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add explanation to why size can not be string_t::npos

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Qianqian Fang 2022-06-17 15:31:12 -04:00
parent 2885ea61c9
commit 0f8a59f791
2 changed files with 2 additions and 2 deletions
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2
include/nlohmann/detail/input/binary_reader.hpp
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@ -2179,7 +2179,7 @@ class binary_reader
for (auto i : dim)
{
result *= i;
if (result == 0 || result == string_t::npos) // because dim elements shall not have zeros, result = 0 means overflow happened; it also can't be string_t::npos
if (result == 0 || result == string_t::npos) // because dim elements shall not have zeros, result = 0 means overflow happened; it also can't be string_t::npos as it is used to initialize size in get_ubjson_size_type()
{
return sax->parse_error(chars_read, get_token_string(), out_of_range::create(408, exception_message(input_format, "excessive ndarray size caused overflow", "size"), nullptr));
}

2
single_include/nlohmann/json.hpp
View File

@ -10879,7 +10879,7 @@ class binary_reader
for (auto i : dim)
{
result *= i;
if (result == 0 || result == string_t::npos) // because dim elements shall not have zeros, result = 0 means overflow happened; it also can't be string_t::npos
if (result == 0 || result == string_t::npos) // because dim elements shall not have zeros, result = 0 means overflow happened; it also can't be string_t::npos as it is used to initialize size in get_ubjson_size_type()
{
return sax->parse_error(chars_read, get_token_string(), out_of_range::create(408, exception_message(input_format, "excessive ndarray size caused overflow", "size"), nullptr));
}