Function Perl_infix_plugin_standard 

pub unsafe fn Perl_infix_plugin_standard(
    my_perl: *mut PerlInterpreter,
    operator_ptr: *mut c_char,
    operator_len: STRLEN,
    def: *mut *mut Perl_custom_infix,
) -> STRLEN

thx shim for crate::Perl_infix_plugin_standard.