X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=tests%2Ftest-mktime.cxx;h=6c6734d5133978b406c07aff2be597c08c656a51;hb=8777663fc083411346346df58b2d42720fd9954e;hp=7602d17424d4c25548ca9d96a4fbe5175be6416a;hpb=c90db01dc8d5462a3da22771ffa7c96f5ea31217;p=flightgear.git

diff --git a/tests/test-mktime.cxx b/tests/test-mktime.cxx
index 7602d1742..6c6734d51 100644
--- a/tests/test-mktime.cxx
+++ b/tests/test-mktime.cxx
@@ -22,6 +22,13 @@
 
 #define LST_MAGIC_TIME_1998 890481600
 
+// For now we assume that if daylight is not defined in
+// /usr/include/time.h that we have a machine with a BSD behaving
+// mktime()
+#if !defined(HAVE_DAYLIGHT)
+#  define MK_TIME_IS_GMT 1
+#endif
+
 
 // Fix up timezone if using ftime()
 long int fix_up_timezone( long int timezone_orig ) {
@@ -53,18 +60,6 @@ long int fix_up_timezone( long int timezone_orig ) {
 time_t get_start_gmt(int year) {
     struct tm mt;
 
-    // For now we assume that if daylight is not defined in
-    // /usr/include/time.h that we have a machine with a BSD behaving
-    // mktime()
-#   if !defined(HAVE_DAYLIGHT)
-#       define MK_TIME_IS_GMT 1
-#   endif
-
-    // timezone seems to work as a proper offset for Linux & Solaris
-#   if defined( __linux__ ) || defined( __sun__ ) 
-#       define TIMEZONE_OFFSET_WORKS 1
-#   endif
-
     mt.tm_mon = 2;
     mt.tm_mday = 21;
     mt.tm_year = year;
@@ -73,22 +68,35 @@ time_t get_start_gmt(int year) {
     mt.tm_sec = 0;
     mt.tm_isdst = -1; // let the system determine the proper time zone
 
-#   if defined( MK_TIME_IS_GMT )
+#if defined( HAVE_TIMEGM ) 
+    return ( timegm(&mt) );
+#elif defined( MK_TIME_IS_GMT )
     return ( mktime(&mt) );
-#   else // ! defined ( MK_TIME_IS_GMT )
+#else // ! defined ( MK_TIME_IS_GMT )
 
-    long int start = mktime(&mt);
+    // timezone seems to work as a proper offset for Linux & Solaris
+#  if defined( __linux__ ) || defined( __sun__ ) || defined( __CYGWIN__ )
+#   define TIMEZONE_OFFSET_WORKS 1
+#  endif
+
+#if defined(__CYGWIN__)
+#define TIMEZONE _timezone
+#else
+#define TIMEZONE timezone
+#endif
+
+    time_t start = mktime(&mt);
 
     printf("start1 = %ld\n", start);
     printf("start2 = %s", ctime(&start));
     printf("(tm_isdst = %d)\n", mt.tm_isdst);
 
-    timezone = fix_up_timezone( timezone );
-
-#   if defined( TIMEZONE_OFFSET_WORKS )
-    printf("start = %ld, timezone = %ld\n", start, timezone);
-    return( start - timezone );
-#   else // ! defined( TIMEZONE_OFFSET_WORKS )
+    TIMEZONE = fix_up_timezone( TIMEZONE );
+	
+#  if defined( TIMEZONE_OFFSET_WORKS )
+    printf("start = %ld, timezone = %ld\n", start, TIMEZONE);
+    return( start - TIMEZONE );
+#  else // ! defined( TIMEZONE_OFFSET_WORKS )
 
     daylight = mt.tm_isdst;
     if ( daylight > 0 ) {
@@ -97,19 +105,19 @@ time_t get_start_gmt(int year) {
 	printf("OOOPS, problem in fg_time.cxx, no daylight savings info.\n");
     }
 
-    long int offset = -(timezone / 3600 - daylight);
+    long int offset = -(TIMEZONE / 3600 - daylight);
 
-    printf("  Raw time zone offset = %ld\n", timezone);
+    printf("  Raw time zone offset = %ld\n", TIMEZONE);
     printf("  Daylight Savings = %d\n", daylight);
     printf("  Local hours from GMT = %ld\n", offset);
     
-    long int start_gmt = start - timezone + (daylight * 3600);
+    long int start_gmt = start - TIMEZONE + (daylight * 3600);
     
     printf("  March 21 noon (CST) = %ld\n", start);
 
     return ( start_gmt );
-#   endif // ! defined( TIMEZONE_OFFSET_WORKS )
-#   endif // ! defined ( MK_TIME_IS_GMT )
+#  endif // ! defined( TIMEZONE_OFFSET_WORKS )
+#endif // ! defined ( MK_TIME_IS_GMT )
 }
 
 
@@ -120,13 +128,19 @@ int main() {
 
 
     if ( start_gmt == LST_MAGIC_TIME_1998 ) {
-#ifdef MK_TIME_IS_GMT
-	printf("mktime() assumes GMT on your system, lucky you!\n");
+	printf("Time test = PASSED\n\n");
+#ifdef HAVE_TIMEGM
+	printf("You have timegm() which is just like mktime() except that\n");
+	printf("it explicitely expects input in GMT ... lucky you!\n");
+#elif MK_TIME_IS_GMT
+	printf("You don't seem to have timegm(), but mktime() seems to\n");
+	printf("assume input is GMT on your system ... I guess that works\n");
 #else
 	printf("mktime() assumes local time zone on your system, but we can\n");
 	printf("compensate just fine.\n");
 #endif
     } else {
+	printf("Time test = FAILED\n\n");
 	printf("There is likely a problem with mktime() on your system.\n");
         printf("This will cause the sun/moon/stars/planets to be in the\n");
 	printf("wrong place in the sky and the rendered time of day will be\n");