refactor(examples): use #![feature(generic_arg_infer)]

Author: yvt

examples/basic_wio_terminal/src/main.rs

@@ -1,4 +1,5 @@
 #![feature(const_refs_to_cell)]
+#![feature(generic_arg_infer)]
 #![feature(const_trait_impl)]
 #![feature(naked_functions)]
 #![feature(const_mut_refs)]
@@ -558,7 +559,7 @@ const USB_BUF_CAP: usize = 64;
 /// The queue through which received data is passed from `poll_usb` to
 /// `usb_in_task_body`
 static USB_BUF_IN: PrimaskMutex<RefCell<([u8; USB_BUF_CAP], usize)>> =
-    PrimaskMutex::new(RefCell::new(([0; USB_BUF_CAP], 0)));
+    PrimaskMutex::new(RefCell::new(([0; _], 0)));
 
 /// USB interrupt handler
 fn poll_usb() {
@@ -705,7 +706,7 @@ mod queue {
             Self {
                 st: StaticMutex::define()
                     .init(|| QueueSt {
-                        buf: [T::INIT; CAP],
+                        buf: [T::INIT; _],
                         read_i: 0,
                         len: 0,
                         waiting_reader: None,

examples/smp_rp_pico/src/core1.rs

@@ -100,11 +100,11 @@ static CORE1_VECTOR_TABLE: VectorTable<[unsafe extern "C" fn(); 48]> = {
         fn _core1_stack_start();
     }
 
-    let mut table = [unhandled as _; 48];
+    let mut table = [unhandled as _; _];
 
     let mut i = 0;
     let kernel_handler_table = <SystemTraits as r3_kernel::KernelCfg2>::INTERRUPT_HANDLERS;
-    while i < 48 {
+    while i < table.len() {
         if let Some(handler) = kernel_handler_table.get(i) {
             table[i] = handler;
         }

examples/smp_rp_pico/src/main.rs

@@ -1,4 +1,5 @@
 #![feature(const_refs_to_cell)]
+#![feature(generic_arg_infer)]
 #![feature(const_trait_impl)]
 #![feature(naked_functions)]
 #![feature(const_mut_refs)]