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Update wikipage Duration. (Signed-off-by:jocelyn).

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git-svn-id: https://svn.eiffel.com/eiffel-org/trunk@1484 abb3cda0-5349-4a8f-a601-0c33ac3a8c38
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2016-01-26 21:15:35 +00:00
parent c36001e745
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1 changed files with 152 additions and 152 deletions
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documentation/trunk/solutions/dates-and-times/eiffeltime/eiffeltime-tutorial/duration.wiki
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@@ -27,7 +27,7 @@ The total number of seconds in the current duration can be obtained by applying
====Comparison==== ====Comparison====
Instances of <eiffel>TIME_DURATION</eiffel> may be compared. The order is the order of the respective total number of seconds. So, 1:-40:0 is less than 0:0:1800, for example. Functions <eiffel><</eiffel>, <eiffel>></eiffel>, <eiffel><=</eiffel>, and <eiffel>>=</eiffel> are available. The <eiffel>BOOLEAN</eiffel> query <eiffel>is_equal</eiffel> (or the object equality operator <eiffel>~</eiffel>) tests object equality, <eiffel>=</eiffel> will compare references. Instances of <eiffel>TIME_DURATION</eiffel> may be compared. The order is the order of the respective total number of seconds. So, 1:-40:0 is less than 0:0:1800, for example. Functions <code><</code>, <code>></code>, <code><=</code>, and <code>>=</code> are available. The <eiffel>BOOLEAN</eiffel> query <eiffel>is_equal</eiffel> (or the object equality operator <eiffel>~</eiffel>) tests object equality, <eiffel>=</eiffel> will compare references.
====Element change==== ====Element change====
@@ -70,7 +70,7 @@ The distinction between definite and relative date duration makes a difference w
Relative durations cannot be compared with any other durations (including zero). This is because of the complexities of the Gregorian calendar. If we consider how many days there are in a duration of one month, we cannot point to a specific integer value that will be correct in all cases ... it depends upon which month we are considering ... and in some cases whether it is a leap year. Relative durations cannot be compared with any other durations (including zero). This is because of the complexities of the Gregorian calendar. If we consider how many days there are in a duration of one month, we cannot point to a specific integer value that will be correct in all cases ... it depends upon which month we are considering ... and in some cases whether it is a leap year.
If a comparison (<eiffel>></eiffel> or <eiffel><</eiffel>) is applied in a state in which either the current instance or the argument or both are relative durations, the result will be always <eiffel>False</eiffel>. If a comparison (<code>></code> or <code><</code>) is applied in a state in which either the current instance or the argument or both are relative durations, the result will be always <eiffel>False</eiffel>.
We are able to determine if two durations have equal value by applying the feature <eiffel>is_equal</eiffel> (or the object equality operator <eiffel>~</eiffel>). We are able to determine if two durations have equal value by applying the feature <eiffel>is_equal</eiffel> (or the object equality operator <eiffel>~</eiffel>).
@@ -98,7 +98,7 @@ Two creation features are available: <eiffel>make</eiffel> takes three arguments
====Comparison==== ====Comparison====
Features <eiffel><</eiffel>, <eiffel>></eiffel>, <eiffel><=</eiffel>, and <eiffel>>=</eiffel> are available. If both instances are definite, numbers of days are compared. If one of them is non-definite, the result is False. Features <code><</code>, <code>></code>, <code><=</code>, and <code>>=</code> are available. If both instances are definite, numbers of days are compared. If one of them is non-definite, the result is False.
====Element change==== ====Element change====
@@ -133,7 +133,7 @@ There are still several ways to create an instance:
====Comparison==== ====Comparison====
The rules are the same than those for <eiffel>DATE_DURATION</eiffel>. Features <eiffel><</eiffel>, <eiffel>></eiffel>, <eiffel><=</eiffel>, and <eiffel>>=</eiffel> are available. If both instances are definite, numbers of days are compared. If one of them is non-definite, the result is False. The rules are the same than those for <eiffel>DATE_DURATION</eiffel>. Features <code><</code>, <code>></code>, <code><=</code>, and <code>>=</code> are available. If both instances are definite, numbers of days are compared. If one of them is non-definite, the result is False.
====Element change==== ====Element change====