minor refactoring

1 files changed, 18 insertions, 23 deletions

diff --git a/src/base64.cc b/src/base64.cc
index 5b182b2..1cbac91 100644
--- a/src/base64.cc
+++ b/src/base64.cc
@@ -1,22 +1,23 @@
-/**  --------------------------------------------------------------------
+/**
  *  @file base64.cc
  *  @brief Implementation of base64 Utilities
  *  @author Andreas Aardal Hanssen
  *  @date 2002-2005
- *  -----------------------------------------------------------------  **/
+ */
+
 #include "base64.h"
 
 #include <iostream>
 #include <string>
 
-using namespace ::std;
+using std::string;
 
-typedef unsigned char bbyte; /* Byte type */
+typedef unsigned char bbyte;  // Byte type
 
 #define TRUE  1
 #define FALSE 0
 
-#define LINELEN 72 /* Encoded line length (max 76) */
+#define LINELEN 72  // Encoded line length (max 76)
 
 static bbyte dtable[256];
 
@@ -25,15 +26,14 @@ string Binc::base64encode(const string &s_in)
   int i;
   string result;
 
-  /*  Fill dtable with character encodings.  */
+  // Fill dtable with character encodings.
 
   for (i = 0; i < 26; i++) {
     dtable[i] = 'A' + i;
     dtable[26 + i] = 'a' + i;
   }
-  for (i = 0; i < 10; i++) {
+  for (i = 0; i < 10; i++)
     dtable[52 + i] = '0' + i;
-  }
   dtable[62] = '+';
   dtable[63] = '/';
 
@@ -45,23 +45,22 @@ string Binc::base64encode(const string &s_in)
     igroup[0] = igroup[1] = igroup[2] = 0;
     for (n = 0; n < 3 && s_i != s_in.end(); n++) {
       c = *s_i++;
-      igroup[n] = (bbyte)c;
+      igroup[n] = static_cast<bbyte>(c);
     }
+
     if (n > 0) {
       ogroup[0] = dtable[igroup[0] >> 2];
       ogroup[1] = dtable[((igroup[0] & 3) << 4) | (igroup[1] >> 4)];
       ogroup[2] = dtable[((igroup[1] & 0xF) << 2) | (igroup[2] >> 6)];
       ogroup[3] = dtable[igroup[2] & 0x3F];
 
-      /* Replace characters in output stream with "=" pad
-      characters if fewer than three characters were
-      read from the end of the input stream. */
+      // Replace characters in output stream with "=" pad
+      // characters if fewer than three characters were
+      // read from the end of the input stream.
 
       if (n < 3) {
         ogroup[3] = '=';
-        if (n < 2) {
-          ogroup[2] = '=';
-        }
+        if (n < 2) ogroup[2] = '=';
       }
 
       for (i = 0; i < 4; i++)
@@ -77,18 +76,14 @@ string Binc::base64decode(const string &s_in)
   string result;
   int i;
 
-  for (i = 0; i < 255; i++) {
+  for (i = 0; i < 255; i++)
     dtable[i] = 0x80;
-  }
-  for (i = 'A'; i <= 'Z'; i++) {
+  for (i = 'A'; i <= 'Z'; i++)
     dtable[i] = 0 + (i - 'A');
-  }
-  for (i = 'a'; i <= 'z'; i++) {
+  for (i = 'a'; i <= 'z'; i++)
     dtable[i] = 26 + (i - 'a');
-  }
-  for (i = '0'; i <= '9'; i++) {
+  for (i = '0'; i <= '9'; i++)
     dtable[i] = 52 + (i - '0');
-  }
   dtable[(int)'+'] = 62;
   dtable[(int)'/'] = 63;
   dtable[(int)'='] = 0;