initial commit

oscar64/include/opp/sstream.cpp

@@ -0,0 +1,86 @@
+#include "sstream.h"
+#include <stdlib.h>
+
+namespace opp {
+
+ostringstream::ostringstream(void)
+{
+	mBuffer = nullptr;
+	mBFill = mBSize = 0;
+}
+
+ostringstream::~ostringstream(void)
+{
+	free(mBuffer);
+}
+
+void ostringstream::bput(char ch)
+{
+	if (!mBuffer)
+	{
+		mBSize = 15;
+		mBFill = 0;
+		mBuffer = (char *)malloc(15);
+	}
+	else if (mBFill == mBSize)
+	{
+		mBSize *= 2;
+		char * b = (char *)malloc(mBSize);
+		for(char i=0; i<mBFill; i++)
+			b[i] = mBuffer[i];
+		free(mBuffer);
+		mBuffer = b;
+	}
+	mBuffer[mBFill++] = ch;
+}
+
+string ostringstream::str(void) const
+{
+	return string(mBuffer, mBFill);
+}
+
+void ostringstream::str(const string & str)
+{
+	mBFill = str.size();
+	if (mBFill > mBSize)
+	{
+		free(mBuffer);
+		mBSize = mBFill;
+		mBuffer = (char *)malloc(mBSize);
+	}
+	str.copyseg(mBuffer, 0, mBFill);
+}
+
+istringstream::istringstream(const string & str)
+	: mString(str), mSPos(0)
+{}
+
+istringstream::~istringstream(void)
+{}
+
+string istringstream::str(void) const
+{
+	return mString;	
+}
+
+void istringstream::str(const string & str)
+{
+	mState = goodbit;
+	mString = str;
+	mSPos = 0;
+}
+
+
+void istringstream::refill(void)
+{
+	mBufferFill = 0;
+	mBufferPos = 0;
+
+	char ch;
+	while (mSPos < mString.size() && mBufferFill < 32)
+	{
+		mBuffer[mBufferFill++] = mString[mSPos++];
+	}
+}
+
+}