Record Case Detail

Notes

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

Stderr

=================================================================
==403==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000000070 at pc 0x55577f96ac1a bp 0x7ffd660f5830 sp 0x7ffd660f5820
WRITE of size 8 at 0x603000000070 thread T0
    #0 0x55577f96ac19 in Dlist<int>::insertBack(int*) (/out/package/dlist_mem+0x5c19)
    #1 0x55577f968486 in Dlist<int>::copyAll(Dlist<int> const&) [clone .isra.17] (/out/package/dlist_mem+0x3486)
    #2 0x55577f969ac6 in case5() (/out/package/dlist_mem+0x4ac6)
    #3 0x55577f967197 in main (/out/package/dlist_mem+0x2197)
    #4 0x7f9fa3f35b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #5 0x55577f967599 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 0x7f9fa49879c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
    #1 0x55577f969aa5 in case5() (/out/package/dlist_mem+0x4aa5)
    #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.