From 4f14fd55f5afabdc59442f39e15d64c840f97ae8 Mon Sep 17 00:00:00 2001
From: Stephen Chung <schungx@live.com>
Date: Fri, 14 May 2021 19:21:28 +0800
Subject: [PATCH] Small code refinements.

---
 src/ast.rs                 | 12 ++++++++----
 src/packages/math_basic.rs |  2 +-
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/ast.rs b/src/ast.rs
index 060875ca..ca0a0c83 100644
--- a/src/ast.rs
+++ b/src/ast.rs
@@ -2120,10 +2120,14 @@ mod tests {
         assert_eq!(size_of::<Option<ast::Expr>>(), 16);
         assert_eq!(size_of::<ast::Stmt>(), 32);
         assert_eq!(size_of::<Option<ast::Stmt>>(), 32);
-        #[cfg(not(feature = "no_smartstring"))]
-        assert_eq!(size_of::<FnPtr>(), 96);
-        #[cfg(feature = "no_smartstring")]
-        assert_eq!(size_of::<FnPtr>(), 80);
+        assert_eq!(
+            size_of::<FnPtr>(),
+            if cfg!(feature = "no_smartstring") {
+                80
+            } else {
+                96
+            }
+        );
         assert_eq!(size_of::<Scope>(), 288);
         assert_eq!(size_of::<LexError>(), 56);
         assert_eq!(
diff --git a/src/packages/math_basic.rs b/src/packages/math_basic.rs
index 9301ea46..e4d8b0b4 100644
--- a/src/packages/math_basic.rs
+++ b/src/packages/math_basic.rs
@@ -321,7 +321,7 @@ mod decimal_functions {
     #[rhai_fn(return_raw)]
     pub fn exp(x: Decimal) -> Result<Decimal, Box<EvalAltResult>> {
         if cfg!(not(feature = "unchecked")) {
-            if x > Decimal::from_parts(10, 0, 0, false, 0) {
+            if x > Decimal::from_parts(117578, 0, 0, false, 4) {
                 Err(make_err(format!("Exponential overflow: e ** {}", x,)))
             } else {
                 Ok(x.exp())