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Hide the DOUT static variable behind a function interface.

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llvm-svn: 76425
This commit is contained in:
David Greene 2009-07-20 16:16:06 +00:00
parent d5865e6c60
commit 5144b046cc
2 changed files with 14 additions and 2 deletions
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8
include/llvm/Support/Debug.h
View File

@ -61,6 +61,11 @@ bool isCurrentDebugType(const char *Type);
do { if (DebugFlag && isCurrentDebugType(DEBUG_TYPE)) { X; } } while (0)
#endif
/// getNullOutputStream - Return a null string that does not output
/// anything. This hides the static variable from other modules.
///
OStream &getNullOutputStream();
/// getErrorOutputStream - Returns the error output stream (std::cerr). This
/// places the std::c* I/O streams into one .cpp file and relieves the whole
/// program from having to have hundreds of static c'tor/d'tors for them.
@ -68,8 +73,7 @@ bool isCurrentDebugType(const char *Type);
OStream &getErrorOutputStream(const char *DebugType);
#ifdef NDEBUG
static llvm::OStream NullStream(0);
#define DOUT llvm::NullStream
#define DOUT llvm::getNullOutputStream()
#else
#define DOUT llvm::getErrorOutputStream(DEBUG_TYPE)
#endif

8
lib/Support/Debug.cpp
View File

@ -64,6 +64,14 @@ bool llvm::isCurrentDebugType(const char *DebugType) {
#endif
}
/// getNullOutputStream - Return a null string that does not output
/// anything. This hides the static variable from other modules.
///
OStream &llvm::getNullOutputStream() {
static llvm::OStream NullStream(0);
return NullStream;
}
// getErrorOutputStream - Returns the error output stream (std::cerr). This
// places the std::c* I/O streams into one .cpp file and relieves the whole
// program from having to have hundreds of static c'tor/d'tors for them.