Record Case Detail

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/in/DlistImpl.h:94:9: runtime error: member access within null pointer of type 'struct node'
ASAN:DEADLYSIGNAL
=================================================================
==26392==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x5571e3dcbecc bp 0x603000000010 sp 0x7ffde0d316f0 T0)
==26392==The signal is caused by a WRITE memory access.
==26392==Hint: address points to the zero page.
    #0 0x5571e3dcbecb in Dlist<int>::removeBack() (/out/package/sam_mem+0x15ecb)
    #1 0x5571e3dc6fa2 in main (/out/package/sam_mem+0x10fa2)
    #2 0x7f37b4b40b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x5571e3dc8c69 in _start (/out/package/sam_mem+0x12c69)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/sam_mem+0x15ecb) in Dlist<int>::removeBack()
==26392==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.

NOR
-7 
PUSHI 6 STORE NOOP PUSHI 12 LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 
7 2 5 9 7 4 4 5 8 7 9 2 9 2 6 4 
PUSHI 6
-7 6 
STORE NOOP PUSHI 12 LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 
7 2 5 9 7 4 4 5 8 7 9 2 9 2 6 4 
STORE

NOOP PUSHI 12 LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 
7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 
NOOP

PUSHI 12 LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 
7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 
PUSHI 12
12 
LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 
7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 
LOAD
9 
PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 
7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 
PUSHI 4
9 4 
STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 
7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 
STORE

PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI

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