From: Paul Eggert <eggert@cs.ucla.edu>
Date: Thu, 7 May 2026 18:24:22 +0000 (-0700)
Subject: bench-tests: work with wchar-single
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d60036ddca99d4f682f6412a129d8aa8b51e1cc2;p=thirdparty%2Fgnulib.git

bench-tests: work with wchar-single

* modules/mbiter-bench-tests, modules/mbiterf-bench-tests:
* modules/mbswidth-bench-tests, modules/mbuiter-bench-tests:
* modules/mbuiterf-bench-tests, modules/mcel-bench-tests:
(Depends-on): Add streq.
* tests/bench-mbiter.c, tests/bench-mbiterf.c, tests/bench-mbswidth.c:
* tests/bench-mbuiter.c, tests/bench-mbuiterf.c, tests/bench-mcel.c:
If GNULIB_WCHAR_SINGLE_LOCALE, don’t call setlocale with different
locales.
---

diff --git a/ChangeLog b/ChangeLog
index c2c49d0ca5..a3e37f6e93 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,15 @@
 2026-05-07  Paul Eggert  <eggert@cs.ucla.edu>
 
+	bench-tests: work with wchar-single
+	* modules/mbiter-bench-tests, modules/mbiterf-bench-tests:
+	* modules/mbswidth-bench-tests, modules/mbuiter-bench-tests:
+	* modules/mbuiterf-bench-tests, modules/mcel-bench-tests:
+	(Depends-on): Add streq.
+	* tests/bench-mbiter.c, tests/bench-mbiterf.c, tests/bench-mbswidth.c:
+	* tests/bench-mbuiter.c, tests/bench-mbuiterf.c, tests/bench-mcel.c:
+	If GNULIB_WCHAR_SINGLE_LOCALE, don’t call setlocale with different
+	locales.
+
 	regex-tests: fix usage of fastmap API
 	* tests/test-regex.c (main): Use documented fastmap API
 	rather than relying on undocumented behavior.
diff --git a/modules/mbiter-bench-tests b/modules/mbiter-bench-tests
index ec22673d1a..1648054e84 100644
--- a/modules/mbiter-bench-tests
+++ b/modules/mbiter-bench-tests
@@ -7,6 +7,7 @@ Depends-on:
 mbrtoc32-regular
 mbiter
 setlocale
+streq
 striconv
 getrusage
 gettimeofday
diff --git a/modules/mbiterf-bench-tests b/modules/mbiterf-bench-tests
index b4b530dc5a..dc837a2304 100644
--- a/modules/mbiterf-bench-tests
+++ b/modules/mbiterf-bench-tests
@@ -7,6 +7,7 @@ Depends-on:
 mbrtoc32-regular
 mbiterf
 setlocale
+streq
 striconv
 getrusage
 gettimeofday
diff --git a/modules/mbswidth-bench-tests b/modules/mbswidth-bench-tests
index f8edf91dfe..8ffc21db2e 100644
--- a/modules/mbswidth-bench-tests
+++ b/modules/mbswidth-bench-tests
@@ -7,6 +7,7 @@ Depends-on:
 mbrtoc32-regular
 mbswidth
 setlocale
+streq
 striconv
 getrusage
 gettimeofday
diff --git a/modules/mbuiter-bench-tests b/modules/mbuiter-bench-tests
index de98778fd6..29b72b342e 100644
--- a/modules/mbuiter-bench-tests
+++ b/modules/mbuiter-bench-tests
@@ -7,6 +7,7 @@ Depends-on:
 mbrtoc32-regular
 mbuiter
 setlocale
+streq
 striconv
 getrusage
 gettimeofday
diff --git a/modules/mbuiterf-bench-tests b/modules/mbuiterf-bench-tests
index cf806ecc49..c9551bff88 100644
--- a/modules/mbuiterf-bench-tests
+++ b/modules/mbuiterf-bench-tests
@@ -7,6 +7,7 @@ Depends-on:
 mbrtoc32-regular
 mbuiterf
 setlocale
+streq
 striconv
 getrusage
 gettimeofday
diff --git a/modules/mcel-bench-tests b/modules/mcel-bench-tests
index 0c54aad819..1599505fdd 100644
--- a/modules/mcel-bench-tests
+++ b/modules/mcel-bench-tests
@@ -11,6 +11,7 @@ mbuiter
 mbuiterf
 mcel
 setlocale
+streq
 striconv
 getrusage
 gettimeofday
diff --git a/tests/bench-mbiter.c b/tests/bench-mbiter.c
index b7bea54805..3593c164e6 100644
--- a/tests/bench-mbiter.c
+++ b/tests/bench-mbiter.c
@@ -27,12 +27,26 @@
 
 unsigned long long volatile result;
 
