1 files changed, 85 insertions, 0 deletions
diff --git a/mpfr/tests/tout_str.c b/mpfr/tests/tout_str.c
new file mode 100644
index 000000000..cfb8a822e
--- /dev/null
+++ b/mpfr/tests/tout_str.c
@@ -0,0 +1,85 @@
+/* Test file for mpfr_out_str.
+
+Copyright (C) 1999 PolKA project, Inria Lorraine and Loria
+
+This file is part of the MPFR Library.
+
+The MPFR Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The MPFR Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the MPFR Library; see the file COPYING.LIB.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+MA 02111-1307, USA. */
+
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "gmp.h"
+#include "mpfr.h"
+#include "mpfr-impl.h"
+
+FILE *fout;
+
+#define check(d,r,b) check4(d,r,b,53)
+
+void check4(d, rnd, base, prec) double d; unsigned char rnd; int base, prec;
+{
+  mpfr_t x;
+
+  mpfr_init2(x, prec);
+  mpfr_set_d(x, d, rnd);
+  mpfr_set_machine_rnd_mode(rnd);
+  fprintf(fout, "%1.19e base %d rnd %d:\n ", d, base, rnd);
+  mpfr_out_str(fout, base, (base==2) ? prec : 0, x, rnd);
+  fputc('\n', fout);
+  mpfr_clear(x);
+}
+
+int
+main(int argc, char **argv)
+{
+  int i,N=100,r,p; double d;
+
+  /* with no argument: prints to /dev/null,
+     tout_str N: prints N tests to stdout */
+  if (argc==1) fout=fopen("/dev/null", "w");
+  else { fout=stdout; N=atoi(argv[1]); }
+  check(-1.5674376729569697500e+15, GMP_RNDN, 19);
+  check(-5.71262771772792640000e-79, GMP_RNDU, 16);
+  check(-0.0, GMP_RNDU, 7);
+  check(-4.5306392613572974756e-308, GMP_RNDN, 8);
+  check(-6.7265890111403371523e-165, GMP_RNDN, 4);
+  check(-1.3242553591261807653e+156, GMP_RNDN, 16);
+  check(-6.606499965302424244461355e233, GMP_RNDN, 10);
+  check4(1.0, GMP_RNDN, 10, 120);
+  check(1.0, GMP_RNDU, 10);
+  check(4.059650008e-83, GMP_RNDN, 10);
+  check(-7.4, GMP_RNDN, 10);
+  check(0.997, GMP_RNDN, 10);
+  check(-4.53063926135729747564e-308, GMP_RNDN, 10);
+  check(2.14478198760196000000e+16, GMP_RNDN, 10);
+  check(7.02293374921793516813e-84, GMP_RNDN, 10);
+
+  /* random tests */
+  srand(getpid());
+  for (i=0;i<N;i++) {
+    do { d = drand(); } while (isnan(d));
+    r = rand()%4;
+    p = 2 + rand()%35;
+    check(d, r, p);
+  }
+  exit (0);
+}
+
+
+