Notes
This function is in beta test. Please help improve it in the issues
here.
=================================================================
==21362==ERROR: AddressSanitizer: heap-use-after-free on address 0x602000000070 at pc 0x563f5de18b3b bp 0x7fffae90cc10 sp 0x7fffae90cc00
READ of size 4 at 0x602000000070 thread T0
#0 0x563f5de18b3a in case4() (/out/package/dlist_mem+0x15b3a)
#1 0x563f5de16761 in main (/out/package/dlist_mem+0x13761)
#2 0x7f2407157b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#3 0x563f5de16d09 in _start (/out/package/dlist_mem+0x13d09)
0x602000000070 is located 0 bytes inside of 4-byte region [0x602000000070,0x602000000074)
freed by thread T0 here:
#0 0x7f24088ca9c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
#1 0x563f5de1c200 in Dlist<int>::copyAll(Dlist<int> const&) (/out/package/dlist_mem+0x19200)
previously allocated by thread T0 here:
#0 0x7f24088c9448 in operator new(unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe0448)
#1 0x563f5de1c131 in Dlist<
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.