Record Case Detail

Notes

This function is in beta test. Please help improve it in the issues here.

Stderr

=================================================================
==22896==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000000070 at pc 0x55ebac69a97d bp 0x7fff5234cd60 sp 0x7fff5234cd50
WRITE of size 8 at 0x603000000070 thread T0
    #0 0x55ebac69a97c in Dlist<int>::insertBack(int*) (/out/package/dlist_mem+0x597c)
    #1 0x55ebac69acfa in Dlist<int>::copyAll(Dlist<int> const&) (/out/package/dlist_mem+0x5cfa)
    #2 0x55ebac69ae4c in Dlist<int>::operator=(Dlist<int> const&) (/out/package/dlist_mem+0x5e4c)
    #3 0x55ebac699e37 in case6() (/out/package/dlist_mem+0x4e37)
    #4 0x55ebac697197 in main (/out/package/dlist_mem+0x2197)
    #5 0x7f313bf99b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #6 0x55ebac697599 in _start (/out/package/dlist_mem+0x2599)

0x603000000070 is located 0 bytes inside of 24-byte region [0x603000000070,0x603000000088)
freed by thread T0 here:
    #0 0x7f313c9eb9c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0

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.