1 files changed, 54 insertions, 0 deletions
diff --git a/src/utils.h b/src/utils.h
new file mode 100644
index 0000000..f93992d
--- /dev/null
+++ b/src/utils.h
@@ -0,0 +1,54 @@
+/* geml - General extendable macro language
+ *   utils.h Various utility functions
+ *
+ * Copyright (C) 2016 Karel Kočí
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef _UTILS_H_
+#define _UTILS_H_
+
+enum Verbosity {
+	V_DEVEL = -2,
+	V_DEBUG,
+	V_INFO, // = 0
+	V_WARN,
+	V_ERROR,
+	V_DIE
+};
+
+// Sets verbosity level
+void verbosity_set(enum Verbosity level);
+void verbosity_inc(void);
+void verbosity_dec(void);
+
+// Prints given message if it isn't lower than chosen verbosity level
+void print_message(const char *file, const int line, enum Verbosity level, const char *msg, ...);
+#define _PRINT_MESSAGE(LEVEL, ...) print_message(__FILE__, __LINE__, LEVEL, __VA_ARGS__)
+#define DIE(...) do { _PRINT_MESSAGE(V_DIE, __VA_ARGS__); abort(); } while(0)
+#define ERROR(...) _PRINT_MESSAGE(V_ERROR, __VA_ARGS__)
+#define WARN(...) _PRINT_MESSAGE(V_WARN, __VA_ARGS__)
+#define INFO(...) _PRINT_MESSAGE(V_INFO, __VA_ARGS__)
+#define DBG(...) _PRINT_MESSAGE(V_DEBUG, __VA_ARGS__)
+#ifdef DEBUG
+#define DVL(...) _PRINT_MESSAGE(V_DEVEL, __VA_ARGS__)
+#else /* DEBUG */
+#define DEVEL(...)
+#endif /* DEBUG */
+
+#define ASSERT(CHECK) do { if (!(CHECK)) { printf("Assertion failed on %s:%d\n", __FILE__, __LINE__); } } while(0)
+
+#endif /* _UTILS_H_ */