Record Case Detail

Notes

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

Stderr

=================================================================
==22906==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000000070 at pc 0x564d37fb097d bp 0x7ffed2aa6cc0 sp 0x7ffed2aa6cb0
WRITE of size 8 at 0x603000000070 thread T0
    #0 0x564d37fb097c in Dlist<int>::insertBack(int*) (/out/package/dlist_mem+0x597c)
    #1 0x564d37fb0cfa in Dlist<int>::copyAll(Dlist<int> const&) (/out/package/dlist_mem+0x5cfa)
    #2 0x564d37fb0e4c in Dlist<int>::operator=(Dlist<int> const&) (/out/package/dlist_mem+0x5e4c)
    #3 0x564d37faf6c7 in case5() (/out/package/dlist_mem+0x46c7)
    #4 0x564d37fad197 in main (/out/package/dlist_mem+0x2197)
    #5 0x7fef4f30fb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #6 0x564d37fad599 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 0x7fef4fd619c8 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.