diff options
Diffstat (limited to 'src/lmathlib.c')
| -rw-r--r-- | src/lmathlib.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/lmathlib.c b/src/lmathlib.c index 002c508b..4f2ec60a 100644 --- a/src/lmathlib.c +++ b/src/lmathlib.c @@ -1,5 +1,5 @@ /* -** $Id: lmathlib.c,v 1.114 2014/12/27 20:32:26 roberto Exp $ +** $Id: lmathlib.c,v 1.115 2015/03/12 14:04:04 roberto Exp $ ** Standard mathematical library ** See Copyright Notice in lua.h */ @@ -183,6 +183,9 @@ static int math_log (lua_State *L) { res = l_mathop(log)(x); else { lua_Number base = luaL_checknumber(L, 2); +#if !defined(LUA_USE_C89) + if (base == 2.0) res = l_mathop(log2)(x); else +#endif if (base == 10.0) res = l_mathop(log10)(x); else res = l_mathop(log)(x)/l_mathop(log)(base); } |