lua/log2.patch

   1 --- lua-5.3.5/src/lmathlib.c
   2 +++ lua-5.3.5/src/lmathlib.c
   3 @@ -176,6 +176,21 @@
   4    return 1;
   5  }
   6
   7 +double log2(double x)
   8 +{
   9 +  return log(x) / log(2.0);
  10 +}
  11 +
  12 +float log2f(float x)
  13 +{
  14 +  return log(x) / log(2.0f);
  15 +}
  16 +
  17 +long double log2l(long double x)
  18 +{
  19 +  return log(x) / log(2.0l);
  20 +}
  21 +
  22  static int math_log (lua_State *L) {
  23    lua_Number x = luaL_checknumber(L, 1);
  24    lua_Number res;