microsoft / microsoft/vscode-cpptools
Not Recognizing Used Code as Used Code Or Not Debugging Unused Code
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@sean-mcmanus is already working on this.
Since Sep 15, 2025.
debugger
Feature: Configuration
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Description
Environment
- OS and Version: Windows 11 Pro 23H2
- VS Code Version: 1.104.0
- C/C++ Extension Version: 1.26.5
Bug Summary and Steps to Reproduce
Bug Summary:
Steps to reproduce:
1.
Create a class with this these preprocessor commands.
Create a definition with these preprocessor commands. The extension doesn't debug due to thinking falsely that the code is unused.
Expected behavior:
It should properly recognize that the code is used and debug it or at least debug it despite thinking it is unused.
Configuration and Logs
Config:
{
// Geral Config
"window.menuBarVisibility": "toggle",
// Workbench Config
// "workbench.iconTheme": "symbols",
// "window.zoomLevel": 1,
// "workbench.startupEditor": "newUntitledFile",
// "workbench.list.smoothScrolling": true,
// "workbench.activityBar.location": "hidden", // comment if you want to hide activity bar
// Symbol Config
"symbols.hidesExplorerArrows": false,
// Terminal Config
"breadcrumbs.enabled": false,
// Editor Config
"editor.inlineSuggest.enabled": true,
"editor.fontFamily": "JetBrains Mono",
"editor.lineHeight": 1.8,
"editor.fontWeight": "normal",
"editor.renderLineHighlight": "gutter",
"editor.fontLigatures": true,
"editor.semanticHighlighting.enabled": false,
"editor.minimap.autohide": "mouseover",
"editor.scrollbar.horizontal": "hidden",
"editor.scrollbar.vertical": "hidden",
// "editor.rulers": [80, 120], // uncomment if you want to add rulers in your editor
// Explore File Config
"explorer.compactFolders": false,
"explorer.fileNesting.enabled": true,
"explorer.fileNesting.patterns": {
"package.json": ".eslint*, .prettier*, tsconfig*, vite*, pnpm-lock*, bun.lockb, nest*, .yarn*, yarn.lock",
"tailwind.config.js": "tailwind.config*, postcss.config*",
"next.config.js": "next*",
".env.local": ".env*",
".env": ".env*"
},
"editor.fontSize": 15,
// APC Pluggin Config
// "apc.font.family": "JetBrains Mono", // uncomment if you want to use custom font
"apc.header": {
"height": 36,
},
"apc.listRow": {
"height": 24
},
"apc.stylesheet": {
".title-label > h2": "display: none",
".editor-actions": "display: none",
".pane-body": "padding: 5px"
},
// Terminal Config
"terminal.integrated.fontSize": 14,
"terminal.integrated.fontFamily": "JetBrainsMono Nerd Font",
"terminal.external.windowsExec": "wt",
"workbench.colorTheme": "JetBrains Darcula Theme",
"makefile.configureOnOpen": true,
"git.openRepositoryInParentFolders": "never",
"workbench.editor.empty.hint": "hidden",
//Greyed out code
//"C_Cpp.dimInactiveRegions": false
}
Build logs:
------------------------------------------------------------------------------
You may only use the C/C++ Extension for Visual Studio Code with Visual Studio
Code, Visual Studio or Visual Studio for Mac software to help you develop and
test your applications.
------------------------------------------------------------------------------
main.exe (15376): Loaded 'C:\Users\Isaac Krabbenhoft\recreate\main.exe'. Symbols loaded.
main.exe (15376): Loaded 'C:\Windows\System32\ntdll.dll'.
main.exe (15376): Loaded 'C:\Windows\System32\kernel32.dll'.
main.exe (15376): Loaded 'C:\Windows\System32\KernelBase.dll'.
main.exe (15376): Loaded 'C:\Windows\System32\kernel.appcore.dll'.
main.exe (15376): Loaded 'C:\Windows\System32\msvcrt.dll'.
The program '[15376] main.exe' has exited with code 0 (0x0).
