Switch performance critical code to use APT::StringView

This improves performance of the cache generation on my
ARM platform (4x Cortex A15) by about 10% to 20% from
2.35-2.50 to 2.1 seconds.

1 files changed, 6 insertions, 1 deletions

diff --git a/apt-pkg/contrib/strutl.h b/apt-pkg/contrib/strutl.h
index a8bbc38af..c5c8e2382 100644
--- a/apt-pkg/contrib/strutl.h
+++ b/apt-pkg/contrib/strutl.h
@@ -22,6 +22,9 @@
 #include <cstring>
 #include <vector>
 #include <iostream>
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+#include <apt-pkg/string_view.h>
+#endif
 #include <time.h>
 #include <stddef.h>
 
@@ -75,7 +78,9 @@ bool StrToNum(const char *Str,unsigned long long &Res,unsigned Len,unsigned Base
 bool Base256ToNum(const char *Str,unsigned long &Res,unsigned int Len);
 bool Base256ToNum(const char *Str,unsigned long long &Res,unsigned int Len);
 bool Hex2Num(const std::string &Str,unsigned char *Num,unsigned int Length);
-
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+APT_HIDDEN bool Hex2Num(const APT::StringView Str,unsigned char *Num,unsigned int Length);
+#endif
 // input changing string split
 bool TokSplitString(char Tok,char *Input,char **List,
 		    unsigned long ListMax);