Notes
This function is in beta test. Please help improve it in the issues
here.
=================================================================
==860==ERROR: AddressSanitizer: stack-buffer-underflow on address 0x7ffefe2ae580 at pc 0x559b375a5777 bp 0x7ffefe2ae420 sp 0x7ffefe2ae410
READ of size 8 at 0x7ffefe2ae580 thread T0
#0 0x559b375a5776 in Dlist<int>::removeAll() [clone .isra.12] (/out/package/dlist_mem+0x2776)
#1 0x559b375a881e in Dlist<int>::Dlist(Dlist<int> const&) (/out/package/dlist_mem+0x581e)
#2 0x559b375a6c32 in case4() (/out/package/dlist_mem+0x3c32)
#3 0x559b375a5197 in main (/out/package/dlist_mem+0x2197)
#4 0x7fb4073d4b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#5 0x559b375a5599 in _start (/out/package/dlist_mem+0x2599)
Address 0x7ffefe2ae580 is located in stack of thread T0 at offset 0 in frame
#0 0x559b375a507f in main (/out/package/dlist_mem+0x207f)
This frame has 2 object(s):
[32, 36) 'testnum'
[96, 100) '<unknown>'
HINT: this may be a false positive if your program uses some custom stack unwind mechanis
Hints
Your answer may be identical to the JOJ answer in the first several lines.
However, the main problem you meet now is Runtime Error. And the exit code of your program is 1, which should be 0.
Please double check your code to solve this problem and try again.
Your Answer
JOJ Answer
Test success.