clang-tidy: for loop conversion

Found with modernize-loop-convert

Signed-off-by: Rosen Penev <rosenp@gmail.com>

samples/exifdata-test.cpp

@@ -98,13 +98,11 @@ void print(const std::string& file) {
   auto image = Exiv2::ImageFactory::open(file);
   image->readMetadata();
 
-  Exiv2::ExifData& ed = image->exifData();
+  for (const auto& i : image->exifData()) {
-  auto end = ed.end();
+    std::cout << std::setw(45) << std::setfill(' ') << std::left << i.key() << " "
-  for (auto i = ed.begin(); i != end; ++i) {
+              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i.tag() << " " << std::setw(12)
-    std::cout << std::setw(45) << std::setfill(' ') << std::left << i->key() << " "
+              << std::setfill(' ') << std::left << i.ifdName() << " " << std::setw(9) << std::setfill(' ') << std::left
-              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i->tag() << " " << std::setw(12)
+              << i.typeName() << " " << std::dec << std::setw(3) << std::setfill(' ') << std::right << i.count() << " "
-              << std::setfill(' ') << std::left << i->ifdName() << " " << std::setw(9) << std::setfill(' ') << std::left
+              << std::dec << i.toString() << "\n";
-              << i->typeName() << " " << std::dec << std::setw(3) << std::setfill(' ') << std::right << i->count()
-              << " " << std::dec << i->toString() << "\n";
   }
 }

samples/exifdata.cpp

@@ -7,7 +7,6 @@
 #include <string>
 
 using format_t = std::map<std::string, int>;
-using format_i = format_t::const_iterator;
 enum format_e { wolf, csv, json, xml };
 
 void syntax(const char* argv[], format_t& formats) {

samples/exifprint.cpp

@@ -77,25 +77,24 @@ int main(int argc, char* const argv[]) {
     shortLong.insert("Exif.Photo.StripOffsets");
     shortLong.insert("Exif.Photo.StripByteCounts");
 
-    auto end = exifData.end();
+    for (const auto& i : exifData) {
-    for (auto i = exifData.begin(); i != end; ++i) {
       if (!bLint) {
-        const char* tn = i->typeName();
+        const char* tn = i.typeName();
-        std::cout << std::setw(44) << std::setfill(' ') << std::left << i->key() << " "
+        std::cout << std::setw(44) << std::setfill(' ') << std::left << i.key() << " "
-                  << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i->tag() << " "
+                  << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i.tag() << " "
                   << std::setw(9) << std::setfill(' ') << std::left << (tn ? tn : "Unknown") << " " << std::dec
-                  << std::setw(3) << std::setfill(' ') << std::right << i->count() << "  " << std::dec << i->toString()
+                  << std::setw(3) << std::setfill(' ') << std::right << i.count() << "  " << std::dec << i.toString()
                   << "\n";
       } else {
-        const Exiv2::TagInfo* tagInfo = findTag(Exiv2::ExifTags::tagList(i->groupName()), i->tag());
+        const Exiv2::TagInfo* tagInfo = findTag(Exiv2::ExifTags::tagList(i.groupName()), i.tag());
         if (tagInfo) {
-          Exiv2::TypeId type = i->typeId();
+          Exiv2::TypeId type = i.typeId();
           if (type != tagInfo->typeId_ &&
               (tagInfo->typeId_ != Exiv2::comment || type != Exiv2::undefined)  // comment is stored as undefined
-              && (shortLong.find(i->key()) == shortLong.end() ||
+              && (shortLong.find(i.key()) == shortLong.end() ||
                   (type != Exiv2::unsignedShort && type != Exiv2::unsignedLong))  // can be short or long!
           ) {
-            std::cerr << i->key() << " type " << i->typeName() << " (" << type << ")"
+            std::cerr << i.key() << " type " << i.typeName() << " (" << type << ")"
                       << " expected " << Exiv2::TypeInfo::typeName(tagInfo->typeId_) << " (" << tagInfo->typeId_ << ")"
                       << '\n';
             rc = 2;

samples/iptcprint.cpp

@@ -24,12 +24,11 @@ int main(int argc, char* const argv[]) try {
     throw Exiv2::Error(Exiv2::ErrorCode::kerErrorMessage, error);
   }
 
-  auto end = iptcData.end();
+  for (const auto& md : iptcData) {
-  for (auto md = iptcData.begin(); md != end; ++md) {
+    std::cout << std::setw(44) << std::setfill(' ') << std::left << md.key() << " "
-    std::cout << std::setw(44) << std::setfill(' ') << std::left << md->key() << " "
+              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << md.tag() << " " << std::setw(9)
-              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << md->tag() << " " << std::setw(9)
+              << std::setfill(' ') << std::left << md.typeName() << " " << std::dec << std::setw(3) << std::setfill(' ')
-              << std::setfill(' ') << std::left << md->typeName() << " " << std::dec << std::setw(3)
+              << std::right << md.count() << "  " << std::dec << md.value() << '\n';
-              << std::setfill(' ') << std::right << md->count() << "  " << std::dec << md->value() << '\n';
   }
 
   return EXIT_SUCCESS;

samples/prevtest.cpp

@@ -19,8 +19,7 @@ int main(int argc, char* const argv[]) try {
   image->readMetadata();
 
