1 files changed, 46 insertions, 0 deletions
diff --git a/have/vasprintf.c b/have/vasprintf.c
new file mode 100644
index 0000000..2d1ac0b
--- /dev/null
+++ b/have/vasprintf.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+static int	testfn(char **, const char*, ...);
+
+static int
+testfn(char **ret, const char *fmt, ...)
+{
+	va_list	ap;
+	int	irc;
+
+	va_start(ap, fmt);
+	irc = vasprintf(ret, fmt, ap);
+	va_end(ap);
+
+	return irc;
+}
+
+int
+main(void)
+{
+	char	*ret;
+
+	if (testfn(&ret, "%s.", "Text") != 5)
+		return 1;
+	if (strcmp(ret, "Text."))
+		return 2;
+	return 0;
+}