Record Case Detail

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

1000 int
0 append gVP81eXNEL 232
/in/dlist.c:25:15: runtime error: member access within null pointer of type 'node_t' (aka 'struct node')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/dlist.c:25:15 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==227==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc 0x000000515898 bp 0x7ffc8c28f030 sp 0x7ffc8c28efe0 T0)
==227==The signal is caused by a READ memory access.
==227==Hint: address points to the zero page.
    #0 0x515897  (/out/package/main+0x515897)
    #1 0x515367  (/out/package/main+0x515367)
    #2 0x7f834221ab96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41cb09  (/out/package/main+0x41cb09)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/main+0x515897) 
==227==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
gVP81eXNEL=232
gVP81eXNEL=232
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
false
17
18
19
20
21
22
23
24
25
26
27
28
gVP81eXNEL=232
yudr9aAGFUNMV1E=-5940
7p3EBYAeujWtV=61030
yTXgk=-3638
y8vmiW1Tjn=-42211
FgVO27ToPd0=-55412
wbRB54IxYdESV=-8423
NCzy0WeiT8jZwH=21415
pTOEMG=-7280
MlwrfTFZ6AJViY=-61504
cRuOgwf7D=-4178
M4LUQJb5Zvl=8992
7gO4B2ZvmGa=-7843
Un2Ph=19777
WMdJDK1O=25408
SBym0zI84V2=42569
Slsc9HqCPGDWiy=-57459
670p4qZnQA9bvhw=-18691
jAKngvR6CkTsNHt=25920
5YCiP=-53358
39vGocEj8we4Z=18322
rjKAbqOi8hVozU=37617
pQ8mwRL6yM=40245
agXy73ZPf=-60786
TWYs0pQC9gAV=-11655
xQB1tNZkugwWCm=-40093
7p3EBYAeujWtV=61030
SBym0zI84V2=42569
pQ8mwRL6yM=40245
rjKAbqOi8hVozU=37617
jAKngvR6CkTsNHt=25920
WMdJDK1O=25408
NCzy0WeiT8jZwH=21415
Un2Ph=19777
39vGocEj8we4Z=18322
M4LUQJb5Zvl=8992
gVP81eXNEL=232
yTXgk=-3638
cRuOgwf7D=-4178
yudr9aAGFUNMV1E=-5940
pTOEMG=-7280
7gO4B2ZvmGa=-7843
wbRB54IxYdESV=-8423
TWYs0pQC9gAV=-11655
670p4qZnQA9bvhw=-18691
xQB1tNZkugwWCm=-40093
y8vmiW1Tjn=-42211
5YCiP=-53358
FgVO27ToPd0=-55412
Slsc9HqCPGDWiy=-57459

Notes

Stderr

Hints

Your Answer

JOJ Answer