Diff: api/mbed_debug.h

Revision:

9:0ce32e54c9a7

Parent:

2:143cac498751

Child:

10:3bc89ef62ce7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/api/mbed_debug.h	Mon Jun 10 16:03:00 2013 +0100
@@ -0,0 +1,66 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef MBED_DEBUG_H
+#define MBED_DEBUG_H
+#include "device.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef DEVICE_STDIO_MESSAGES
+#include <stdio.h>
+#include <stdarg.h>
+
+/** Output a debug message
+ *
+ * @param format printf-style format string, followed by variables
+ */
+static inline void debug(const char *format, ...) {
+    va_list args;
+    va_start(args, format);
+    vfprintf(stderr, format, args);
+    va_end(args);
+}
+
+/** Conditionally output a debug message
+ *
+ * NOTE: If the condition is constant false (!= 1) and the compiler optimization
+ * level is greater than 0, then the whole function will be compiled away.
+ *
+ * @param condition output only if condition is true (== 1)
+ * @param format printf-style format string, followed by variables
+ */
+static inline void debug_if(int condition, const char *format, ...) {
+    if (condition == 1) {
+        va_list args;
+        va_start(args, format);
+        vfprintf(stderr, format, args);
+        va_end(args);
+    }
+}
+
+#else
+static inline void debug(const char *format, ...) {}
+static inline void debug_if(int condition, const char *format, ...) {}
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif