Changeset 373 for trunk/lib

Timestamp:

Jun 19, 2007, 11:53:16 PM (16 years ago)

Author:

Peter Johansson

Message:

adding function transforming decimal int to hexadecimal refs #200

Location:

trunk/lib

Files:

• utility.cc (modified) (1 diff)
• utility.h (modified) (1 diff)

trunk/lib/utility.cc

@@ -79 +79 @@
 
 
+  std::string hex(int x, u_int width)
+  {
+    std::stringstream ss;
+    ss << std::hex << x;
+    if (!width)
+      return ss.str();
+    if (ss.str().size()<width) 
+      return std::string(width-ss.str().size(), '0') + ss.str();
+    return ss.str().substr(0, width);
+  }
+
+
   std::string htrim(std::string str)
   {

trunk/lib/utility.h

@@ -63 +63 @@
   ///
   std::string getenv(const std::string& var); 
+
+  ///
+  /// If @a width is set, size is forced to length @a width. This
+  /// implies, e.g., that hex(15,2) and hex(17,1) return "0F" and "1",
+  /// respectively.
+  ///
+  /// @return x in hexadecimal base
+  ///
+  std::string hex(int x, u_int width=0);
 
   ///