window_draw_list: Use c_char instead of i8
Target expects a c_char, which happens to be an i8 on x86, but it may be
something else on other platforms (e.g. u8 on ARM).
@@ -216,10 +216,12 @@ impl<'ui> WindowDrawList<'ui> {
C: Into<ImColor>,
T: AsRef<str>,
{
+ use std::os::raw::c_char;
+
let text = text.as_ref();
unsafe {
- let start = text.as_ptr() as *const i8;
- let end = (start as usize + text.len()) as *const i8;
+ let start = text.as_ptr() as *const c_char;
+ let end = (start as usize + text.len()) as *const c_char;
sys::ImDrawList_AddText(self.draw_list, pos.into(), col.into().into(), start, end)
}
}
