1 files changed, 42 insertions, 0 deletions
diff --git a/Src/pfc/grow_buf.h b/Src/pfc/grow_buf.h
new file mode 100644
index 00000000..ab039ff8
--- /dev/null
+++ b/Src/pfc/grow_buf.h
@@ -0,0 +1,42 @@
+#ifndef _PFC_GROW_BUF_H_
+#define _PFC_GROW_BUF_H_
+
+class grow_buf
+{
+private:
+	void * ptr;
+	int size,used;
+	void makespace(int);
+public:
+	grow_buf(int init_size = 0)
+	{
+		if (init_size<8) init_size=8;
+		size = 0;
+		used = 0;
+		ptr = 0;
+		makespace(init_size);
+	}
+	
+	~grow_buf() {reset();}
+
+	inline const void * get_ptr_c() const {return ptr;}
+	inline void * get_ptr() {return ptr;}
+	inline int get_size() const {return used;}
+	inline void truncate(int z) {if (z<used) used=z;}
+
+	void * finish();
+	void reset();
+
+	bool write(const void * data, size_t bytes);
+	void write_ptr(const void * data, int bytes,int offset);
+
+	inline void write_byte(BYTE b) {write(&b,1);}
+	inline void write_word(WORD w) {write(&w,2);}
+	inline void write_dword(DWORD dw) {write(&dw,4);}
+	inline void write_byte_ptr(BYTE b,int ptr) {write_ptr(&b,1,ptr);}
+	inline void write_word_ptr(WORD w,int ptr) {write_ptr(&w,2,ptr);}
+	inline void write_dword_ptr(DWORD dw,int ptr) {write_ptr(&dw,4,ptr);}
+};
+
+
+#endif
+\ No newline at end of file