Change other usages of .size() to .empty() when applicable.

courgette/encoded_program.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "courgette/encoded_program.h"
 
 #include <algorithm>
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 177 matching lines @@
 
 void EncodedProgram::AddCopy(uint32 count, const void* bytes) {
   const uint8* source = static_cast<const uint8*>(bytes);
 
   // Fold adjacent COPY instructions into one.  This nearly halves the size of
   // an EncodedProgram with only COPY1 instructions since there are approx plain
   // 16 bytes per reloc.  This has a working-set benefit during decompression.
   // For compression of files with large differences this makes a small (4%)
   // improvement in size.  For files with small differences this degrades the
   // compressed size by 1.3%
-  if (ops_.size() > 0) {
+  if (!ops_.empty()) {
     if (ops_.back() == COPY1) {
       ops_.back() = COPY;
       copy_counts_.push_back(1);
     }
     if (ops_.back() == COPY) {
       copy_counts_.back() += count;
       for (uint32 i = 0;  i < count;  ++i) {
         copy_bytes_.push_back(source[i]);
       }
       return;
@@ skipping 354 matching lines @@
   if (assembled)
     return C_OK;
   return C_ASSEMBLY_FAILED;
 }
 
 void DeleteEncodedProgram(EncodedProgram* encoded) {
   delete encoded;
 }
 
 }  // end namespace