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.