Is there a list of all cfg functions?

Question

Rust has the ability to verify the configuration during assembly using, for example, #[cfg(target_os = "linux")]or if cfg!(target_os = "linux") {...}, where is a target_osfunction.

Is there a list of all (or at least commonly used) functions that can be tested in Rust?

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See related question on attributes. Is there an exhaustive list of standard attributes anywhere? .

Answer 1

In the "Conditional Compilation" section of the link there is a list of configurations that must be defined (starting with Rust 1.14):

• target_arch with values:
  • x86
  • x86_64
  • mips
  • powerpc
  • powerpc64
  • arm
  • aarch64
• target_os with values ​​such as:
  • windows
  • macos
  • ios
  • linux
  • android
  • freebsd
  • dragonfly
  • bitrig
  • openbsd
  • netbsd
• target_family with values ​​such as:
  • unix
  • windows
• unix(shortcut to target_family)
• windows(shortcut to target_family)
• target_env with values ​​such as:
  • gnu
  • msvc
  • musl
  • "" ( )
• target_endian :
  • little
  • big
• target_pointer_width , :
  • 32
  • 64
• target_has_atomic :
  • 8
  • 16
  • 32
  • 64
  • ptr
• target_vendor , :
  • apple
  • pc
  • unknown
• test
• debug_assertions

Answer 2

. https://internals.rust-lang.org/t/all-the-rust-features/4322 .

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