How to conditionally compile code for different platforms in C ++ Builder?

Question

What are the conditional platform definitions for Android, iOS, Win32, Win64 in C ++ Builder? I found only examples for Delphi.

Answer 1

So-called manifest constants are described on this help page . The platforms I have listed here:

 ┌─────────────┬───────┬──────────────────────────────┐ │ Macro │ Value │ Description │ ├─────────────┼───────┼──────────────────────────────┤ │ _Windows │ 1 │ Windows platform │ ├─────────────┼───────┼──────────────────────────────┤ │ __WIN32__ │ 1 │ 32-bit Windows platform │ ├─────────────┼───────┼──────────────────────────────┤ │ _WIN64 │ 1 │ 64-bit Windows platform │ ├─────────────┼───────┼──────────────────────────────┤ │ __arm__ │ │ 32-bit ARM compiler │ ├─────────────┼───────┼──────────────────────────────┤ │ __arm64__ │ │ 64-bit ARM64 compiler │ ├─────────────┼───────┼──────────────────────────────┤ │ __APPLE__ │ │ Apple platform │ ├─────────────┼───────┼──────────────────────────────┤ │ __MACH__ │ │ MAC OSX platform │ ├─────────────┼───────┼──────────────────────────────┤ │ __ANDROID__ │ │ Android platform │ └─────────────┴───────┴──────────────────────────────┘ 

These macros are built-in compilers, therefore they do not contain a header file. Example:

 #if _Windows // Windows platform #elif __APPLE__ // Apple platform #elif __ANDROID__ // Android platform #else #error Not a supported platform #endif