C/C++ Diagnostics:
-------- Diagnostics - 9/13/2025, 11:05:16 AM
Version: 1.26.5
Current Configuration:
{
"name": "Win32",
"includePath": [
"c:/Users/Isaac Krabbenhoft/C315/lab06/**",
"c:/Users/Isaac Krabbenhoft/C315/lab06/../doctest/"
],
"defines": [
"_DEBUG",
"UNICODE",
"_UNICODE"
],
"windowsSdkVersion": "10.0.26100.0",
"compilerPath": "cl.exe",
"cStandard": "c17",
"cppStandard": "c++17",
"intelliSenseMode": "windows-msvc-x64",
"compilerPathIsExplicit": true,
"cStandardIsExplicit": true,
"cppStandardIsExplicit": true,
"intelliSenseModeIsExplicit": true,
"recursiveIncludesReduceIsExplicit": false,
"recursiveIncludesPriorityIsExplicit": false,
"recursiveIncludesOrderIsExplicit": false,
"compilerPathInCppPropertiesJson": "cl.exe",
"mergeConfigurations": false,
"recursiveIncludes": {},
"browse": {
"limitSymbolsToIncludedHeaders": true
}
}
Additional Tracked Settings:
{
"editorTabSize": 4,
"editorInsertSpaces": true,
"editorAutoClosingBrackets": "languageDefined",
"filesEncoding": "utf8",
"filesAssociations": {
"algorithm": "cpp",
"atomic": "cpp",
"bit": "cpp",
"cctype": "cpp",
"charconv": "cpp",
"clocale": "cpp",
"cmath": "cpp",
"compare": "cpp",
"concepts": "cpp",
"csignal": "cpp",
"cstddef": "cpp",
"cstdint": "cpp",
"cstdio": "cpp",
"cstdlib": "cpp",
"cstring": "cpp",
"ctime": "cpp",
"cwchar": "cpp",
"exception": "cpp",
"format": "cpp",
"fstream": "cpp",
"initializer_list": "cpp",
"iomanip": "cpp",
"ios": "cpp",
"iosfwd": "cpp",
"iostream": "cpp",
"istream": "cpp",
"iterator": "cpp",
"limits": "cpp",
"list": "cpp",
"locale": "cpp",
"map": "cpp",
"memory": "cpp",
"mutex": "cpp",
"new": "cpp",
"optional": "cpp",
"ostream": "cpp",
"random": "cpp",
"ratio": "cpp",
"set": "cpp",
"sstream": "cpp",
"stdexcept": "cpp",
"stop_token": "cpp",
"streambuf": "cpp",
"string": "cpp",
"system_error": "cpp",
"thread": "cpp",
"tuple": "cpp",
"type_traits": "cpp",
"typeinfo": "cpp",
"unordered_set": "cpp",
"utility": "cpp",
"vector": "cpp",
"xfacet": "cpp",
"xhash": "cpp",
"xiosbase": "cpp",
"xlocale": "cpp",
"xlocbuf": "cpp",
"xlocinfo": "cpp",
"xlocmes": "cpp",
"xlocmon": "cpp",
"xlocnum": "cpp",
"xloctime": "cpp",
"xmemory": "cpp",
"xstring": "cpp",
"xtr1common": "cpp",
"xtree": "cpp",
"xutility": "cpp"
},
"filesExclude": {
"**/.git": true,
"**/.svn": true,
"**/.hg": true,
"**/.DS_Store": true,
"**/Thumbs.db": true
},
"filesAutoSaveAfterDelay": false,
"editorInlayHintsEnabled": true,
"editorParameterHintsEnabled": true,
"searchExclude": {
"**/node_modules": true,
"**/bower_components": true,
"**/*.code-search": true
},
"workbenchSettingsEditor": "ui"
}
cpptools version (native): 1.26.4.0
Current database path: C:\USERS\ISAAC KRABBENHOFT\APPDATA\LOCAL\MICROSOFT\VSCODE-CPPTOOLS\94648832C3E68CE4EB4240514780D492\.BROWSE.VC.DB
Translation Unit Mappings:
[ C:\Users\Isaac Krabbenhoft\C315\lab06\src\Array.cpp - source TU]:
[ C:\Users\Isaac Krabbenhoft\C315\lab06\src\main.cpp - source TU]:
C:\Users\Isaac Krabbenhoft\C315\lab06\src\Array.hpp
C:\Users\Isaac Krabbenhoft\C315\lab06\src\static.hpp
[ C:\Users\Isaac Krabbenhoft\C315\lab06\test\constructor-test.cpp - source TU]:
Translation Unit Configurations:
[ C:\Users\Isaac Krabbenhoft\C315\lab06\src\Array.cpp ]
Process ID: 13696
Memory Usage: 59 MB
Compiler Path: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x64\cl.exe
Include paths:
include: C:\Users\Isaac Krabbenhoft\C315\doctest
include: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\include
include: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\atlmfc\include
include: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\VS\include
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\ucrt
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\um
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\shared
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\winrt
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\cppwinrt
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\um
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\ucrt
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\shared
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\winrt
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\cppwinrt
Defines:
_DEBUG
UNICODE
