!30 Tune QUtil::hex_encode

From: @lixiaoyong1 
Reviewed-by: @caodongxia 
Signed-off-by: @caodongxia

0001-Tune-QUtil-hex_encode.patch

@@ -0,0 +1,33 @@
+From ae800361fefb6d30d054f5d90af310c85765b044 Mon Sep 17 00:00:00 2001
+From: m-holger <m-holger@kubitscheck.org>
+Date: Thu, 22 Sep 2022 20:13:51 +0100
+Subject: [PATCH] Tune QUtil::hex_encode
+
+Reference: https://github.com/qpdf/qpdf/commit/ae800361fefb6d30d054f5d90af310c85765b044
+---
+ libqpdf/QUtil.cc | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/libqpdf/QUtil.cc b/libqpdf/QUtil.cc
+index 98a8f318..bcf4aa4e 100644
+--- a/libqpdf/QUtil.cc
++++ b/libqpdf/QUtil.cc
+@@ -769,10 +769,12 @@ QUtil::make_unique_cstr(std::string const& str)
+ std::string
+ QUtil::hex_encode(std::string const& input)
+ {
++    static auto constexpr hexchars = "0123456789abcdef";
+     std::string result;
+-    for (unsigned int i = 0; i < input.length(); ++i) {
+-        result += QUtil::int_to_string_base(
+-            QIntC::to_int(static_cast<unsigned char>(input.at(i))), 16, 2);
++    result.reserve(2 * input.length());
++    for (const char c: input) {
++        result += hexchars[static_cast<unsigned char>(c) >> 4];
++        result += hexchars[c & 0x0f];
+     }
+     return result;
+ }
+-- 
+2.39.3
+

qpdf.spec

@@ -1,11 +1,13 @@
 Name:           qpdf
 Version:        11.1.0
-Release:        2
+Release:        3
 Summary:        A command-line program to transform PDF files
 License:        (Artistic 2.0 or ASL 2.0) and MIT
 URL:            http://qpdf.sourceforge.net/
 Source0:        http://downloads.sourceforge.net/sourceforge/qpdf/qpdf-%{version}.tar.gz
 
+Patch0001:      0001-Tune-QUtil-hex_encode.patch
+
 BuildRequires:  gcc gcc-c++ zlib-devel libjpeg-turbo-devel pcre-devel
 BuildRequires:  perl-interpreter perl-generators perl(Digest::MD5)
 BuildRequires:  cmake gnutls-devel
@@ -37,7 +39,7 @@ Obsoletes:      %{name}-doc < %{version}-%{release}
 This package contains some man help and other files for %{name}.
 
 %prep
-%setup -q
+%autosetup -n %{name}-%{version} -p1
 
 %build
 export CFLAGS="${RPM_OPT_FLAGS}"
@@ -86,6 +88,9 @@ rm -rf %{buildroot}/usr/lib64/libqpdf.a
 %{_mandir}/man1/*
 
 %changelog
+* Fri May 10 2024 lixiaoyong <lixiaoyong@kylinos.cn> - 11.1.0-3
+- Tune QUtil::hex_encode
+
 * Mon Mar 06 2023 wangkai <wangkai385@h-partners.com> - 11.1.0-2
 - Add BIND_NOW,PIE,SP secure compilation options