add into() from parse error to error

Author: gkorland

src/redismodule.rs

@@ -1,6 +1,7 @@
 use std::ffi::CString;
 use std::slice;
 use std::str;
+use core::num::ParseFloatError;
 
 pub type RedisResult = Result<RedisValue, RedisError>;
 
@@ -19,6 +20,12 @@ impl From<&'static str> for RedisError {
     }
 }
 
+impl From<ParseFloatError> for RedisError {
+    fn from(e: ParseFloatError) -> Self {
+        RedisError::String(e.to_string())
+    }
+}
+
 #[derive(Debug, PartialEq)]
 pub enum RedisValue {
     SimpleStringStatic(&'static str),