Notes
This function is in beta test. Please help improve it in the issues
here.
=================================================================
==492==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000000048 at pc 0x561750093303 bp 0x7ffe30fa2650 sp 0x7ffe30fa2640
READ of size 8 at 0x603000000048 thread T0
#0 0x561750093302 in Dlist<double>::removeBack() (/out/package/dlist_mem+0x5302)
#1 0x5617500907ed in case0() (/out/package/dlist_mem+0x27ed)
#2 0x561750090197 in main (/out/package/dlist_mem+0x2197)
#3 0x7fd3e27e7b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#4 0x561750090599 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 0x7fd3e32399c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
#1 0x5617500907c5 in case0() (/out/package/dlist_mem+0x27c5)
#2 0x561750096183 in _IO_stdin_used (/out/package/dlist_mem+0x8183)
previously allocated by thread T0 here:
#0 0x7fd
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.