Firwin macro

sci-rs/src/error/mod.rs

@@ -0,0 +1,27 @@
+use core::{error, fmt};
+
+/// Errors raised whilst running sci-rs.
+#[derive(Debug, PartialEq, Eq)]
+#[cfg(feature = "alloc")]
+pub enum Error {
+    /// Argument parsed into function were invalid.
+    InvalidArg {
+        /// The invalid arg
+        arg: alloc::string::String,
+        /// Explaining why arg is invalid.
+        reason: alloc::string::String,
+    },
+    /// Two or more optional arguments passed into functions conflict.
+    ConflictArg {
+        /// Explaining what arg is invalid.
+        reason: alloc::string::String,
+    },
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        todo!()
+    }
+}
+
+impl error::Error for Error {}

sci-rs/src/lib.rs

@@ -41,3 +41,6 @@ pub mod special;
 /// Debug plotting
 #[cfg(feature = "plot")]
 pub mod plot;
+
+/// Errors
+pub mod error;