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some improvements in stack control

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This commit is contained in:
Roberto Ierusalimschy
2002-03-20 09:52:32 -03:00
parent 48e732e07d
commit 63a614e145
4 changed files with 22 additions and 17 deletions
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9
ldo.h
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@@ -1,5 +1,5 @@
/*
** $Id: ldo.h,v 1.1 2001/11/29 22:14:34 rieru Exp rieru $
** $Id: ldo.h,v 1.40 2002/01/30 17:27:53 roberto Exp roberto $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
@@ -19,7 +19,12 @@
#define incr_top(L) \
{if (L->top >= L->stack_last) luaD_growstack(L, 1); L->top++;}
#define luaD_checkstack(L,n) if (L->stack_last-(n)<=L->top) luaD_growstack(L, n)
#define luaD_checkstack(L,n) \
if ((char *)L->stack_last - (char *)L->top <= (n)*(int)sizeof(TObject)) \
luaD_growstack(L, n)
#define savestack(L,p) ((char *)(p) - (char *)L->stack)
#define restorestack(L,n) ((TObject *)((char *)L->stack + (n)))
void luaD_lineHook (lua_State *L, int line, lua_Hook linehook);