#ifndef __BUF_H
#define __BUF_H

#include <cstdlib>
#include <cstdio>
#include <string.h>
#include <ctype.h>
#include <unistd.h>

/*
typedef struct bbuf {
	int size;     //total size
	int buf_size; //used size
	char *buf;
} bbuf;
*/

//operations on plain buffers also operations on bufer to buffer should be 
//supoorted

/*
//create new buffer without content
bbuf* bbuf_new(int size);

//set buffer value
int bbuf_set(bbuf *a, char *val, int size);
//get copy of buffer
bbuf *bbuf_copy(bbuf *buf);
//get buffer from buffer
int bbuf_get(bbuf *buf, char **val, int *size);
//resize buffer
int bbuf_realloc(bbuf *buf, int size);
//set to minimal size
int bbuf_reduce(bbuf *buf);
//increase buffer for size
int bbuf_inc(bbuf *a, char *b, int size);
//decrease buffer for size
int bbuf_dec(bbuf *a, char *b, int size);
//free buffer
int bbuf_set_max(bbuf *buf);
int bbuf_memset(bbuf *buf, char c);

int bbuf_concat(bbuf *a, bbuf *b);

int bbuf_size(bbuf *a);

int bbuf_print(bbuf *a);

void bbuf_free(bbuf *buf);
*/

class Buf
{
private:
	int cur_size;
	int buf_size;
	char *buf;
public:
	Buf(int size);
	~Buf();

	int set(char *val, int size);
	int set(char *val);
	Buf* copy();
	int get_ptr(char **val, int *size);
	int realloc(int size);
	int reduce();
	int inc(int size);
	int dec(int size);

	int set_max();
	int memset(char c);
	int concat(Buf *b);
	int size();
	int cursize();
	int print();
	int setc(int idx, char c);
	int pushc(char c);
	int getc(int idx, char *c);
	int findc(char c, int *idx);
	int popsubstring(int sz, char **val, int *size);
	int shiftleft(int n);
	int zero();
	bool isempty();
	int empty();
	int set_size(int size);
};

#endif