Add compiler-specific "examine printf format" attributes to printfs.

courgette/adjustment_method_2.cc

Index: courgette/adjustment_method_2.cc
diff --git a/courgette/adjustment_method_2.cc b/courgette/adjustment_method_2.cc
index 49fcf49a5bdd86f23746fe83446e7a43ee6fdc4d..9cb9dbd300c85af5cb1dfd66c5eff8546bade409 100644
--- a/courgette/adjustment_method_2.cc
+++ b/courgette/adjustment_method_2.cc
@@ -15,6 +15,7 @@
 #include <iostream>
 
 #include "base/basictypes.h"
+#include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/string_util.h"
 
@@ -461,8 +462,8 @@ std::string ToString(const Shingle* instance) {
     s += ToString(instance->at(i));
     sep = ", ";
   }
-  StringAppendF(&s, ">(%u)@{%d}", instance->exemplar_position_,
-                static_cast<int>(instance->position_count()));
+  StringAppendF(&s, ">(%" PRIuS ")@{%" PRIuS "}", instance->exemplar_position_,
+                instance->position_count());
   return s;
 }
 
@@ -578,7 +579,7 @@ std::string HistogramToString(const ShinglePattern::Histogram& histogram,
       s += " ...";
       break;
     }
-    StringAppendF(&s, " %d", p->count());
+    StringAppendF(&s, " %" PRIuS, p->count());
   }
   return s;
 }
@@ -598,7 +599,7 @@ std::string HistogramToStringFull(const ShinglePattern::Histogram& histogram,
       s += "...\n";
       break;
     }
-    StringAppendF(&s, "(%d) ", p->count());
+    StringAppendF(&s, "(%" PRIuS ") ", p->count());
     s += ToString(&(*p->instance()));
     s += "\n";
   }
@@ -633,9 +634,9 @@ std::string ShinglePatternToStringFull(const ShinglePattern* pattern,
   s += "\n";
   size_t model_size = pattern->model_histogram_.size();
   size_t program_size = pattern->program_histogram_.size();
-  StringAppendF(&s, "  model shingles %u\n", model_size);
+  StringAppendF(&s, "  model shingles %" PRIuS "\n", model_size);
   s += HistogramToStringFull(pattern->model_histogram_, "    ", max);
-  StringAppendF(&s, "  program shingles %u\n", program_size);
+  StringAppendF(&s, "  program shingles %" PRIuS "\n", program_size);
   s += HistogramToStringFull(pattern->program_histogram_, "    ", max);
   return s;
 }