Record Case Detail

Notes

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

Stderr

/in/DlistImpl.h:34:3: runtime error: member access within null pointer of type 'struct node'
ASAN:DEADLYSIGNAL
=================================================================
==18733==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x55571cc98298 bp 0x000000000000 sp 0x7ffe0ed3b750 T0)
==18733==The signal is caused by a WRITE memory access.
==18733==Hint: address points to the zero page.
    #0 0x55571cc98297 in Dlist<int>::insertBack(int*) [clone .part.4] (/out/package/dlist_mem+0x14297)
    #1 0x55571cc993d1 in case2() (/out/package/dlist_mem+0x153d1)
    #2 0x55571cc97531 in main (/out/package/dlist_mem+0x13531)
    #3 0x7f3e8d2cab96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #4 0x55571cc97ad9 in _start (/out/package/dlist_mem+0x13ad9)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/dlist_mem+0x14297) in Dlist<int>::insertBack(int*) [clone .part.4]
==18733==ABORTING

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.