Record Case Detail

Notes

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

Stderr

=================================================================
==495==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000000070 at pc 0x556dda822c1a bp 0x7ffe6e8a6810 sp 0x7ffe6e8a6800
WRITE of size 8 at 0x603000000070 thread T0
    #0 0x556dda822c19 in Dlist<int>::insertBack(int*) (/out/package/dlist_mem+0x5c19)
    #1 0x556dda820486 in Dlist<int>::copyAll(Dlist<int> const&) [clone .isra.17] (/out/package/dlist_mem+0x3486)
    #2 0x556dda822296 in case6() (/out/package/dlist_mem+0x5296)
    #3 0x556dda81f197 in main (/out/package/dlist_mem+0x2197)
    #4 0x7f9a76d6fb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #5 0x556dda81f599 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 0x7f9a777c19c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
    #1 0x556dda822275 in case6() (/out/package/dlist_mem+0x5275)
    #2 0x6

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.