tests/mpz/io.c: Test out-of-range bases for mpz_out_str

1 files changed, 14 insertions, 1 deletions

diff --git a/tests/mpz/io.c b/tests/mpz/io.c
index 892f61d61..3522e9ddb 100644
--- a/tests/mpz/io.c
+++ b/tests/mpz/io.c
@@ -1,6 +1,7 @@
 /* Test conversion and I/O using mpz_out_str and mpz_inp_str.
 
-Copyright 1993, 1994, 1996, 2000, 2001, 2012 Free Software Foundation, Inc.
+Copyright 1993, 1994, 1996, 2000, 2001, 2012, 2020 Free Software
+Foundation, Inc.
 
 This file is part of the GNU MP Library test suite.
 
@@ -63,6 +64,18 @@ main (int argc, char **argv)
 
   fp = fopen (FILENAME, "w+");
 
+  if (mpz_out_str (fp, 63, op1) != 0)
+    {
+      printf ("mpz_out_str did not return 0 (error) with base > 62\n");
+      abort ();
+    }
+
+  if (mpz_out_str (fp, -37, op1) != 0)
+    {
+      printf ("mpz_out_str did not return 0 (error) with base < -37\n");
+      abort ();
+    }
+
   for (i = 0; i < reps; i++)
     {
       mpz_urandomb (bs, rands, 32);