rustc_
builtin_
macros
1.90.0
(1159e78c4 2025-09-14)
In rustc_
builtin_
macros::
format_
foreign::
shell
rustc_builtin_macros
::
format_foreign
::
shell
Function
is_ident_head
Copy item path
Source
fn is_ident_head(c:
char
) ->
bool