Detecting and fixing stringprintf.h format bugs

base/files/file_path.h

Index: base/files/file_path.h
diff --git a/base/files/file_path.h b/base/files/file_path.h
index 25b8391c01094387ed583ad64cacb8a611790723..801dda4a962884b7fbebc67e0f25645adc9dfb32 100644
--- a/base/files/file_path.h
+++ b/base/files/file_path.h
@@ -138,10 +138,12 @@ class BASE_EXPORT FilePath {
   // may or may not be specified.  On Mac OS X, native pathnames are encoded
   // in UTF-8.
   typedef std::string StringType;
+#define PRIsFP "s"

[Lei Zhang, 2015/09/30 18:35:01]

You should move these into their own section with documentation for how to use
them, including an example. Not everyone is going to figure out what this is.

"Isn't a PRIuS some kind of a car?"

 #elif defined(OS_WIN)
   // On Windows, for Unicode-aware applications, native pathnames are wchar_t
   // arrays encoded in UTF-16.
   typedef std::wstring StringType;
+#define PRIsFP "ls"
 #endif  // OS_WIN
 
   typedef BasicStringPiece<StringType> StringPieceType;