Notes
This function is in beta test. Please help improve it in the issues
here.
=================================================================
==33176==ERROR: AddressSanitizer: heap-use-after-free on address 0x602000000010 at pc 0x556eeb129c3f bp 0x7ffe99411e20 sp 0x7ffe99411e10
READ of size 4 at 0x602000000010 thread T0
#0 0x556eeb129c3e in case3() (/out/package/dlist_mem+0x14c3e)
#1 0x556eeb128071 in main (/out/package/dlist_mem+0x13071)
#2 0x7f1e4a0b9b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#3 0x556eeb128619 in _start (/out/package/dlist_mem+0x13619)
0x602000000010 is located 0 bytes inside of 4-byte region [0x602000000010,0x602000000014)
freed by thread T0 here:
#0 0x7f1e4b82c9c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
#1 0x556eeb129a81 in case3() (/out/package/dlist_mem+0x14a81)
#2 0x60300000006f (<unknown module>)
previously allocated by thread T0 here:
#0 0x7f1e4b82b448 in operator new(unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe0448)
#1 0x556eeb12971
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.