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[PATCH v2 3/3] Add tests for strfrom functions

From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>

2016-08-29  Rajalakshmi Srinivasaraghavan  <raji@linux.vnet.ibm.com>

	* stdlib/Makefile (tests): Add tst-strfrom.
	* stdlib/tst-strfrom.c: New file.
---
 stdlib/Makefile      |   3 +-
 stdlib/tst-strfrom.c | 151 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 153 insertions(+), 1 deletion(-)
 create mode 100644 stdlib/tst-strfrom.c

diff --git a/stdlib/Makefile b/stdlib/Makefile
index 687e40b..ea1a4bf 100644
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@@ -78,7 +78,7 @@ tests		:= tst-strtol tst-strtod testmb testrand testsort testdiv   \
 		   tst-tininess tst-strtod-underflow tst-tls-atexit	    \
 		   tst-setcontext3 tst-tls-atexit-nodelete		    \
 		   tst-strtol-locale tst-strtod-nan-locale tst-strfmon_l    \
-		   tst-quick_exit tst-thread-quick_exit
+		   tst-quick_exit tst-thread-quick_exit tst-strfrom
 tests-static	:= tst-secure-getenv
 ifeq ($(have-cxx-thread_local),yes)
 CFLAGS-tst-quick_exit.o = -std=c++11
@@ -157,6 +157,7 @@ $(objpfx)tst-strtod5.out: $(gen-locales)
 $(objpfx)tst-strtol-locale.out: $(gen-locales)
 $(objpfx)tst-strtod-nan-locale.out: $(gen-locales)
 $(objpfx)tst-strfmon_l.out: $(gen-locales)
+$(objpfx)tst-strfrom.out: $(gen-locales)
 endif
 
