float power2of(float e);
float log2of(float x);
-const string HEXDIGITS = "0123456789ABCDEF0123456789abcdef";
-#define HEXDIGIT_TO_DEC_RAW(d) (strstrofs(HEXDIGITS, (d), 0))
-#define HEXDIGIT_TO_DEC(d) ((HEXDIGIT_TO_DEC_RAW(d) | 0x10) - 0x10)
-#define DEC_TO_HEXDIGIT(d) (substring(HEXDIGITS, (d), 1))
-
vector rgb_to_hsl(vector rgb);
vector hsl_to_rgb(vector hsl);
vector rgb_to_hsv(vector rgb);
string xencode(float f);
float xdecode(string s);
-#ifdef CSQC
-entity ReadCSQCEntity();
-#endif
-
#ifndef MENUQC
string strtolower(string s);
#endif