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detail (ensure subtraction is done unsigned)

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This commit is contained in:
Roberto Ierusalimschy 2015-10-02 12:39:23 -03:00
parent 10fffcd80a
commit dc4232379d
1 changed files with 2 additions and 2 deletions
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4
lmathlib.c
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@ -1,5 +1,5 @@
/*
** $Id: lmathlib.c,v 1.115 2015/03/12 14:04:04 roberto Exp roberto $
** $Id: lmathlib.c,v 1.116 2015/06/26 19:30:32 roberto Exp $
** Standard mathematical library
** See Copyright Notice in lua.h
*/
@ -39,7 +39,7 @@
static int math_abs (lua_State *L) {
if (lua_isinteger(L, 1)) {
lua_Integer n = lua_tointeger(L, 1);
if (n < 0) n = (lua_Integer)(0u - n);
if (n < 0) n = (lua_Integer)(0u - (lua_Unsigned)n);
lua_pushinteger(L, n);
}
else