diff options
Diffstat (limited to 'erts/emulator/beam/big.c')
| -rw-r--r-- | erts/emulator/beam/big.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c index 70ef50f9a2..8439a8c08f 100644 --- a/erts/emulator/beam/big.c +++ b/erts/emulator/beam/big.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2021. All Rights Reserved. + * Copyright Ericsson AB 1996-2022. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -608,7 +608,7 @@ static dsize_t Z_sub(ErtsDigit* y, dsize_t yl, ErtsDigit* r) /* ** Multiply digits in x with digits in y and store in r -** Assumption: digits in r must be 0 (upto the size of x) +** Assumption: digits in r must be 0 (up to the size of x) */ static dsize_t I_mul(ErtsDigit* x, dsize_t xl, ErtsDigit* y, dsize_t yl, ErtsDigit* r) { @@ -984,7 +984,7 @@ static ErtsDigit D_rem(ErtsDigit* x, dsize_t xl, ErtsDigit d) /* ** Remainder of x and y ** -** Assumtions: xl >= yl, yl > 1 +** Assumptions: xl >= yl, yl > 1 ** r must contain at least xl number of digits */ static dsize_t I_rem(ErtsDigit* x, dsize_t xl, ErtsDigit* y, dsize_t yl, ErtsDigit* r) @@ -1483,6 +1483,18 @@ erts_make_integer(Uint x, Process *p) return uint_to_big(x,hp); } } + +Eterm +erts_make_integer_fact(Uint x, ErtsHeapFactory *hf) +{ + Eterm* hp; + if (IS_USMALL(0,x)) + return make_small(x); + else { + hp = erts_produce_heap(hf, BIG_UINT_HEAP_SIZE, 0); + return uint_to_big(x, hp); + } +} /* * As erts_make_integer, but from a whole UWord. */ @@ -2618,7 +2630,7 @@ int term_equals_2pow32(Eterm x) if (!is_big(x)) return 0; bp = big_val(x); -#if D_EXP == 16 /* 16 bit platfrom not really supported!!! */ +#if D_EXP == 16 /* 16 bit platform not really supported!!! */ return (BIG_SIZE(bp) == 3) && !BIG_DIGIT(bp,0) && !BIG_DIGIT(bp,1) && BIG_DIGIT(bp,2) == 1; #elif D_EXP == 32 @@ -2996,6 +3008,11 @@ LTI_result_t erts_list_to_integer(Process *BIF_P, Eterm orig_list, m = (lg2+D_EXP-1)/D_EXP; /* number of digits */ m = BIG_NEED_SIZE(m); /* number of words + thing */ + if (m > BIG_ARITY_MAX) { + error_res = LTI_SYSTEM_LIMIT; + goto error; + } + hp = HAlloc(BIF_P, m); hp_end = hp + m; |