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authorOlivier Gayot <og@satcom1.com>2017-08-26 00:15:58 +0200
committerOlivier Gayot <og@satcom1.com>2017-11-19 14:00:12 +0100
commit671f3f8ca44382386daf63c70140742e61200c2e (patch)
tree4a99e06fc2ec3604db7348aab545fdb070866b8f /number.cpp
parent59962a745c0ca1e3237c8634005787eb1c8bbfde (diff)
Added a class "number" with comparison operators
Signed-off-by: Olivier Gayot <og@satcom1.com>
Diffstat (limited to 'number.cpp')
-rw-r--r--number.cpp58
1 files changed, 58 insertions, 0 deletions
diff --git a/number.cpp b/number.cpp
new file mode 100644
index 0000000..e942cf2
--- /dev/null
+++ b/number.cpp
@@ -0,0 +1,58 @@
+#include "number.h"
+
+/* Comparison operators {{{ */
+
+bool
+number::operator<(const number &n) const
+{
+ const auto size = this->_operands.size();
+
+ if (size < n._operands.size()) {
+ return true;
+ }
+
+ if (size > n._operands.size()) {
+ return false;
+ }
+
+ /* Because first item is the least significant. */
+ auto l1(this->_operands);
+ auto l2(n._operands);
+
+ l1.reverse();
+ l2.reverse();
+
+ return l1 < l2;
+}
+
+bool
+number::operator>(const number &n) const
+{
+ return n.operator<(*this);
+}
+
+bool
+number::operator<=(const number &n) const
+{
+ return operator<(n) || operator==(n);
+}
+
+bool
+number::operator>=(const number &n) const
+{
+ return operator>(n) || operator==(n);
+}
+
+bool
+number::operator==(const number &n) const
+{
+ return _operands == n._operands;
+}
+
+bool
+number::operator!=(const number &n) const
+{
+ return _operands != n._operands;
+}
+
+/* }}} */