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-rw-r--r--lib/Support/raw_ostream.cpp92
1 files changed, 92 insertions, 0 deletions
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index 39686cbcc6..b1209a2da7 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -33,6 +33,98 @@ using namespace llvm;
// An out of line virtual method to provide a home for the class vtable.
void raw_ostream::handle() {}
+raw_ostream &raw_ostream::operator<<(unsigned long N) {
+ // Zero is a special case.
+ if (N == 0)
+ return *this << '0';
+
+ char NumberBuffer[20];
+ char *EndPtr = NumberBuffer+sizeof(NumberBuffer);
+ char *CurPtr = EndPtr;
+
+ while (N) {
+ *--CurPtr = '0' + char(N % 10);
+ N /= 10;
+ }
+ return write(CurPtr, EndPtr-CurPtr);
+}
+
+raw_ostream &raw_ostream::operator<<(long N) {
+ if (N < 0) {
+ if (OutBufCur >= OutBufEnd)
+ flush_impl();
+ *OutBufCur++ = '-';
+
+ N = -N;
+ }
+
+ return this->operator<<(static_cast<unsigned long>(N));
+}
+
+raw_ostream &raw_ostream::operator<<(unsigned long long N) {
+ // Zero is a special case.
+ if (N == 0)
+ return *this << '0';
+
+ char NumberBuffer[20];
+ char *EndPtr = NumberBuffer+sizeof(NumberBuffer);
+ char *CurPtr = EndPtr;
+
+ while (N) {
+ *--CurPtr = '0' + char(N % 10);
+ N /= 10;
+ }
+ return write(CurPtr, EndPtr-CurPtr);
+}
+
+raw_ostream &raw_ostream::operator<<(long long N) {
+ if (N < 0) {
+ if (OutBufCur >= OutBufEnd)
+ flush_impl();
+ *OutBufCur++ = '-';
+
+ N = -N;
+ }
+
+ return this->operator<<(static_cast<unsigned long long>(N));
+}
+
+raw_ostream &raw_ostream::write(const char *Ptr, unsigned Size) {
+ if (OutBufCur+Size > OutBufEnd)
+ flush_impl();
+
+ // Handle short strings specially, memcpy isn't very good at very short
+ // strings.
+ switch (Size) {
+ case 4: OutBufCur[3] = Ptr[3]; // FALL THROUGH
+ case 3: OutBufCur[2] = Ptr[2]; // FALL THROUGH
+ case 2: OutBufCur[1] = Ptr[1]; // FALL THROUGH
+ case 1: OutBufCur[0] = Ptr[0]; // FALL THROUGH
+ case 0: break;
+ default:
+ // Normally the string to emit is shorter than the buffer.
+ if (Size <= unsigned(OutBufEnd-OutBufStart)) {
+ memcpy(OutBufCur, Ptr, Size);
+ break;
+ }
+
+ // If emitting a string larger than our buffer, emit in chunks. In this
+ // case we know that we just flushed the buffer.
+ while (Size) {
+ unsigned NumToEmit = OutBufEnd-OutBufStart;
+ if (Size < NumToEmit) NumToEmit = Size;
+ assert(OutBufCur == OutBufStart);
+ memcpy(OutBufStart, Ptr, NumToEmit);
+ Ptr += NumToEmit;
+ OutBufCur = OutBufStart + NumToEmit;
+ flush_impl();
+ }
+ break;
+ }
+ OutBufCur += Size;
+ return *this;
+}
+
//===----------------------------------------------------------------------===//
// raw_fd_ostream
//===----------------------------------------------------------------------===//