1 files changed, 52 insertions, 0 deletions
diff --git a/src/lib9/fmt/test3.c b/src/lib9/fmt/test3.c
new file mode 100644
index 00000000..7cda8dcb
--- /dev/null
+++ b/src/lib9/fmt/test3.c
@@ -0,0 +1,52 @@
+#include <u.h>
+#include <libc.h>
+#include <stdio.h>
+
+void
+test(char *fmt, ...)
+{
+	va_list arg;
+	char fmtbuf[100], stdbuf[100];
+
+	va_start(arg, fmt);
+	vsnprint(fmtbuf, sizeof fmtbuf, fmt, arg);
+	va_end(arg);
+
+	va_start(arg, fmt);
+	vsnprint(stdbuf, sizeof stdbuf, fmt, arg);
+	va_end(arg);
+
+	if(strcmp(fmtbuf, stdbuf) != 0)
+		print("fmt %s: fmt=\"%s\" std=\"%s\"\n", fmt, fmtbuf, stdbuf);
+
+	print("fmt %s: %s\n", fmt, fmtbuf);
+}
+
+
+int
+main(int argc, char *argv[])
+{
+	test("%f", 3.14159);
+	test("%f", 3.14159e10);
+	test("%f", 3.14159e-10);
+
+	test("%e", 3.14159);
+	test("%e", 3.14159e10);
+	test("%e", 3.14159e-10);
+
+	test("%g", 3.14159);
+	test("%g", 3.14159e10);
+	test("%g", 3.14159e-10);
+
+	test("%g", 2e25);
+	test("%.18g", 2e25);
+
+	test("%2.18g", 1.0);
+	test("%2.18f", 1.0);
+	test("%f", 3.1415927/4);
+
+	test("%20.10d", 12345);
+	test("%0.10d", 12345);
+
+	return 0;
+}