Improved to_uint32

Instead of doing two comparisons (one with UINT32_MAX and one with 0),
we count the number of operands in the number to determine if it would
fit in a 32-bits-wide integer.

Signed-off-by: Olivier Gayot <og@satcom1.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/number.cpp b/number.cpp
index d39ed36..074c4dc 100644
--- a/number.cpp
+++ b/number.cpp
@@ -63,11 +63,13 @@ number::to_dec_string() const
 std::uint32_t
 number::to_uint32() const
 {
-    if (*this > UINT32_MAX) {
+    auto size = _operands.size();
+
+    if (size > 1) {
         throw std::out_of_range("> UINT32_MAX");
     }
 
-    return (*this == 0) ? 0 : _operands.front();
+    return (size == 0) ? 0 : _operands.front();
 }
 
 std::uint64_t