Include <algorithm> for std::min, std::max

ChangeLog

@@ -1,3 +1,8 @@
+2013-11-29  Jay Berkenbilt  <ejb@ql.org>
+
+	* Add missing #include <algorithm> in some files that use std::min
+	and std::max.
+
 2013-11-21  Jay Berkenbilt  <ejb@ql.org>
 
 	* Change image comparison tests, which are disabled by default, to

libqpdf/BufferInputSource.cc

@@ -1,6 +1,7 @@
 #include <qpdf/BufferInputSource.hh>
 #include <string.h>
 #include <stdexcept>
+#include <algorithm>
 
 BufferInputSource::BufferInputSource(std::string const& description,
                                      Buffer* buf, bool own_memory) :

libqpdf/FileInputSource.cc

@@ -2,6 +2,7 @@
 #include <string.h>
 #include <qpdf/QUtil.hh>
 #include <qpdf/QPDFExc.hh>
+#include <algorithm>
 
 FileInputSource::FileInputSource() :
     close_file(false),

libqpdf/QPDF.cc

@@ -3,6 +3,7 @@
 
 #include <vector>
 #include <map>
+#include <algorithm>
 #include <string.h>
 #include <memory.h>
 

libqpdf/QPDFWriter.cc

@@ -19,6 +19,7 @@
 #include <qpdf/QPDF_Name.hh>
 #include <qpdf/QPDF_String.hh>
 
+#include <algorithm>
 #include <stdlib.h>
 
 QPDFWriter::QPDFWriter(QPDF& pdf) :

libqpdf/QPDF_encryption.cc

@@ -14,6 +14,7 @@
 #include <qpdf/RC4.hh>
 #include <qpdf/MD5.hh>
 
+#include <algorithm>
 #include <assert.h>
 #include <string.h>
 

qpdf/test_driver.cc

@@ -11,6 +11,7 @@
 #include <qpdf/QPDFWriter.hh>
 #include <iostream>
 #include <sstream>
+#include <algorithm>
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>