https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90225
Bug ID: 90225
Summary: Resource leak..
Product: gcc
Version: 6.4.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: venkateshprabu at gmail dot com
Target Milestone: ---
File:
Resource leak
The system resource will not be reclaimed and reused, reducing the future
availability of the resource.
In std::unordered_map<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char>>,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char>>, std::hash<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char>>>,
std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char>>>,
std::allocator<std::pair<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char>> const,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char>>>>>::operator
=(std::unordered_map<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char>>,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char>>, std::hash<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char>>>,
std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char>>>,
std::allocator<std::pair<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char>> const,
std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char>>>>> const &): Leak of memory or pointers to system
resources (CWE-404)
Is this false positive by coverity?
Coverity report:
unordered_map(initializer_list<value_type> __l,
255 size_type __n, const hasher& __hf,
256 const allocator_type& __a)
257 : unordered_map(__l, __n, __hf, key_equal(), __a)
258 { }
259
260 /// Copy assignment operator.
261 unordered_map&
1. alloc_arg: operator = allocates memory that is stored into
this->_M_h._M_buckets. [show details]
CID 8650859 (#1 of 1): Resource leak (RESOURCE_LEAK)
2. overwrite_var: Overwriting this->_M_h._M_buckets in call to operator = leaks
the storage that this->_M_h._M_buckets points to. [show details]
262 operator=(const unordered_map&) = default;
263
264 /// Move assignment operator.
265 unordered_map&
266 operator=(unordered_map&&) = default;
267
268 /**
269 * @brief %Unordered_map list assignment operator.
270 * @param __l An initializer_list.
271 *
272 * This function fills an %unordered_map with copies of the elements
in
273 * the initializer list @a __l.
274 *
