Notes
This function is in beta test. Please help improve it in the issues
here.
=================================================================
==10775==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000000048 at pc 0x55af8585a339 bp 0x7ffcd4c152d0 sp 0x7ffcd4c152c0
READ of size 8 at 0x603000000048 thread T0
#0 0x55af8585a338 in Dlist<double>::removeBack() (/out/package/dlist_mem+0x5338)
#1 0x55af858577ed in case0() (/out/package/dlist_mem+0x27ed)
#2 0x55af85857197 in main (/out/package/dlist_mem+0x2197)
#3 0x7fbd9983bb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#4 0x55af85857599 in _start (/out/package/dlist_mem+0x2599)
0x603000000048 is located 8 bytes inside of 24-byte region [0x603000000040,0x603000000058)
freed by thread T0 here:
#0 0x7fbd9a28d9c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
#1 0x55af858577c5 in case0() (/out/package/dlist_mem+0x27c5)
#2 0x55af8585d283 in _IO_stdin_used (/out/package/dlist_mem+0x8283)
previously allocated by thread T0 here:
#0 0x7
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.