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Improve float number handling and conversion (#4820)

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Fixes #4739.

JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu
This commit is contained in:
Dániel Bátyai
2021-12-03 12:58:37 +01:00
committed by GitHub
parent a1c1d42710
commit 81d2319144
30 changed files with 1022 additions and 1603 deletions
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jerry-core/ecma/operations/ecma-bigint.c
+10 -22
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@@ -17,6 +17,7 @@
#include "ecma-big-uint.h"
#include "ecma-exceptions.h"
#include "ecma-helpers-number.h"
#include "ecma-helpers.h"
#include "ecma-objects.h"
@@ -85,21 +86,10 @@ ecma_bigint_parse_string (const lit_utf8_byte_t *string_p, /**< string represena
if (size >= 3 && string_p[0] == LIT_CHAR_0)
{
if (string_p[1] == LIT_CHAR_LOWERCASE_X || string_p[1] == LIT_CHAR_UPPERCASE_X)
radix = lit_char_to_radix (string_p[1]);
if (radix != 10)
{
radix = 16;
string_p += 2;
size -= 2;
}
else if (string_p[1] == LIT_CHAR_LOWERCASE_O || string_p[1] == LIT_CHAR_UPPERCASE_O)
{
radix = 8;
string_p += 2;
size -= 2;
}
else if (string_p[1] == LIT_CHAR_LOWERCASE_B || string_p[1] == LIT_CHAR_UPPERCASE_B)
{
radix = 2;
string_p += 2;
size -= 2;
}
@@ -292,17 +282,15 @@ static uint32_t
ecma_bigint_number_to_digits (ecma_number_t number, /**< ecma number */
ecma_bigint_digit_t *digits_p) /**< [out] BigInt digits */
{
uint32_t biased_exp;
uint64_t fraction;
ecma_number_unpack (number, NULL, &biased_exp, &fraction);
if (biased_exp == 0 && fraction == 0)
if (ecma_number_is_zero (number))
{
/* Number is zero. */
return ECMA_BIGINT_NUMBER_TO_DIGITS_SET_DIGITS (0);
}
ecma_binary_num_t binary = ecma_number_to_binary (number);
uint32_t biased_exp = ecma_number_biased_exp (binary);
uint64_t fraction = ecma_number_fraction (binary);
if (biased_exp < ((1 << (ECMA_NUMBER_BIASED_EXP_WIDTH - 1)) - 1))
{
/* Number is less than 1. */
@@ -618,7 +606,7 @@ ecma_bigint_to_number (ecma_value_t value) /**< BigInt value */
if (biased_exp < (1u << ECMA_NUMBER_BIASED_EXP_WIDTH) - 1)
{
result = ecma_number_pack (sign, biased_exp, fraction);
result = ecma_number_create (sign, biased_exp, fraction);
}
else
{