1 files changed, 26 insertions, 0 deletions
diff --git a/test/fmtspcl.awk b/test/fmtspcl.awk
new file mode 100644
index 00000000..6f037a3a
--- /dev/null
+++ b/test/fmtspcl.awk
@@ -0,0 +1,26 @@
+function display(x,str,  i,res) {
+	for (i = 0; i < n; i++) {
+		if ((res = sprintf(formats[i],x)) != str)
+			printf "sprintf(%s,%s) = %s (!= %s)\n",
+			       formats[i],x,res,str
+	}
+}
+
+BEGIN {
+	nan = sqrt(-1)
+	nan_str = sprintf("%f",nan)
+	nnan_str = sprintf("%f",-nan)
+	inf = -log(0)
+	inf_str = sprintf("%f",inf)
+
+	n = 0
+	formats[n++] = "%f"
+	formats[n++] = "%s"
+	formats[n++] = "%g"
+	formats[n++] = "%x"
+	formats[n++] = "%d"
+	display(nan,nan_str)
+	display(-nan,nnan_str)
+	display(inf,inf)
+	display(-inf,"-"inf_str)
+}