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FFI: Don't assert on #1LL (5.2 compatibility mode only).

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Reported by Denis Golovan.
This commit is contained in:
Mike Pall 2018-01-29 12:47:08 +01:00
parent c88602f080
commit b03a56f28e
3 changed files with 11 additions and 1 deletions
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2
src/lib_ffi.c
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@ -193,7 +193,7 @@ LJLIB_CF(ffi_meta___eq) LJLIB_REC(cdata_arith MM_eq)
LJLIB_CF(ffi_meta___len) LJLIB_REC(cdata_arith MM_len)
{
return ffi_arith(L);
return lj_carith_len(L);
}
LJLIB_CF(ffi_meta___lt) LJLIB_REC(cdata_arith MM_lt)

9
src/lj_carith.c
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@ -272,6 +272,15 @@ int lj_carith_op(lua_State *L, MMS mm)
return lj_carith_meta(L, cts, &ca, mm);
}
/* No built-in functionality for length of cdata. */
int lj_carith_len(lua_State *L)
{
CTState *cts = ctype_cts(L);
CDArith ca;
carith_checkarg(L, cts, &ca);
return lj_carith_meta(L, cts, &ca, MM_len);
}
/* -- 64 bit integer arithmetic helpers ----------------------------------- */
#if LJ_32 && LJ_HASJIT

1
src/lj_carith.h
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@ -11,6 +11,7 @@
#if LJ_HASFFI
LJ_FUNC int lj_carith_op(lua_State *L, MMS mm);
LJ_FUNC int lj_carith_len(lua_State *L);
#if LJ_32 && LJ_HASJIT
LJ_FUNC int64_t lj_carith_mul64(int64_t x, int64_t k);