No leak report on this usage: static int &a = *(new int);

[lijh8]

int main() {
  // static 
  int &a = *(new int);
  // delete &a;
}

Hi, if i add the static keyword for the declaration

  static int &a = *(new int);

it will not report memory leak.

Is this usage c++ standard conformant behavior?

Thanks

$ gcc --version
gcc (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
$

$ make
g++ -fsanitize=address -std=c++23 -g  -MMD -MP   -c -o main.o main.cpp
g++  -fsanitize=address   main.o   -o main
$

$ src/main/main

==2864==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 1 byte(s) in 1 object(s) allocated from:
    #0 0x7f25158f84b8 in operator new(unsigned long) (/lib64/libasan.so.8+0xf84b8) (BuildId: a4ad7eb954b390cf00f07fa10952988a41d9fc7a)
    #1 0x40117f in Foo::fun() /home/ljh/Documents/hello_cpp/src/main/main.cpp:6
    #2 0x401152 in main /home/ljh/Documents/hello_cpp/src/main/main.cpp:12
    #3 0x7f2515239087 in __libc_start_call_main (/lib64/libc.so.6+0x2a087) (BuildId: 77c77fee058b19c6f001cf2cb0371ce3b8341211)
    #4 0x7f251523914a in __libc_start_main_alias_1 (/lib64/libc.so.6+0x2a14a) (BuildId: 77c77fee058b19c6f001cf2cb0371ce3b8341211)
    #5 0x401084 in _start (/home/ljh/Documents/hello_cpp/src/main/main+0x401084) (BuildId: cddb8fb48744ed0ccb7673c7537b966fe25c3d5c)

SUMMARY: AddressSanitizer: 1 byte(s) leaked in 1 allocation(s).
$ 

[ramosian-glider]

By default, LSan treats allocations reachable from global memory as live and does not report them: https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizerDesignDocument

To disable this behavior, run with LSAN_OPTIONS=use_globals=0. Note that in this case LSan may report additional leaks from libc.

Note that because of #1838 this option is not shown if you run with ASAN_OPTIONS=help=1