Add wiring_limits.h

This file is analogous to the standard C header <limits.h>.  It
defines various constants within the Wiring language that we consider
to be implementation-defined.  The current version is a work in
progress; more constants may be added as time goes on.

The member constants defined in wiring_limits.h are currently limited
to the core Wiring language.  They do not include
implementation-defined values which pertain to the standard Wiring
libraries.

1 files changed, 49 insertions, 0 deletions

diff --git a/wirish/wiring_limits.h b/wirish/wiring_limits.h
new file mode 100644
index 0000000..f4fde40
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+++ b/wirish/wiring_limits.h
@@ -0,0 +1,49 @@
+/******************************************************************************
+ * The MIT License
+ *
+ * Copyright (c) 2011 LeafLabs, LLC.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *****************************************************************************/
+
+/**
+ * @brief Characteristics of various Wiring functions.
+ *
+ * Includes definitions for values we consider to be
+ * implementation-defined.
+ */
+
+/**
+ * @brief Maximum value returned by analogRead()
+ * @see analogRead()
+ */
+#define ANALOGREAD_MAX                  ((uint16)4095)
+
+/**
+ * @brief Maximum value accepted by analogWrite()
+ * @see analogWrite()
+ */
+#define ANALOGWRITE_MAX                 ((uint16)65535)
+
+/**
+ * @brief sizeof(unsigned int)
+ */
+#define WORD_SIZE                       sizeof(unsigned int)