From 4e347a09bfd59fcb8d32fc8f92fc47a3158b1af9 Mon Sep 17 00:00:00 2001
From: Gertjan van den Burg <gertjanvandenburg@gmail.com>
Date: Mon, 9 May 2016 21:10:59 +0200
Subject: Add err function to write to stderr

---
 src/gensvm_util.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'src')

diff --git a/src/gensvm_util.c b/src/gensvm_util.c
index db99e21..4353b40 100644
--- a/src/gensvm_util.c
+++ b/src/gensvm_util.c
@@ -126,3 +126,23 @@ void note(const char *fmt,...)
 	va_end(ap);
 	(*gensvm_print_string)(buf);
 }
+
+/**
+ * @brief Parse a formatted string and write it to standard error
+ *
+ * @details
+ * Shorthand for fprintf(stderr, ...)
+ *
+ * @param[in] 	fmt 	string format
+ * @param[in] 	... 	variable argument list for the string format
+ */
+void err(const char *fmt, ...)
+{
+	char buf[BUFSIZ];
+	va_list ap;
+	va_start(ap, fmt);
+	vsprintf(buf, fmt, ap);
+	va_end(ap);
+	fputs(buf, stderr);
+	fflush(stderr);
+}
-- 
cgit v1.2.3