 # Testdir has to be named stdlib and needs to be writable
diff --git a/stdlib/tst-strfrom.c b/stdlib/tst-strfrom.c
new file mode 100644
index 0000000..719dceb
--- /dev/null
+++ b/stdlib/tst-strfrom.c
@@ -0,0 +1,151 @@
+/* Tests for strfromf, strfromd, strfroml functions.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <float.h>
+#include <math.h>
+#include <locale.h>
+
+#include "tst-strtod.h"
+
+struct ltest
+{
+  const char *expect;
+  double val;
+  const char *fmt;
+  int size;
+  int rc;
+};
+static const struct ltest ltests[] = {
+  {"12345.3", 12345.345, "%g", 50, 7},
+  {"1.000001", 0x80000Ap-23, "%f", 50, 8},
+  {"inf", HUGE_VAL, "%f", 50, 3},
+  {"-inf", -HUGE_VAL, "%g", 50, 4},
+  {"12.345", 12.345, "%g", 50, 6},
+  {"1.2345e+20", 12.345e19, "%g", 50, 10},
+  {"-1e+08", -.1e+9, "%g", 50, 6},
+  {"0.125000", .125, "%f", 50, 8},
+  {"100000", 1e5, "%g", 50, 6},
+  {"9.999", 9.999, "%.3f", 50, 5},
+  {"0.000000", 0.0, "%f", 50, 8},
+  {"0", 0.0, "%g", 50, 1},
+  {"8.000000", 0x10p-1, "%f", 50, 8},
+  {"8", 0x10p-1, "%g", 50, 1},
+  {"INF", DBL_MAX * DBL_MAX, "%F", 50, 3},
+  {"-INF", -DBL_MAX * DBL_MAX, "%G", 50, 4},
+  {"9.900000", 9.9, "%f", 50, 8},
+  {"9.900", 9.9, "%.3f", 50, 5},
+  {"1", 10.000e-1, "%.f", 50, 1},
+  {"2", 200.000e-2, "%g", 50, 1},
+  {"9.912346", 9.91234567812345678, "%f", 50, 8},
+  {"7.987654e+01", 79.87654321, "%e", 50, 12},
+  {"7.987654E+01", 79.87654321, "%E", 50, 12},
+  {"7.988e+01", 79.87654321, "%.3e", 50, 9},
+  {"7.987654e+01", 79.87654321, "%.6e", 50, 12},
+  {"79.8765", 79.87654321, "%g", 50, 7},
+  {"79.8765", 79.87654321, "%G", 50, 7},
+  {"5.070602e+30", 0x1p102, "%e", 50, 12},
+  {"1.038459e+34", 0x1000p101, "%e", 50, 12},
+  {"2.097152e+06", 0x2p020, "%e", 50, 12},
+  {"1.000000e+38", 1e+38, "%e", 50, 12},
+  {"1.000000e+38", 1e38, "%e", 50, 12},
+  {"1.000000e-37", 1e-37, "%e", 50, 12},
+  {"1.000000e-37", 0.00000001e-29, "%e", 50, 12},
+  {"1.000000e-37", 1.000000e-37, "%e", 50, 12},
+  {"3.761582e-37", 0x1p-121, "%e", 50, 12},
+  {"3.761582e-37", 0x0.0001p-105, "%e", 50, 12},
+  {"5.900000e-16", 5.9e-16, "%e", 50, 12},
+  {"1.000001", 0x80000Ap-23, "%f", 50, 8},
+  {"inf", HUGE_VAL, "%f", 50, 3},
+  {"-INF", -HUGE_VAL, "%G", 50, 4},
+  {"1.2345e+20", 12.345e19, "%g", 50, 10},
+  {"0.125000", .125, "%f", 50, 8},
+  {"100000", 1e5, "%g", 50, 6},
+  {"0x1.8p-11", 0x0.0030p+0, "%a", 50, 9},
+  {"0x1p-10", 0x0.0040p+0, "%a", 50, 7},
+  {"0x1.08p+56", 0x1.08p56, "%a", 50, 10},
+  {"0x1p+61", 0x1p61, "%a", 50, 7},
+  {"0x1.0001p+61", 0x1.0001p61, "%a", 50, 12},
+  {"0x1.4p+3", 10.0, "%a", 50, 8},
+  {"0X1.4P+3", 10.0, "%A", 50, 8},
+  {"nan", NAN, "%e", 50, 3},
+  {"-NAN", -NAN, "%G", 50, 4},
+  {"1.79769e+38", 1.79769e+38, "%g", 50, 11},
+  {"nan", __builtin_nan (""), "%f", 50, 3},
+  {"NAN", __builtin_nans (""), "%G", 50, 3},
+  {"9.1", 9.123456, "%.5f", 4, 7},
+  {NULL, 0, "%f", 50, 0},
+};
+
+#define NTESTS (sizeof (tests) / sizeof (tests[0]))
+
+#define TEST_STRFROM(STRTOF, FTYPE, FTOSTR, LSUF, CSUF)			\
+static int								\
+test_ ## STRTOF (void)							\
+{									\
+  char buf[50];								\
+  const struct ltest *lt;						\
+  int status = 0;							\
+  int rc = 0, rc1 = 0;							\
+  for (lt = ltests; lt->expect != NULL; ++lt)				\
+    {									\
+      rc = FTOSTR (buf, lt->size, lt->fmt, lt->val);			\
+      if (strcmp (lt->fmt, "%a") == 0 || strcmp (lt->fmt, "%A") == 0)	\
+	rc1 = (strtold (lt->expect, NULL) == strtold (buf, NULL))	\
+	      ? 0 : 1;							\
+      else								\
+	rc1 = (strcmp (buf, lt->expect) != 0) || (rc != lt->rc);	\
+      if (rc1)								\
+	{								\
+	  printf (#FTOSTR ": got %s (%d), expected %s (%d)\n",		\
+		  buf, rc, lt->expect, lt->rc);				\
+	  status++;							\
+	}								\
+    }									\
+  return status;							\
+}
+
+GEN_TEST_STRTOD_FOREACH (TEST_STRFROM)
+
+static int
+test_locale (const char *locale)
+{
+  printf ("Testing in locale: %s\n", locale);
+  if (setlocale (LC_CTYPE, locale) == NULL)
+    {
+      printf ("Cannot set locale %s\n", locale);
+    }
+  return STRTOD_TEST_FOREACH (test_);
+}
+static int
+do_test (void)
+{
+  int result = 0;
+  result += test_locale ("C");
+  result += test_locale ("de_DE.UTF-8");
+  result += test_locale ("en_US.ISO-8859-1");
+  result += test_locale ("en_US.UTF-8");
+  result += test_locale ("tr_TR.ISO-8859-9");
+  result += test_locale ("tr_TR.UTF-8");
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
-- 
2.4.11
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