Windbg j command ; C++ expression evaluation

gistfile1.txt

Microsoft (R) Windows Debugger Version 10.0.16299.15 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.

CommandLine: C:\temp\testConsole\ConsoleApplication1\Release\ConsoleApplication1.exe world

************* Path validation summary **************
Response                         Time (ms)     Location
Deferred                                       srv*g:\Symbols*https://msdl.microsoft.com/download/symbols
Symbol search path is: srv*g:\Symbols*https://msdl.microsoft.com/download/symbols
Executable search path is: 
ModLoad: 00000000`00d50000 00000000`00d58000   ConsoleApplication1.exe
ModLoad: 00007fff`75830000 00007fff`75a11000   ntdll.dll
ModLoad: 00000000`77a80000 00000000`77c10000   ntdll.dll
ModLoad: 00000000`77a10000 00000000`77a62000   C:\WINDOWS\System32\wow64.dll
ModLoad: 00000000`77990000 00000000`77a08000   C:\WINDOWS\System32\wow64win.dll
(64ec.fbc): Break instruction exception - code 80000003 (first chance)
ntdll!LdrpDoDebuggerBreak+0x30:
00007fff`758fce5c cc              int     3
0:000> .reload /f
Reloading current modules
.*** WARNING: Unable to verify checksum for ConsoleApplication1.exe
....
0:000> bp ConsoleApplication1!SayHello
0:000> bl
     0 e Disable Clear  x86 00000000`00d51420     0001 (0001)  0:**** ConsoleApplication1!SayHello
0:000> g
ModLoad: 00000000`00620000 00000000`006d2000   WOW64_IMAGE_SECTION
ModLoad: 00000000`74890000 00000000`74970000   WOW64_IMAGE_SECTION
ModLoad: 00000000`00620000 00000000`007b0000   WOW64_IMAGE_SECTION
ModLoad: 00000000`77a70000 00000000`77a7a000   C:\WINDOWS\System32\wow64cpu.dll
ModLoad: 00000000`74890000 00000000`74970000   C:\WINDOWS\SysWOW64\KERNEL32.DLL
ModLoad: 00000000`74620000 00000000`74804000   C:\WINDOWS\SysWOW64\KERNELBASE.dll
ModLoad: 00000000`76a30000 00000000`76b4e000   C:\WINDOWS\SysWOW64\ucrtbase.dll
ModLoad: 00000000`5bbb0000 00000000`5bbc4000   C:\WINDOWS\SysWOW64\VCRUNTIME140.dll
(64ec.fbc): WOW64 breakpoint - code 4000001f (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
ntdll_77a80000!LdrpDoDebuggerBreak+0x2b:
77b28079 cc              int     3
0:000:x86> g
Breakpoint 0 hit
ConsoleApplication1!SayHello:
00d51420 55              push    ebp
0:000:x86> t
ConsoleApplication1!SayHello+0x2b:
00d5144b 51              push    ecx
0:000:x86> r
eax=004ffb48 ebx=003a5000 ecx=00637efc edx=11f73043 esi=76b3f0b0 edi=00637ea8
eip=00d5144b esp=004ffb20 ebp=004ffb54 iopl=0         nv up ei ng nz na po nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00000282
ConsoleApplication1!SayHello+0x2b:
00d5144b 51              push    ecx
0:000:x86> j (@@c++(@eip==0x00d5144b || @eip==0)) '.echo 5';'.echo 6'
5
0:000:x86> .expr /s c++
Current expression evaluator: C++ - C++ source expressions
0:000:x86> j (@eip==0x00d5144b || @eip==0) '.echo 5';'.echo 6'
5