Diff: TARGET_SAMR21G18A/stringz.h

Revision:

111:4336505e4b1c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_SAMR21G18A/stringz.h	Tue Dec 15 14:39:38 2015 +0000
@@ -0,0 +1,38 @@
+#ifndef _STRINGZ_H_
+#define _STRINGZ_H_
+
+/**
+ * \defgroup group_sam0_utils_stringz Preprocessor - Stringize
+ *
+ * \ingroup group_sam0_utils
+ *
+ * @{
+ */
+
+/** \brief Stringize.
+ *
+ * Stringize a preprocessing token, this token being allowed to be \#defined.
+ *
+ * May be used only within macros with the token passed as an argument if the
+ * token is \#defined.
+ *
+ * For example, writing STRINGZ(PIN) within a macro \#defined by PIN_NAME(PIN)
+ * and invoked as PIN_NAME(PIN0) with PIN0 \#defined as A0 is equivalent to
+ * writing "A0".
+ */
+#define STRINGZ(x)                                #x
+
+/** \brief Absolute stringize.
+ *
+ * Stringize a preprocessing token, this token being allowed to be \#defined.
+ *
+ * No restriction of use if the token is \#defined.
+ *
+ * For example, writing ASTRINGZ(PIN0) anywhere with PIN0 \#defined as A0 is
+ * equivalent to writing "A0".
+ */
+#define ASTRINGZ(x)                               STRINGZ(x)
+
+/** @} */
+
+#endif  // _STRINGZ_H_