1 files changed, 40 insertions, 0 deletions
diff --git a/deps/sysobj_early/include/appf.h b/deps/sysobj_early/include/appf.h
new file mode 100644
index 00000000..b99f9373
--- /dev/null
+++ b/deps/sysobj_early/include/appf.h
@@ -0,0 +1,40 @@
+/*
+ * sysobj - https://github.com/bp0/verbose-spork
+ * Copyright (C) 2018  Burt P. <pburt0@gmail.com>
+ *
+ * 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 _APPF_H_
+#define _APPF_H_
+
+/* Appends a formatted element to a string, adding an optional
+ * separator string if the string is not empty.
+ * The string is created if str is null.
+ * ex: ret = appf(ret, "; ", "%s = %d", name, value); */
+char *appf(char *str, const char *sep, const char *fmt, ...)
+    __attribute__ ((format (printf, 3, 4)));
+
+/* Same as above except that str is untouched.
+ * ex: ret = appf(keeper, "; ", "%s = %d", name, value); */
+char *appfdup(const char *str, const char *sep, const char *fmt, ...)
+    __attribute__ ((format (printf, 3, 4)));
+
+/* for convenience */
+#define appfsp(str, fmt, ...) appf(str, " ", fmt, __VA_ARGS__)
+#define appfnl(str, fmt, ...) appf(str, "\n", fmt, __VA_ARGS__)
+
+#endif