Notes
This function is in beta test. Please help improve it in the issues
here.
/in/DlistImpl.h:94:9: runtime error: member access within null pointer of type 'struct node'
ASAN:DEADLYSIGNAL
=================================================================
==26387==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x55b8f409f7bc bp 0x603000000040 sp 0x7ffc27d84580 T0)
==26387==The signal is caused by a WRITE memory access.
==26387==Hint: address points to the zero page.
#0 0x55b8f409f7bb in Dlist<double>::removeBack() (/out/package/dlist_mem+0x207bb)
#1 0x55b8f409a738 in case0() (/out/package/dlist_mem+0x1b738)
#2 0x55b8f40997b1 in main (/out/package/dlist_mem+0x1a7b1)
#3 0x7f105cc81b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#4 0x55b8f409a2d9 in _start (/out/package/dlist_mem+0x1b2d9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/dlist_mem+0x207bb) in Dlist<double>::removeBack()
==26387==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.