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in 'luaL_checkversion_' check numeric types first. (Other tests 

depend on correct numeric type.)
This commit is contained in:
Roberto Ierusalimschy 2014-07-19 11:37:09 -03:00
parent 325e44d87e
commit 8704fca0c9
1 changed files with 3 additions and 4 deletions
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7
lauxlib.c
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@ -1,5 +1,5 @@
/* /*
** $Id: lauxlib.c,v 1.265 2014/07/16 14:51:36 roberto Exp roberto $ ** $Id: lauxlib.c,v 1.266 2014/07/17 12:30:53 roberto Exp roberto $
** Auxiliary functions for building Lua libraries ** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -952,13 +952,12 @@ LUALIB_API lua_State *luaL_newstate (void) {
LUALIB_API void luaL_checkversion_ (lua_State *L, lua_Number ver, size_t sz) { LUALIB_API void luaL_checkversion_ (lua_State *L, lua_Number ver, size_t sz) {
const lua_Number *v = lua_version(L); const lua_Number *v = lua_version(L);
if (sz != LUAL_NUMSIZES) /* check numeric types */
luaL_error(L, "core and library have incompatible numeric types");
if (v != lua_version(NULL)) if (v != lua_version(NULL))
luaL_error(L, "multiple Lua VMs detected"); luaL_error(L, "multiple Lua VMs detected");
else if (*v != ver) else if (*v != ver)
luaL_error(L, "version mismatch: app. needs %f, Lua core provides %f", luaL_error(L, "version mismatch: app. needs %f, Lua core provides %f",
ver, *v); ver, *v);
/* check numeric types */
if (sz != LUAL_NUMSIZES)
luaL_error(L, "core and library have incompatible numeric types");
} }