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Win32/Process.inc: [PR8527] Process::FileDescriptorIsDisplayed(fd) should not check by FILE_TYPE_CHAR. It must be better to check it with Console API.

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The special file "NUL" is FILE_TYPE_CHAR with GetFileType(h). It was treated as display device and discarding output to NUL had failed. (eg. opt -o nul)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118678 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
NAKAMURA Takumi 2010-11-10 08:37:47 +00:00
parent 867fe8570f
commit 46cf7c5fd6
1 changed files with 2 additions and 1 deletions
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lib/System/Win32/Process.inc
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@ -132,7 +132,8 @@ bool Process::StandardErrIsDisplayed() {
}
bool Process::FileDescriptorIsDisplayed(int fd) {
return GetFileType((HANDLE)_get_osfhandle(fd)) == FILE_TYPE_CHAR;
DWORD Mode; // Unused
return (GetConsoleMode((HANDLE)_get_osfhandle(fd), &Mode) != 0);
}
unsigned Process::StandardOutColumns() {