Add probes for LOCALTIME_max and LOCALTIME_min

p4raw-id: //depot/metaconfig@34362

diff --git a/U/perl/time_size.U b/U/perl/time_size.U
index c2b9611..cb1be54 100644 (file)
--- a/U/perl/time_size.U
+++ b/U/perl/time_size.U
@@ -5,7 +5,8 @@
 ?RCS: You may distribute under the terms of either the GNU General Public
 ?RCS: License or the Artistic License, as specified in the README file.
 ?RCS:
-?MAKE:sGMTIME_max sGMTIME_min: cat rm_try Setvar Compile run i_values
+?MAKE:sGMTIME_max sGMTIME_min sLOCALTIME_max sLOCALTIME_min: cat rm_try \
+       Setvar Compile run i_values
 ?MAKE: -pick add $@ %<
 ?S:sGMTIME_max:
 ?S:    This variable defines the maximum value of the time_t offset that
@@ -15,6 +16,14 @@
 ?S:    This variable defines the minimum value of the time_t offset that
 ?S:    the system function gmtime () accepts
 ?S:.
+?S:sLOCALTIME_max:
+?S:    This variable defines the maximum value of the time_t offset that
+?S:    the system function localtime () accepts
+?S:.
+?S:sLOCALTIME_min:
+?S:    This variable defines the minimum value of the time_t offset that
+?S:    the system function localtime () accepts
+?S:.
 ?C:GMTIME_MAX:
 ?C:    This symbol contains the maximum value for the time_t offset that
 ?C:    the system function gmtime () accepts, and defaults to 0
@@ -23,14 +32,26 @@
 ?C:    This symbol contains the minimum value for the time_t offset that
 ?C:    the system function gmtime () accepts, and defaults to 0
 ?C:.
-?H:#define GMTIME_MAX  $sGMTIME_max    /**/
-?H:#define GMTIME_MIN  $sGMTIME_min    /**/
+?C:LOCALTIME_MAX:
+?C:    This symbol contains the maximum value for the time_t offset that
+?C:    the system function localtime () accepts, and defaults to 0
+?C:.
+?C:LOCALTIME_MIN:
+?C:    This symbol contains the minimum value for the time_t offset that
+?C:    the system function localtime () accepts, and defaults to 0
+?C:.
+?H:#define GMTIME_MAX          $sGMTIME_max    /**/
+?H:#define GMTIME_MIN          $sGMTIME_min    /**/
+?H:#define LOCALTIME_MAX       $sLOCALTIME_max /**/
+?H:#define LOCALTIME_MIN       $sLOCALTIME_min /**/
 ?H:.
 ?D:sGMTIME_max=0
 ?D:sGMTIME_min=0
+?D:sLOCALTIME_max=0
+?D:sLOCALTIME_min=0
 ?F:!try
 ?T:yyy
-: Check the max offset that gmtime accepts
+: Check the max offset that gmtime and localtime accept
 echo "Checking max offsets that gmtime () accepts"
 
 case $i_values in
@@ -59,54 +80,125 @@ void gm_check (time_t t)
 
 int check_max ()
 {
-  tmp = NULL;
-  pt  = 0;
+    tmp = NULL;
+    pt  = 0;
 #ifdef MAXLONG
-  gm_check (MAXLONG);
+    gm_check (MAXLONG);
 #endif
-  if (tmp == NULL || tmp->tm_year < 0) {
-    for (i = 63; i >= 0; i--) {
-      time_t x = pt | ((time_t)1 << i);
-      if (x < 0) continue;
-      gm_check (x);
-      }
-    }
-  printf ("sGMTIME_max=%ld\n", pt);
-  return (0);
-  }
+    if (tmp == NULL || tmp->tm_year < 0) {
+       for (i = 63; i >= 0; i--) {
+           time_t x = pt | ((time_t)1 << i);
+           if (x < 0) continue;
+           gm_check (x);
+           }
+       }
+    printf ("sGMTIME_max=%ld\n", pt);
+    return (0);
+  } /* check_max */
 
 int check_min ()
 {
-  tmp = NULL;
-  pt  = 0;
+    tmp = NULL;
+    pt  = 0;
 #ifdef MINLONG
-  gm_check (MINLONG);
+    gm_check (MINLONG);
 #endif
-  if (tmp == NULL) {
-    for (i = 36; i >= 0; i--) {
-      time_t x = pt - ((time_t)1 << i);
-      if (x > 0) continue;
-      gm_check (x);
-      }
-    }
-  printf ("sGMTIME_min=%ld\n", pt);
-  return (0);
-  }
+    if (tmp == NULL) {
+       for (i = 36; i >= 0; i--) {
+           time_t x = pt - ((time_t)1 << i);
+           if (x > 0) continue;
+           gm_check (x);
+           }
+       }
+    printf ("sGMTIME_min=%ld\n", pt);
+    return (0);
+    } /* check_min */
 
 int main (int argc, char *argv[])
 {
-  fprintf (stderr, "Sizeof time_t = %ld\n", sizeof (time_t));
-  check_max ();
-  check_min ();
-  return (0);
-  } /* main */
+    fprintf (stderr, "Sizeof time_t = %ld\n", sizeof (time_t));
+    check_max ();
+    check_min ();
+    return (0);
+    } /* main */
 EOCP
 set try
 if eval $compile; then
-    yyy=`$run ./try`
-    eval $yyy
+    eval `$run ./try`
 else
     echo "Cannot determine sGMTIME_max and sGMTIME_min." >&4
     fi
 $rm_try
 
+echo "Checking max offsets that localtime () accepts"
+
+$cat >try.c <<EOCP
+#include <sys/types.h>
+#include <stdio.h>
+#include <time.h>
+$yyy
+
+int i;
+struct tm *tmp;
+time_t pt;
+
+void local_check (time_t t)
+{
+    tmp = localtime (&t);
+    if (tmp == NULL || tmp->tm_year < -1900)
+       tmp = NULL;
+    else
+       pt = t;
+    } /* local_check */
+
+int check_max ()
+{
+    tmp = NULL;
+    pt  = 0;
+#ifdef MAXLONG
+    local_check (MAXLONG);
+#endif
+    if (tmp == NULL || tmp->tm_year < 0) {
+       for (i = 63; i >= 0; i--) {
+           time_t x = pt | ((time_t)1 << i);
+           if (x < 0) continue;
+           local_check (x);
+           }
+       }
+    printf ("sLOCALTIME_max=%ld\n", pt);
+    return (0);
+  } /* check_max */
+
+int check_min ()
+{
+    tmp = NULL;
+    pt  = 0;
+#ifdef MINLONG
+    local_check (MINLONG);
+#endif
+    if (tmp == NULL) {
+       for (i = 36; i >= 0; i--) {
+           time_t x = pt - ((time_t)1 << i);
+           if (x > 0) continue;
+           local_check (x);
+           }
+       }
+    printf ("sLOCALTIME_min=%ld\n", pt);
+    return (0);
+    } /* check_min */
+
+int main (int argc, char *argv[])
+{
+    check_max ();
+    check_min ();
+    return (0);
+    } /* main */
+EOCP
+set try
+if eval $compile; then
+    eval `$run ./try`
+else
+    echo "Cannot determine sLOCALTIME_max and sLOCALTIME_min." >&4
+    fi
+$rm_try
+