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-rw-r--r--include/llvm/Support/raw_ostream.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/llvm/Support/raw_ostream.h b/include/llvm/Support/raw_ostream.h
index a01d4cdb04..dbad40ca91 100644
--- a/include/llvm/Support/raw_ostream.h
+++ b/include/llvm/Support/raw_ostream.h
@@ -240,6 +240,11 @@ public:
/// outputting colored text, or before program exit.
virtual raw_ostream &resetColor() { return *this; }
+ /// This function determines if this stream is connected to a "tty" or
+ /// "console" window. That is, the output would be displayed to the user
+ /// rather than being put on a pipe or stored in a file.
+ virtual bool is_displayed() const { return false; }
+
//===--------------------------------------------------------------------===//
// Subclass Interface
//===--------------------------------------------------------------------===//
@@ -370,6 +375,8 @@ public:
virtual raw_ostream &changeColor(enum Colors colors, bool bold=false,
bool bg=false);
virtual raw_ostream &resetColor();
+
+ virtual bool is_displayed() const;
};
/// raw_stdout_ostream - This is a stream that always prints to stdout.