From e9f0dc8bb94c7590891a5c1dc0e1a431a2ed52a3 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Thu, 23 Sep 2004 01:52:47 -0400
Subject: fix to date mask parsing; put in a safety cutoffs when asserts are
 enabled

---
 datetime.cc | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'datetime.cc')

diff --git a/datetime.cc b/datetime.cc
index 0d39d3b3..70b36279 100644
--- a/datetime.cc
+++ b/datetime.cc
@@ -47,8 +47,17 @@ std::time_t interval_t::first(const std::time_t moment)
     }
 
     std::time_t temp;
-    while (std::difftime(moment, temp = increment(quant)) > 0)
+#if DEBUG_LEVEL >= RELEASE
+    int cutoff = 10000;
+#endif
+    while (std::difftime(moment, temp = increment(quant)) > 0) {
+      if (quant == temp)
+	break;
       quant = temp;
+#if DEBUG_LEVEL >= RELEASE
+      assert(--cutoff > 0);
+#endif
+    }
   }
 
   return quant;
@@ -90,7 +99,8 @@ static void parse_inclusion_specifier(const std::string& word,
   struct std::tm when;
 
   if (! parse_date_mask(word.c_str(), &when))
-    throw interval_expr_error("Could not parse 'in' date mask");
+    throw interval_expr_error(std::string("Could not parse date mask: ") +
+			      word);
 
   when.tm_hour = 0;
   when.tm_min  = 0;
-- 
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