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Clear raw_fd_ostream error string on success and explain behavior in

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documentation.

Add C++ header marker.

llvm-svn: 57923
This commit is contained in:
Daniel Dunbar 2008-10-21 19:53:10 +00:00
parent c7d4f28254
commit 1ca20df437
2 changed files with 11 additions and 7 deletions
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9
llvm/include/llvm/Support/raw_ostream.h
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@ -1,4 +1,4 @@
//===--- raw_ostream.h - Raw output stream --------------------------------===//
//===--- raw_ostream.h - Raw output stream ----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
@ -152,9 +152,10 @@ class raw_fd_ostream : public raw_ostream {
int FD;
bool ShouldClose;
public:
/// raw_fd_ostream - Open the specified file for writing. If an error occurs,
/// information about the error is put into ErrorInfo, and the stream should
/// be immediately destroyed.
/// raw_fd_ostream - Open the specified file for writing. If an
/// error occurs, information about the error is put into ErrorInfo,
/// and the stream should be immediately destroyed; the string will
/// be empty if no error occurred.
raw_fd_ostream(const char *Filename, std::string &ErrorInfo);
/// raw_fd_ostream ctor - FD is the file descriptor that this writes to. If

9
llvm/lib/Support/raw_ostream.cpp
View File

@ -196,10 +196,13 @@ void format_object_base::home() {
// raw_fd_ostream
//===----------------------------------------------------------------------===//
/// raw_fd_ostream - Open the specified file for writing. If an error occurs,
/// information about the error is put into ErrorInfo, and the stream should
/// be immediately destroyed.
/// raw_fd_ostream - Open the specified file for writing. If an error
/// occurs, information about the error is put into ErrorInfo, and the
/// stream should be immediately destroyed; the string will be empty
/// if no error occurred.
raw_fd_ostream::raw_fd_ostream(const char *Filename, std::string &ErrorInfo) {
ErrorInfo.clear();
// Handle "-" as stdout.
if (Filename[0] == '-' && Filename[1] == 0) {
FD = STDOUT_FILENO;