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Fix parseFloat input string length calculation (#3782)

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JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.usz@partner.samsung.com
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Péter Gál 2020-05-25 13:05:18 +02:00 committed by GitHub
parent b2a2022d0a
commit 6fe6dab9cc
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2 changed files with 16 additions and 1 deletions
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2
jerry-core/ecma/base/ecma-helpers-number.c
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@ -941,7 +941,7 @@ ecma_number_parse_float (const lit_utf8_byte_t *string_buff, /**< routine's firs
/* The input string should be at least the length of "Infinity" to be correctly processed as /* The input string should be at least the length of "Infinity" to be correctly processed as
* the infinity value. * the infinity value.
*/ */
if (string_buff_size >= infinity_length if ((str_end_p - str_curr_p) >= (int) infinity_length
&& memcmp (infinity_str_p, str_curr_p, infinity_length) == 0) && memcmp (infinity_str_p, str_curr_p, infinity_length) == 0)
{ {
/* String matched Infinity. */ /* String matched Infinity. */

15
tests/jerry/regression-test-issue-3778.js Normal file
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@ -0,0 +1,15 @@
// Copyright JS Foundation and other contributors, http://js.foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
assert (parseFloat (-0.00001) === -0.00001);