Changeset 14219

Timestamp:

06/22/12 22:54:26 (13 years ago)

Author:

tbretz

Message:

Added conversion of a value to a scientific notation.

Location:

trunk/FACT++/src

Files:

• tools.cc (modified) (2 diffs)
• tools.h (modified) (1 diff)

trunk/FACT++/src/tools.cc

@@ -11 +11 @@
 
 #include <stdarg.h>
+#include <iomanip>
+#include <sstream>
 
 #include <boost/tokenizer.hpp>
@@ -143 +145 @@
 }
 
+string Tools::Scientific(uint64_t val)
+{
+    ostringstream rc;
+    rc << setprecision(1) << fixed;
+
+    if (val<1000)
+    {
+        rc << val << " ";
+        return rc.str();
+    }
+
+    if (val<3000)
+    {
+        rc << val/1000. << " k";
+        return rc.str();
+    }
+
+    if (val<1000000)
+    {
+        rc << val/1000 << " k";
+        return rc.str();
+    }
+
+    if (val<3000000)
+    {
+        rc << val/1000000. << " M";
+        return rc.str();
+    }
+
+    if (val<1000000000)
+    {
+        rc << val/1000000 << " M";
+        return rc.str();
+    }
+
+    if (val<3000000000)
+    {
+        rc << val/1000000000. << " G";
+        return rc.str();
+    }
+
+    if (val<1000000000000)
+    {
+        rc << val/1000000000 << " G";
+        return rc.str();
+    }
+
+    if (val<3000000000000)
+    {
+        rc << val/1000000000000. << " T";
+        return rc.str();
+    }
+
+    if (val<1000000000000000)
+    {
+        rc << val/1000000000000 << " T";
+        return rc.str();
+    }
+
+    if (val<3000000000000000)
+    {
+        rc << val/1000000000000000. << " P";
+        return rc.str();
+    }
+
+    rc << val/1000000000000000. << " P";
+    return rc.str();
+}
+
 // --------------------------------------------------------------------------
 //

trunk/FACT++/src/tools.h

@@ -12 +12 @@
     std::string TrimQuotes(const std::string &str);
     std::string Wrap(std::string &str, size_t width=78);
+    std::string Scientific(uint64_t val);
 
     std::map<std::string,std::string> Split(std::string &, bool = false);