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This commit is contained in:
Roberto Ierusalimschy 2014-06-01 21:03:16 -03:00
parent 5ebdd326b6
commit 11aefa4478
1 changed files with 7 additions and 9 deletions
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16
luaconf.h
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@ -1,5 +1,5 @@
/* /*
** $Id: luaconf.h,v 1.204 2014/05/26 17:10:22 roberto Exp roberto $ ** $Id: luaconf.h,v 1.205 2014/05/27 13:59:03 roberto Exp roberto $
** Configuration file for Lua ** Configuration file for Lua
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -507,18 +507,16 @@
/* /*
@@ lua_numtointeger converts a float number to an integer, or @@ lua_numtointeger converts a float number to an integer, or
** return 0 if float is not within the range of a lua_Integer. ** returns 0 if float is not within the range of a lua_Integer.
** (The comparisons are tricky because of rounding. ** (The range comparisons are tricky because of rounding. The tests
** The tests here assume a two-complement representation, where ** here assume a two-complement representation, where MININTEGER always
** MININTEGER always has an exact representation as a float, ** has an exact representation as a float; MAXINTEGER may not have one,
** while LUA_MAXINTEGER may not have one, and therefore its ** and therefore its conversion to float may have an ill-defined value.)
** conversion to float may have an ill-defined value.)
** This macro should be used only when 'n' has an integral value.
*/ */
#define lua_numtointeger(n,p) \ #define lua_numtointeger(n,p) \
((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \ ((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \
(n) < -(LUA_NUMBER)(LUA_MININTEGER) && \ (n) < -(LUA_NUMBER)(LUA_MININTEGER) && \
(*p = (LUA_INTEGER)(n), 1)) (*(p) = (LUA_INTEGER)(n), 1))
/* /*