_UNICODE
Standard Version: ms_c++17
IntelliSense Mode: windows-msvc-x64
Other Flags:
--using_directory
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\ATLMFC\lib\x64
--using_directory
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\lib\x64
--using_directory
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\lib\x86\store\references
--using_directory
C:\Program Files (x86)\Windows Kits\10\UnionMetadata\10.0.26100.0
--using_directory
C:\Program Files (x86)\Windows Kits\10\References\10.0.26100.0
--using_directory
C:\Windows\Microsoft.NET\Framework64\v4.0.30319
[ C:\Users\Isaac Krabbenhoft\C315\lab06\src\main.cpp ]
Process ID: 12780
Memory Usage: 170 MB
Compiler Path: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x64\cl.exe
Include paths:
include: C:\Users\Isaac Krabbenhoft\C315\doctest
include: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\include
include: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\atlmfc\include
include: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\VS\include
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\ucrt
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\um
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\shared
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\winrt
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\cppwinrt
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\um
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\ucrt
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\shared
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\winrt
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\cppwinrt
Defines:
_DEBUG
UNICODE
_UNICODE
Standard Version: ms_c++17
IntelliSense Mode: windows-msvc-x64
Other Flags:
--using_directory
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\ATLMFC\lib\x64
--using_directory
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\lib\x64
--using_directory
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\lib\x86\store\references
--using_directory
C:\Program Files (x86)\Windows Kits\10\UnionMetadata\10.0.26100.0
--using_directory
C:\Program Files (x86)\Windows Kits\10\References\10.0.26100.0
--using_directory
C:\Windows\Microsoft.NET\Framework64\v4.0.30319
[ C:\Users\Isaac Krabbenhoft\C315\lab06\test\constructor-test.cpp ]
Process ID: 6084
Memory Usage: 274 MB
Compiler Path: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x64\cl.exe
Include paths:
include: C:\Users\Isaac Krabbenhoft\C315\doctest
include: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\include
include: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\atlmfc\include
include: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\VS\include
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\ucrt
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\um
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\shared
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\winrt
include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\cppwinrt
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\um
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\ucrt
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\shared
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\winrt
system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\cppwinrt
include (recursive): C:\Users\Isaac Krabbenhoft\C315\lab06\src
Defines:
_DEBUG
UNICODE
_UNICODE
Standard Version: ms_c++17
IntelliSense Mode: windows-msvc-x64
Other Flags:
--using_directory
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\ATLMFC\lib\x64
--using_directory
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\lib\x64
--using_directory
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\lib\x86\store\references
--using_directory
C:\Program Files (x86)\Windows Kits\10\UnionMetadata\10.0.26100.0
--using_directory
C:\Program Files (x86)\Windows Kits\10\References\10.0.26100.0
--using_directory
C:\Windows\Microsoft.NET\Framework64\v4.0.30319
Total Memory Usage: 504 MB
------- Workspace parsing diagnostics -------
Number of files discovered (not excluded): 5193
Other Extensions
No response
Additional context
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