+#ifndef GNULIB_WCHAR_SINGLE_LOCALE
+# define GNULIB_WCHAR_SINGLE_LOCALE 0
+#endif
+
 static void
 do_test (char test, int repeat, const char *locale_name, const char *text)
 {
   printf ("Test %c\n", test);
-  if (setlocale (LC_ALL, locale_name) != NULL)
+
+  static char const *current_locale_name;
+  if (GNULIB_WCHAR_SINGLE_LOCALE && current_locale_name
+      && !streq (locale_name, current_locale_name))
+    printf ("Skipping test: earlier locale %s != test locale %s\n",
+            current_locale_name, locale_name);
+  else if (!setlocale (LC_ALL, locale_name))
+    printf ("Skipping test: locale %s not installed.\n", locale_name);
+  else
     {
+      current_locale_name = locale_name;
+
       struct timings_state ts;
       timing_start (&ts);
 
@@ -51,10 +65,6 @@ do_test (char test, int repeat, const char *locale_name, const char *text)
       timing_end (&ts);
       timing_output (&ts);
     }
-  else
-    {
-      printf ("Skipping test: locale %s not installed.\n", locale_name);
-    }
   printf ("\n");
 }
 
diff --git a/tests/bench-mbiterf.c b/tests/bench-mbiterf.c
index 505e5fbc6a..57564f5265 100644
--- a/tests/bench-mbiterf.c
+++ b/tests/bench-mbiterf.c
@@ -27,12 +27,26 @@
 
 unsigned long long volatile result;
 
+#ifndef GNULIB_WCHAR_SINGLE_LOCALE
+# define GNULIB_WCHAR_SINGLE_LOCALE 0
+#endif
+
 static void
 do_test (char test, int repeat, const char *locale_name, const char *text)
 {
   printf ("Test %c\n", test);
-  if (setlocale (LC_ALL, locale_name) != NULL)
+
+  static char const *current_locale_name;
+  if (GNULIB_WCHAR_SINGLE_LOCALE && current_locale_name
+      && !streq (locale_name, current_locale_name))
+    printf ("Skipping test: earlier locale %s != test locale %s\n",
+            current_locale_name, locale_name);
+  else if (!setlocale (LC_ALL, locale_name))
+    printf ("Skipping test: locale %s not installed.\n", locale_name);
+  else
     {
+      current_locale_name = locale_name;
+
       struct timings_state ts;
       timing_start (&ts);
 
@@ -55,10 +69,6 @@ do_test (char test, int repeat, const char *locale_name, const char *text)
       timing_end (&ts);
       timing_output (&ts);
     }
-  else
-    {
-      printf ("Skipping test: locale %s not installed.\n", locale_name);
-    }
   printf ("\n");
 }
 
diff --git a/tests/bench-mbswidth.c b/tests/bench-mbswidth.c
index 4facad04fc..bad0adcf5c 100644
--- a/tests/bench-mbswidth.c
+++ b/tests/bench-mbswidth.c
@@ -25,12 +25,26 @@
 #include "bench-multibyte.h"
 #include "mbswidth.h"
 
+#ifndef GNULIB_WCHAR_SINGLE_LOCALE
+# define GNULIB_WCHAR_SINGLE_LOCALE 0
+#endif
+
 static void
 do_test (char test, int repeat, const char *locale_name, const char *text)
 {
   printf ("Test %c\n", test);
-  if (setlocale (LC_ALL, locale_name) != NULL)
+
+  static char const *current_locale_name;
+  if (GNULIB_WCHAR_SINGLE_LOCALE && current_locale_name
+      && !streq (locale_name, current_locale_name))
+    printf ("Skipping test: earlier locale %s != test locale %s\n",
+            current_locale_name, locale_name);
+  else if (!setlocale (LC_ALL, locale_name))
+    printf ("Skipping test: locale %s not installed.\n", locale_name);
+  else
     {
+      current_locale_name = locale_name;
+
       struct timings_state ts;
       timing_start (&ts);
 
@@ -42,10 +56,6 @@ do_test (char test, int repeat, const char *locale_name, const char *text)
       timing_end (&ts);
       timing_output (&ts);
     }
-  else
-    {
-      printf ("Skipping test: locale %s not installed.\n", locale_name);
-    }
   printf ("\n");
 }
 
diff --git a/tests/bench-mbuiter.c b/tests/bench-mbuiter.c
index 2fda0506c9..b1e4eccc6f 100644
--- a/tests/bench-mbuiter.c
+++ b/tests/bench-mbuiter.c
@@ -27,12 +27,26 @@
 
 unsigned long long volatile result;
 
