Moving write errors out of return value into separate API methods.

write(), print(), println() now return size_t (and don't use negative values to signal errors).
Print adds writeError() for checking for write errors, clearWriteError() to reset the flag to false, and a protected setWriteError() for signalling errors.

http://code.google.com/p/arduino/issues/detail?id=598

1 files changed, 1 insertions, 1 deletions

diff --git a/cores/arduino/Printable.h b/cores/arduino/Printable.h
index 9065904..e22e87e 100644
--- a/cores/arduino/Printable.h
+++ b/cores/arduino/Printable.h
@@ -30,7 +30,7 @@ class Print;
 class Printable
 {
   public:
-    virtual ssize_t printTo(Print& p) const = 0;
+    virtual size_t printTo(Print& p) const = 0;
 };
 
 #endif