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e4f62e4608
* It is tough to contribute to a project that doesn't use a formatter, * It is extra hard to contribute to a project which has configured the formatter, but ignores it for some files * Code formatting makes it harder to hide obscure / weird bugs by accident or on purpose, Let's rip the bandaid off? Note that PRs currently in flight should be able to be merged relatively easily by applying `clang-format` to their tip prior to merge.
34 lines
1.1 KiB
C++
34 lines
1.1 KiB
C++
#ifdef _WIN32
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# include "nix/util/windows-error.hh"
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# include <error.h>
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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namespace nix::windows {
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std::string WinError::renderError(DWORD lastError)
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{
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LPSTR errorText = NULL;
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FormatMessageA(
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FORMAT_MESSAGE_FROM_SYSTEM // use system message tables to retrieve error text
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| FORMAT_MESSAGE_ALLOCATE_BUFFER // allocate buffer on local heap for error text
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| FORMAT_MESSAGE_IGNORE_INSERTS, // Important! will fail otherwise, since we're not (and CANNOT) pass
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// insertion parameters
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NULL, // unused with FORMAT_MESSAGE_FROM_SYSTEM
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lastError,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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(LPTSTR) &errorText, // output
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0, // minimum size for output buffer
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NULL); // arguments - see note
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if (NULL != errorText) {
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std::string s2{errorText};
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LocalFree(errorText);
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return s2;
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}
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return fmt("CODE=%d", lastError);
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}
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} // namespace nix::windows
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#endif
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