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#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
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