Added functions to print a number as hex or dec string

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

2 files changed, 58 insertions, 0 deletions

diff --git a/number.cpp b/number.cpp
index f6f445c..26b0ed2 100644
--- a/number.cpp
+++ b/number.cpp
@@ -1,5 +1,53 @@
+#include <iomanip>
+#include <sstream>
 #include "number.h"
 
+/* Type Conversion {{{ */
+
+std::string
+number::to_hex_string() const
+{
+    if (_operands.empty()) {
+        return std::string("0x0");
+    }
+
+    std::ostringstream ss;
+
+    ss << "0x" << std::hex;
+
+    for (auto it = _operands.crbegin(); it != _operands.crend(); ++it) {
+        ss << *it;
+
+        /* If more operands are present, successive ones must be padded. */
+        ss << std::setfill('0');
+        ss << std::setw(16);
+    }
+
+    return ss.str();
+}
+
+std::string
+number::to_dec_string() const
+{
+    if (_operands.empty()) {
+        return std::string("0");
+    }
+
+    std::ostringstream ss;
+
+    ss << std::dec;
+
+    if (_operands.size() == 1) {
+        ss << _operands.front();
+    } else {
+        /* TODO */
+        ss << "[Not implemented]";
+    }
+
+    return ss.str();
+}
+
+/* }}} */
 /* Operations {{{ */
 
 number
diff --git a/number.h b/number.h
index ca5075e..e7eebb5 100644
--- a/number.h
+++ b/number.h
@@ -9,6 +9,16 @@ public:
     number() = default;
 
     /**
+     * \brief Return a hexadecimal string representation of this number.
+     */
+    std::string to_hex_string() const;
+
+    /**
+     * \brief Return a decimal string representation of this number.
+     */
+    std::string to_dec_string() const;
+
+    /**
      * \brief Return the result of the addition of a number and this number.
      *
      * \param n The number to add to this number.