Use empty() instead of size() == 0.

llvm-svn: 194551

lld/lib/Core/Resolver.cpp

@@ -227,7 +227,7 @@ void Resolver::doDefinedAtom(const DefinedAtom &atom) {
   switch ( atom.sectionPosition() ) {
   case DefinedAtom::sectionPositionStart:
   case DefinedAtom::sectionPositionEnd:
-    assert(atom.size() == 0);
+    assert(atom.empty());
     break;
   case DefinedAtom::sectionPositionEarly:
   case DefinedAtom::sectionPositionAny:

lld/lib/Driver/InputGraph.cpp

@@ -133,7 +133,7 @@ uint32_t ControlNode::getResolveState() const {
 /// \brief Set the resolve state for the current element
 /// thats processed by the resolver.
 void ControlNode::setResolveState(uint32_t resolveState) {
-  if (_elements.size() == 0)
+  if (_elements.empty())
     return;
   _elements[_currentElementIndex]->setResolveState(resolveState);
 }
@@ -151,7 +151,7 @@ SimpleFileNode::SimpleFileNode(StringRef path, int64_t ordinal)
 /// of the input elements contained in the group.
 ErrorOr<File &> Group::getNextFile() {
   // If there are no elements, move on to the next input element
-  if (_elements.size() == 0)
+  if (_elements.empty())
     return make_error_code(InputGraphError::no_more_files);
 
   for (;;) {

lld/lib/Driver/WinLinkDriver.cpp

@@ -911,7 +911,7 @@ WinLinkDriver::parse(int argc, const char *argv[], PECOFFLinkingContext &ctx,
     }
   }
 
-  if (inputElements.size() == 0 && !isReadingDirectiveSection) {
+  if (inputElements.empty() && !isReadingDirectiveSection) {
     diagnostics << "No input files\n";
     return false;
   }

lld/lib/ReaderWriter/ELF/SectionChunks.h

@@ -576,7 +576,7 @@ StringTable<ELFT>::StringTable(const ELFLinkingContext &context,
 
 template <class ELFT> uint64_t StringTable<ELFT>::addString(StringRef symname) {
 
-  if (symname.size() == 0)
+  if (symname.empty())
     return 0;
   StringMapTIter stringIter = _stringMap.find(symname);
   if (stringIter == _stringMap.end()) {

lld/lib/ReaderWriter/MachO/StubsPass.hpp

@@ -123,7 +123,7 @@ public:
 
   virtual void addStubAtoms(MutableFile &mergedFile) {
     // Exit early if no stubs needed.
-    if ( _targetToStub.size() == 0 )
+    if (_targetToStub.empty())
       return;
     // Add all stubs to master file.
     for (auto it : _targetToStub) {

lld/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp

@@ -666,7 +666,7 @@ private:
       array = array.slice(3);
     }
 
-    if (array.size() == 0)
+    if (array.empty())
       return "";
 
     size_t len = 0;