How to determine whether code is running in DEBUG RELEASE build

Question

I am making an app that processes sensitive credit card data   If my code is running in debug mode I want to log this data to the console and make some file dumps      However on the final appstore version  ie when it is running in release mode  it is essential all of this is disabled  security hazard    I will try to answer my question as best I can   so the question becomes  Is this solution path the right or best way to do it       add  IS DEBUG 1  to your debug build preprocessor settings     if  IS DEBUG      define MYLog args     NSLog args     else    define MYLog args        endif

User · Answer

Not sure if I answered you question  maybe you could try these code    ifdef DEBUG  define DLOG xx        NSLog           s  d           xx    PRETTY FUNCTION      LINE        VA ARGS              else  define DLOG xx          void 0   endif

User · Answer

For a solution in Swift please refer to this thread on SO   Basically the solution in Swift would look like this    if DEBUG     println  I m running in DEBUG mode    else     println  I m running in a non-DEBUG mode    endif   Additionally you will need to set the DEBUG symbol in Swift Compiler - Custom Flags section for the Other Swift Flags key via a -D DEBUG entry  See the following screenshot for an example

User · Answer

Check your project s build settings under  Apple LLVM - Preprocessing    Preprocessor Macros  for debug to ensure that DEBUG is being set - do this by selecting the project and clicking on the build settings tab  Search for DEBUG and look to see if indeed DEBUG is being set   Pay attention though   You may see DEBUG changed to another variable name such as DEBUG MODE     then conditionally code for DEBUG in your source files   ifdef DEBUG     Something to log your sensitive data here   else        endif

User · Answer

Swift and Xcode 10    if DEBUG will pass in ANY development ad-hoc build  device or simulator  It s only false for App Store and TestFlight builds   Example    if DEBUG    print  Not App Store build    else    print  App Store build    endif

User · Answer

Most answers said that  how to set  ifdef DEBUG  and none of them saying how to determinate debug release build   My opinion    Edit scheme -  run -   build configuration  choose debug   release   It can control the simulator and your test iPhone s code status  Edit scheme -  archive -   build configuration  choose debug   release   It can control the test package app and App Store app  s code status

User · Answer

Apple already includes a DEBUG flag in debug builds  so you don t need to define your own   You might also want to consider just redefining NSLog to a null operation when not in DEBUG mode  that way your code will be more portable and you can just use regular NSLog statements     put this in prefix pch   ifndef DEBUG  undef NSLog  define NSLog args        endif

User · Answer

In xcode 7  there is a field under Apple LLVM 7 0 - preprocessing  which called  Preprocessors Macros Not Used In Precompiled     I put DEBUG in front of Debug and it works for me by using below code    ifdef DEBUG     NSString  const kURL     http   debug com    else     NSString  const kURL     http   release com    endif

User · Answer

zitao xiong s answer is pretty close to what I use  I also include the file name  by stripping off the path of FILE     ifdef DEBUG      define NSLogDebug format             NSLog    lt  s  d gt   s    format        strrchr       FILE           1    LINE      PRETTY FUNCTION         VA ARGS     else      define NSLogDebug format        endif

User · Answer

Just one more idea to detect   DebugMode h   import  lt Foundation Foundation h gt    interface DebugMode  NSObject       BOOL  isDebug   end   DebugMode m   import  DebugMode h    implementation DebugMode   BOOL  isDebug    ifdef DEBUG     return true   else     return false   endif    end   add into header bridge file    include  DebugMode h   usage   DebugMode isDebug    It is not needed to write something inside project properties swift flags

[ios] How to determine whether code is running in DEBUG / RELEASE build?

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