Module fmt

Formatting-related items

Panic formatting for custom types can be done in these ways (in increasing order of verbosity):

• Using the PanicFmt derive macro (requires the opt-in "derive" feature)
• Using the impl_panicfmt macro (requires the default-enabled "non_basic" feature)
• Using the flatten_panicvals macro (requires the default-enabled "non_basic" feature)
• Manually implementing the PanicFmt trait as described in its docs.

Modules

• char_formatting
  char-formatted related items

Structs

• FmtArg
  Carries all of the configuration for formatting functions.
• IsCustomType
  Marker type used as the PanicFmt::Kind for user-defined types.
• IsPanicFmt
  A marker type that proves that S implements PanicFmt<This = T, Kind = K>.
• IsStdType
  Marker type used as the PanicFmt::Kind associated type for std types.

Enums

• FmtKind
  What kind of formatting to do, either Display or Debug.
• NumberFmt
  What integers are formatted as.

Traits

• PanicFmt
  Trait for types that can be formatted by const panics.