+#ifndef GNULIB_WCHAR_SINGLE_LOCALE
+# define GNULIB_WCHAR_SINGLE_LOCALE 0
+#endif
+
 static void
 do_test (char test, int repeat, const char *locale_name, const char *text)
 {
   printf ("Test %c\n", test);
-  if (setlocale (LC_ALL, locale_name) != NULL)
+
+  static char const *current_locale_name;
+  if (GNULIB_WCHAR_SINGLE_LOCALE && current_locale_name
+      && !streq (locale_name, current_locale_name))
+    printf ("Skipping test: earlier locale %s != test locale %s\n",
+            current_locale_name, locale_name);
+  else if (!setlocale (LC_ALL, locale_name))
+    printf ("Skipping test: locale %s not installed.\n", locale_name);
+  else
     {
+      current_locale_name = locale_name;
+
       struct timings_state ts;
       timing_start (&ts);
 
@@ -50,10 +64,6 @@ do_test (char test, int repeat, const char *locale_name, const char *text)
       timing_end (&ts);
       timing_output (&ts);
     }
-  else
-    {
-      printf ("Skipping test: locale %s not installed.\n", locale_name);
-    }
   printf ("\n");
 }
 
diff --git a/tests/bench-mbuiterf.c b/tests/bench-mbuiterf.c
index 5f51c9b01a..92c3174599 100644
--- a/tests/bench-mbuiterf.c
+++ b/tests/bench-mbuiterf.c
@@ -27,12 +27,26 @@
 
 unsigned long long volatile result;
 
+#ifndef GNULIB_WCHAR_SINGLE_LOCALE
+# define GNULIB_WCHAR_SINGLE_LOCALE 0
+#endif
+
 static void
 do_test (char test, int repeat, const char *locale_name, const char *text)
 {
   printf ("Test %c\n", test);
-  if (setlocale (LC_ALL, locale_name) != NULL)
+
+  static char const *current_locale_name;
+  if (GNULIB_WCHAR_SINGLE_LOCALE && current_locale_name
+      && !streq (locale_name, current_locale_name))
+    printf ("Skipping test: earlier locale %s != test locale %s\n",
+            current_locale_name, locale_name);
+  else if (!setlocale (LC_ALL, locale_name))
+    printf ("Skipping test: locale %s not installed.\n", locale_name);
+  else
     {
+      current_locale_name = locale_name;
+
       struct timings_state ts;
       timing_start (&ts);
 
@@ -53,10 +67,6 @@ do_test (char test, int repeat, const char *locale_name, const char *text)
       timing_end (&ts);
       timing_output (&ts);
     }
-  else
-    {
-      printf ("Skipping test: locale %s not installed.\n", locale_name);
-    }
   printf ("\n");
 }
 
diff --git a/tests/bench-mcel.c b/tests/bench-mcel.c
index d8f91a4b16..f100a366c1 100644
--- a/tests/bench-mcel.c
+++ b/tests/bench-mcel.c
@@ -191,12 +191,25 @@ do_1_test (test_function test, char const *text,
   return sum;
 }
 
+#ifndef GNULIB_WCHAR_SINGLE_LOCALE
+# define GNULIB_WCHAR_SINGLE_LOCALE 0
+#endif
+
 static void
 do_test (char test, int repeat, char const *locale_name,
          char const *text, size_t text_len)
 {
-  if (setlocale (LC_ALL, locale_name) != NULL)
+  static char const *current_locale_name;
+  if (GNULIB_WCHAR_SINGLE_LOCALE && current_locale_name
+      && !streq (locale_name, current_locale_name))
+    printf ("Skipping test: earlier locale %s != test locale %s\n",
+            current_locale_name, locale_name);
+  else if (!setlocale (LC_ALL, locale_name))
+    printf ("Skipping test: locale %s not installed.\n", locale_name);
+  else
     {
+      current_locale_name = locale_name;
+
       char const *text_end = text + text_len;
 
       static struct
@@ -220,8 +233,6 @@ do_test (char test, int repeat, char const *locale_name,
         testdesc[i].sum =
           do_1_test (testdesc[i].fn, text, text_end, repeat, &testdesc[i].ts);
 
-      setlocale (LC_ALL, "C");
-
       static bool header_printed;
       if (!header_printed)
         {
@@ -241,10 +252,6 @@ do_test (char test, int repeat, char const *locale_name,
         }
       printf ("\n");
     }
-  else
-    {
-      printf ("Skipping test: locale %s not installed.\n", locale_name);
-    }
 }
 
 /* Performs some or all of the following tests: