File aocutils.h artifact b9fb3ba61b part of check-in 4609a146ec

#ifndef AOCUTILS_H_INCLUDED
#define AOCUTILS_H_INCLUDED

size_t text2array(unsigned **dst, const char *txt);
size_t slurp(char **dst, const char *filename);
unsigned distance(unsigned a, unsigned b);
unsigned max3u(unsigned a, unsigned b, unsigned c);
unsigned min3u(unsigned a, unsigned b, unsigned c);

#endif