Record Case Detail

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

10 int
0 append vP3cQpMzLCmd -35084
1 empty
2 append hLQj5n68HzIy 49453
/in/dlist.c:261:14: runtime error: member access within null pointer of type 'node_t' (aka 'struct linked_node')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/dlist.c:261:14 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==265==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc 0x0000005169d2 bp 0x7ffcf2bec6d0 sp 0x7ffcf2bec680 T0)
==265==The signal is caused by a WRITE memory access.
==265==Hint: address points to the zero page.
    #0 0x5169d1  (/out/package/main+0x5169d1)
    #1 0x515327  (/out/package/main+0x515327)
    #2 0x7fe2bb135b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41cac9  (/out/package/main+0x41cac9)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/main+0x5169d1) 
==265==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
false
2
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4
5
6
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8
9
vP3cQpMzLCmd=-35084
hLQj5n68HzIy=49453
kEey1tihW5RKzV=45500
NBqFejKT=-42778
hWQ8lF=56352
6czWb9qQeVB=-28268
9E3Goachd8JA=64267
Vd53hgpyIqxv=54270

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JOJ Answer