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more freedom in handling memory-allocation errors (not all allocations

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automatically raise an error), which allows fixing a bug when resizing
a table.
This commit is contained in:
Roberto Ierusalimschy
2017-12-08 15:28:25 -02:00
parent 40f823ec90
commit e663a24ab0
8 changed files with 139 additions and 98 deletions
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9
ldo.h
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@@ -1,5 +1,5 @@
/*
** $Id: ldo.h,v 2.35 2017/11/23 16:35:54 roberto Exp roberto $
** $Id: ldo.h,v 2.36 2017/11/23 18:29:41 roberto Exp roberto $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
@@ -22,7 +22,8 @@
*/
#define luaD_checkstackaux(L,n,pre,pos) \
if (L->stack_last - L->top <= (n)) \
{ pre; luaD_growstack(L, n); pos; } else { condmovestack(L,pre,pos); }
{ pre; luaD_growstack(L, n, 1); pos; } \
else { condmovestack(L,pre,pos); }
/* In general, 'pre'/'pos' are empty (nothing to save) */
#define luaD_checkstack(L,n) luaD_checkstackaux(L,n,(void)0,(void)0)
@@ -55,8 +56,8 @@ LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u,
ptrdiff_t oldtop, ptrdiff_t ef);
LUAI_FUNC void luaD_poscall (lua_State *L, CallInfo *ci, StkId firstResult,
int nres);
LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
LUAI_FUNC void luaD_growstack (lua_State *L, int n);
LUAI_FUNC int luaD_reallocstack (lua_State *L, int newsize, int safe);
LUAI_FUNC int luaD_growstack (lua_State *L, int n, int safe);
LUAI_FUNC void luaD_shrinkstack (lua_State *L);
LUAI_FUNC void luaD_inctop (lua_State *L);