Index: base/format_macros.h |
diff --git a/base/format_macros.h b/base/format_macros.h |
index 383579f3a43107863cb40642106a17dcaaa9e7c8..d218f48a840178770ed1541b4a058c25a9cf0c10 100644 |
--- a/base/format_macros.h |
+++ b/base/format_macros.h |
@@ -5,14 +5,21 @@ |
#ifndef BASE_FORMAT_MACROS_H_ |
#define BASE_FORMAT_MACROS_H_ |
-// This file defines the C99 format macros for 64-bit values. If you wish to |
-// print a 64-bit value in a portable way do: |
+// This file defines the format macros for some integer types. |
+ |
+// To print a 64-bit value in a portable way: |
// int64_t value; |
// printf("xyz:%" PRId64, value); |
+// The "d" in the macro corresponds to %d; you can also use PRIu64 etc. |
// |
// For wide strings, prepend "Wide" to the macro: |
// int64_t value; |
// StringPrintf(L"xyz: %" WidePRId64, value); |
+// |
+// To print a size_t value in a portable way: |
+// size_t size; |
+// printf("xyz: %" PRIuS, size); |
+// The "u" in the macro corresponds to %u, and S is for "size". |
#include "build/build_config.h" |
@@ -35,6 +42,8 @@ |
#define WidePRIu64 PRIu64 |
#define WidePRIx64 PRIx64 |
+#define PRIuS "zu" |
+ |
#else // OS_WIN |
#if !defined(PRId64) |
@@ -53,6 +62,8 @@ |
#define WidePRIu64 L"I64u" |
#define WidePRIx64 L"I64x" |
+#define PRIuS "Iu" |
+ |
#endif |
#endif // !BASE_FORMAT_MACROS_H_ |