Solve No Previous Prototype GCC warning
In some cases there were missing includes of own
header files from implementation files.
In other cases moved function which are only used
within single file into an anonymous namespace.
Change-Id: I2c6b411bcfbc521e2a5f21265dc8e009a548b1c8
diff --git a/internal/ceres/stringprintf.cc b/internal/ceres/stringprintf.cc
index c0f3522..ce20467 100644
--- a/internal/ceres/stringprintf.cc
+++ b/internal/ceres/stringprintf.cc
@@ -28,6 +28,8 @@
//
// Author: Sanjay Ghemawat
+#include "ceres/stringprintf.h"
+
#include <cerrno>
#include <cstdarg> // For va_list and related operations
#include <cstdio> // MSVC requires this for _vsnprintf