   Exiv2::PreviewManager loader(*image);
-  Exiv2::PreviewPropertiesList list = loader.getPreviewProperties();
+  for (const auto& pos : loader.getPreviewProperties()) {
-  for (auto&& pos : list) {
     std::cout << pos.mimeType_ << " preview, type " << pos.id_ << ", " << pos.size_ << " bytes, " << pos.width_ << 'x'
               << pos.height_ << " pixels"
               << "\n";

samples/remotetest.cpp

@@ -56,14 +56,12 @@ int main(int argc, char* const argv[]) {
       error += ": No Exif data found in the file";
       throw Exiv2::Error(Exiv2::ErrorCode::kerErrorMessage, error);
     }
-    auto end = exifReadData.end();
+    for (const auto& i : exifReadData) {
-    for (auto i = exifReadData.begin(); i != end; ++i) {
+      const char* tn = i.typeName();
-      const char* tn = i->typeName();
+      std::cout << std::setw(44) << std::setfill(' ') << std::left << i.key() << " "
-      std::cout << std::setw(44) << std::setfill(' ') << std::left << i->key() << " "
+                << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i.tag() << " " << std::setw(9)
-                << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i->tag() << " "
+                << std::setfill(' ') << std::left << (tn ? tn : "Unknown") << " " << std::dec << std::setw(3)
-                << std::setw(9) << std::setfill(' ') << std::left << (tn ? tn : "Unknown") << " " << std::dec
+                << std::setfill(' ') << std::right << i.count() << "  " << std::dec << i.value() << "\n";
-                << std::setw(3) << std::setfill(' ') << std::right << i->count() << "  " << std::dec << i->value()
-                << "\n";
     }
 
     // del, reset the metadata

samples/tiff-test.cpp

@@ -87,11 +87,10 @@ void print(const ExifData& exifData) {
     std::string error("No Exif data found in the file");
     throw Exiv2::Error(ErrorCode::kerErrorMessage, error);
   }
-  auto end = exifData.end();
+  for (const auto& i : exifData) {
-  for (auto i = exifData.begin(); i != end; ++i) {
+    std::cout << std::setw(44) << std::setfill(' ') << std::left << i.key() << " "
-    std::cout << std::setw(44) << std::setfill(' ') << std::left << i->key() << " "
+              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i.tag() << " " << std::setw(9)
-              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i->tag() << " " << std::setw(9)
+              << std::setfill(' ') << std::left << i.typeName() << " " << std::dec << std::setw(3) << std::setfill(' ')
-              << std::setfill(' ') << std::left << i->typeName() << " " << std::dec << std::setw(3) << std::setfill(' ')
+              << std::right << i.count() << "  " << std::dec << i.value() << "\n";
-              << std::right << i->count() << "  " << std::dec << i->value() << "\n";
   }
 }

samples/write-test.cpp

@@ -153,11 +153,10 @@ void testCase(const std::string& file1, const std::string& file2, const std::str
 // *****************************************************************************
 
 void exifPrint(const ExifData& exifData) {
-  auto i = exifData.begin();
+  for (const auto& i : exifData) {
-  for (; i != exifData.end(); ++i) {
+    std::cout << std::setw(44) << std::setfill(' ') << std::left << i.key() << " "
-    std::cout << std::setw(44) << std::setfill(' ') << std::left << i->key() << " "
+              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i.tag() << " " << std::setw(9)
-              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i->tag() << " " << std::setw(9)
+              << std::setfill(' ') << std::left << i.typeName() << " " << std::dec << std::setw(3) << std::setfill(' ')
-              << std::setfill(' ') << std::left << i->typeName() << " " << std::dec << std::setw(3) << std::setfill(' ')
+              << std::right << i.count() << "  " << std::dec << i.value() << "\n";
-              << std::right << i->count() << "  " << std::dec << i->value() << "\n";
   }
 }

samples/write2-test.cpp

@@ -201,13 +201,11 @@ void print(const std::string& file) {
   auto image = Exiv2::ImageFactory::open(file);
   image->readMetadata();
 
-  Exiv2::ExifData& ed = image->exifData();
+  for (const auto& i : image->exifData()) {
-  auto end = ed.end();
+    std::cout << std::setw(45) << std::setfill(' ') << std::left << i.key() << " "
-  for (auto i = ed.begin(); i != end; ++i) {
+              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i.tag() << " " << std::setw(12)
-    std::cout << std::setw(45) << std::setfill(' ') << std::left << i->key() << " "
+              << std::setfill(' ') << std::left << i.ifdName() << " " << std::setw(9) << std::setfill(' ') << std::left
-              << "0x" << std::setw(4) << std::setfill('0') << std::right << std::hex << i->tag() << " " << std::setw(12)
+              << i.typeName() << " " << std::dec << std::setw(3) << std::setfill(' ') << std::right << i.count() << " "
-              << std::setfill(' ') << std::left << i->ifdName() << " " << std::setw(9) << std::setfill(' ') << std::left
+              << std::dec << i.value() << "\n";
-              << i->typeName() << " " << std::dec << std::setw(3) << std::setfill(' ') << std::right << i->count()
-              << " " << std::dec << i->value() << "\n";
   }
 }