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Define LUA_MAXUNSIGNED as a preprocessor constant

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The previous definition of LUA_MAXUNSIGNED used a typecast,
making it unsuitable for constant expressions in the preprocessor.
This commit is contained in:
Roberto Ierusalimschy
2019-05-14 11:10:24 -03:00
parent 0b63d79b36
commit 347d6961ac
2 changed files with 10 additions and 3 deletions
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4
lmathlib.c
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@@ -276,7 +276,7 @@ static int math_type (lua_State *L) {
/* there is a 'long long' type (which must have at least 64 bits) */
#define Rand64 unsigned long long
#elif (LUA_MAXINTEGER >> 30 >> 30) >= 7
#elif (LUA_MAXUNSIGNED >> 31 >> 31) >= 3
/* 'lua_Integer' has at least 64 bits */
#define Rand64 lua_Unsigned
@@ -538,7 +538,7 @@ static lua_Unsigned project (lua_Unsigned ran, lua_Unsigned n,
lim |= (lim >> 4);
lim |= (lim >> 8);
lim |= (lim >> 16);
#if (LUA_MAXINTEGER >> 30) >= 3
#if (LUA_MAXUNSIGNED >> 31) >= 3
lim |= (lim >> 32); /* integer type has more than 32 bits */
#endif
}