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new interface to "lua_seterrormethod" and "lua_settagmethod", to

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allow the use of Lua functions too.
This commit is contained in:
Roberto Ierusalimschy
1997-06-19 15:03:04 -03:00
parent a38f093f05
commit 88f020b626
5 changed files with 25 additions and 22 deletions
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5
mathlib.c
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@@ -3,7 +3,7 @@
** Mathematics library to LUA
*/
char *rcs_mathlib="$Id: mathlib.c,v 1.23 1997/04/06 14:08:08 roberto Exp roberto $";
char *rcs_mathlib="$Id: mathlib.c,v 1.24 1997/06/09 17:30:10 roberto Exp roberto $";
#include <stdlib.h>
#include <math.h>
@@ -210,7 +210,8 @@ static struct luaL_reg mathlib[] = {
void mathlib_open (void)
{
luaL_openlib(mathlib, (sizeof(mathlib)/sizeof(mathlib[0])));
lua_pushcfunction(math_pow);
lua_pushnumber(0); /* to get its tag */
lua_settagmethod(lua_tag(lua_pop()), "pow", math_pow);
lua_settagmethod(lua_tag(lua_pop()), "pow");
}