Record Case Detail

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5 int
0 append 4AP0LIhQU 143
/in/dlist.c:125:14: runtime error: member access within null pointer of type 'node_t' (aka 'struct _node_')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/dlist.c:125:14 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==112==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc 0x000000516b1f bp 0x7ffead7630f0 sp 0x7ffead763000 T0)
==112==The signal is caused by a WRITE memory access.
==112==Hint: address points to the zero page.
    #0 0x516b1e  (/out/package/main+0x516b1e)
    #1 0x519965  (/out/package/main+0x519965)
    #2 0x5152d7  (/out/package/main+0x5152d7)
    #3 0x7f0ab6b96b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #4 0x41ca79  (/out/package/main+0x41ca79)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/main+0x516b1e) 
==112==ABORTING

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.

0
1
2
4AP0LIhQU=143
oBUmdxEaIHuyL8=48582
3
4
4AP0LIhQU=143
oBUmdxEaIHuyL8=48582
MiXRrfQ0KLG=-26856

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