Avoid compiler warning:

larskanis · larskanis · commit 743d2712848c · 2025-02-13T10:16:26.000+01:00
warning: function might be candidate for attribute "noreturn" [-Wsuggest-attribute=noreturn]
diff --git a/ext/native/posix_serialport_impl.c b/ext/native/posix_serialport_impl.c
@@ -602,16 +602,14 @@ VALUE sp_get_read_timeout_impl(VALUE self)
    return INT2FIX(params.c_cc[VTIME] * 100);
 }
 
-VALUE sp_set_write_timeout_impl(VALUE self, VALUE val)
+NORETURN(VALUE sp_set_write_timeout_impl(VALUE self, VALUE val))
 {
    rb_notimplement();
-   return self;
 }
 
-VALUE sp_get_write_timeout_impl(VALUE self)
+NORETURN(VALUE sp_get_write_timeout_impl(VALUE self))
 {
    rb_notimplement();
-   return self;
 }
 
 VALUE sp_break_impl(VALUE self, VALUE time)

Original file line number	Diff line number	Diff line change
`@@ -602,16 +602,14 @@ VALUE sp_get_read_timeout_impl(VALUE self)`
`602`	`602`	`return INT2FIX(params.c_cc[VTIME] * 100);`
`603`	`603`	`}`
`604`	`604`
`605`		`-VALUE sp_set_write_timeout_impl(VALUE self, VALUE val)`
	`605`	`+NORETURN(VALUE sp_set_write_timeout_impl(VALUE self, VALUE val))`
`606`	`606`	`{`
`607`	`607`	`rb_notimplement();`
`608`		`- return self;`
`609`	`608`	`}`
`610`	`609`
`611`		`-VALUE sp_get_write_timeout_impl(VALUE self)`
	`610`	`+NORETURN(VALUE sp_get_write_timeout_impl(VALUE self))`
`612`	`611`	`{`
`613`	`612`	`rb_notimplement();`
`614`		`- return self;`
`615`	`613`	`}`
`616`	`614`
`617`	`615`	`VALUE sp_break_impl(VALUE self, VALUE time)`