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#ifndef AOCUTILS_H_INCLUDED
#define AOCUTILS_H_INCLUDED
#include <stdbool.h>
struct TextGrid {
unsigned cols, rows;
char *data; // may have '\n' at end of rows
};
struct RectangularMap {
int cols, rows;
char *data;
};
char RMcharat(struct RectangularMap *sm, int col, int row);
char *RMcharptr(struct RectangularMap *sm, int col, int row);
void RMcopy(struct RectangularMap *restrict dst,
const struct RectangularMap *restrict src);
void RMaddline(struct RectangularMap *sm, const char *lin);
void RMfree(struct RectangularMap *sm);
long long unsigned upow(unsigned base, unsigned exponent);
void md5mini(unsigned char *dstarr, const char *src);
bool TGvalid(struct TextGrid *tg, unsigned col, unsigned row);
char *TGcharptr(struct TextGrid *tg, unsigned col, unsigned row);
unsigned TGcol(struct TextGrid *tg, char *p);
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