cppcheck complains about some possible speed improvements which could be

done on the mirco-optimazation level, so lets fix them:
 (performance) Possible inefficient checking for emptiness.
 (performance) Prefer prefix ++/-- operators for non-primitive types.

1 files changed, 15 insertions, 15 deletions

diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index ab2da2d9a..867bb313b 100644
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -271,7 +271,7 @@ bool ParseCWord(const char *&String,string &Res)
 string QuoteString(const string &Str, const char *Bad)
 {
    string Res;
-   for (string::const_iterator I = Str.begin(); I != Str.end(); I++)
+   for (string::const_iterator I = Str.begin(); I != Str.end(); ++I)
    {
       if (strchr(Bad,*I) != 0 || isprint(*I) == 0 || 
 	  *I == 0x25 || // percent '%' char
@@ -298,7 +298,7 @@ string DeQuoteString(string::const_iterator const &begin,
 			string::const_iterator const &end)
 {
    string Res;
-   for (string::const_iterator I = begin; I != end; I++)
+   for (string::const_iterator I = begin; I != end; ++I)
    {
       if (*I == '%' && I + 2 < end &&
 	  isxdigit(I[1]) && isxdigit(I[2]))
@@ -632,7 +632,7 @@ string LookupTag(const string &Message,const char *Tag,const char *Default)
 {
    // Look for a matching tag.
    int Length = strlen(Tag);
-   for (string::const_iterator I = Message.begin(); I + Length < Message.end(); I++)
+   for (string::const_iterator I = Message.begin(); I + Length < Message.end(); ++I)
    {
       // Found the tag
       if (I[Length] == ':' && stringcasecmp(I,I+Length,Tag) == 0)
@@ -640,14 +640,14 @@ string LookupTag(const string &Message,const char *Tag,const char *Default)
 	 // Find the end of line and strip the leading/trailing spaces
 	 string::const_iterator J;
 	 I += Length + 1;
-	 for (; isspace(*I) != 0 && I < Message.end(); I++);
-	 for (J = I; *J != '\n' && J < Message.end(); J++);
-	 for (; J > I && isspace(J[-1]) != 0; J--);
+	 for (; isspace(*I) != 0 && I < Message.end(); ++I);
+	 for (J = I; *J != '\n' && J < Message.end(); ++J);
+	 for (; J > I && isspace(J[-1]) != 0; --J);
 	 
 	 return string(I,J);
       }
       
-      for (; *I != '\n' && I < Message.end(); I++);
+      for (; *I != '\n' && I < Message.end(); ++I);
    }   
    
    // Failed to find a match
@@ -1224,7 +1224,7 @@ int tolower_ascii(int const c)
 bool CheckDomainList(const string &Host,const string &List)
 {
    string::const_iterator Start = List.begin();
-   for (string::const_iterator Cur = List.begin(); Cur <= List.end(); Cur++)
+   for (string::const_iterator Cur = List.begin(); Cur <= List.end(); ++Cur)
    {
       if (Cur < List.end() && *Cur != ',')
 	 continue;
@@ -1248,7 +1248,7 @@ string DeEscapeString(const string &input)
    char tmp[3];
    string::const_iterator it, escape_start;
    string output, octal, hex;
-   for (it = input.begin(); it != input.end(); it++) 
+   for (it = input.begin(); it != input.end(); ++it)
    {
       // just copy non-escape chars
       if (*it != '\\')
@@ -1264,7 +1264,7 @@ string DeEscapeString(const string &input)
          // copy
          output += *it;
          // advance iterator one step further
-         it += 1;
+         ++it;
          continue;
       }
         
@@ -1273,7 +1273,7 @@ string DeEscapeString(const string &input)
          continue;
 
       // read it
-      it++;
+      ++it;
       switch (*it)
       {
          case '0':
@@ -1310,7 +1310,7 @@ void URI::CopyFrom(const string &U)
    string::const_iterator I = U.begin();
 
    // Locate the first colon, this separates the scheme
-   for (; I < U.end() && *I != ':' ; I++);
+   for (; I < U.end() && *I != ':' ; ++I);
    string::const_iterator FirstColon = I;
 
    /* Determine if this is a host type URI with a leading double //
@@ -1322,7 +1322,7 @@ void URI::CopyFrom(const string &U)
    /* Find the / indicating the end of the hostname, ignoring /'s in the
       square brackets */
    bool InBracket = false;
-   for (; SingleSlash < U.end() && (*SingleSlash != '/' || InBracket == true); SingleSlash++)
+   for (; SingleSlash < U.end() && (*SingleSlash != '/' || InBracket == true); ++SingleSlash)
    {
       if (*SingleSlash == '[')
 	 InBracket = true;
@@ -1355,11 +1355,11 @@ void URI::CopyFrom(const string &U)
    I = FirstColon + 1;
    if (I > SingleSlash)
       I = SingleSlash;
-   for (; I < SingleSlash && *I != ':'; I++);
+   for (; I < SingleSlash && *I != ':'; ++I);
    string::const_iterator SecondColon = I;
    
    // Search for the @ after the colon
-   for (; I < SingleSlash && *I != '@'; I++);
+   for (; I < SingleSlash && *I != '@'; ++I);
    string::const_iterator At = I;
    
    // Now write the host and user/pass