empty strings

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Calling string() on environment variables with empty values fails on Windows #554

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Calling string() on environment variables with empty values fails on Windows #554

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klemens-morgenstern commented on May 1, 2026

aliquis162 commented on May 6, 2026

striezel commented on Jul 12, 2026

klemens-morgenstern commented on Jul 12, 2026

striezel commented on Sep 7, 2026

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