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Bug #11880 » 10.html

На этом документе воспроизводится - Viktoria Kopach, 09/01/2022 06:55 PM

 
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<P LANG="en-US" CLASS="western" STYLE="margin-bottom: 0.49cm; line-height: 100%">
<FONT FACE="Times New Roman, serif"><FONT SIZE=6><B>10 Declaring
constants</B></FONT></FONT></P>
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<FONT FACE="Times New Roman, serif"><SPAN LANG="en-US"><FONT SIZE=3 STYLE="font-size: 13pt">TTCN-3
constants are run-time constants. After value assignment, they do not
change their value during test execution.&nbsp;They can be used on
the right hand side of assignments,&nbsp;in expressions,&nbsp;in
actual parameters, and in template definitions. Constants used within
type definitions&nbsp;have to have values known at compile-time.</FONT></SPAN></FONT></P>
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<FONT FACE="Times New Roman, serif"><FONT SIZE=3 STYLE="font-size: 13pt"><I><B>Semantic
Description</B></I></FONT></FONT></P>
<P CLASS="western" STYLE="margin-top: 0.49cm; margin-bottom: 0.35cm; line-height: 100%"><A NAME="6bad5fd1-f781-4575-9bf7-7d072192b195"></A><A NAME="46a823b1-6b23-422e-8806-9aa7d48db19d"></A><A NAME="c15669fb-0f00-45db-adbb-3fb15aaca0a9"></A><A NAME="1763e6bf-c0ab-43e8-b849-fcc56bfa9918"></A>
<FONT COLOR="#000000"><FONT FACE="Times New Roman, serif"><FONT SIZE=3 STYLE="font-size: 13pt"><SPAN LANG="en-US">A
constant assigns a name to a fixed value.</SPAN></FONT></FONT></FONT><FONT COLOR="#000000">&nbsp;</FONT><FONT COLOR="#000000"><FONT FACE="Times New Roman, serif"><FONT SIZE=3 STYLE="font-size: 13pt"><SPAN LANG="en-US">A
value is assigned only once to a constant, at the place of its
declaration.</SPAN></FONT></FONT></FONT><FONT COLOR="#000000">&nbsp;</FONT><FONT COLOR="#000000"><FONT FACE="Times New Roman, serif"><FONT SIZE=3 STYLE="font-size: 13pt"><SPAN LANG="en-US">The
constant does not change its value during test execution.</SPAN></FONT></FONT></FONT><FONT COLOR="#000000">&nbsp;</FONT><FONT COLOR="#000000"><FONT FACE="Times New Roman, serif"><FONT SIZE=3 STYLE="font-size: 13pt"><SPAN LANG="en-US">The
constant is defined only once, but can be referenced multiple times
in a TTCN-3 module.</SPAN></FONT></FONT></FONT></P>
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<FONT COLOR="#000000"><FONT FACE="Times New Roman, serif"><FONT SIZE=3 STYLE="font-size: 13pt"><SPAN LANG="en-US">Optional
fields of record and set constants or constant fields can be
initialized explicitly or implicitly. For implicit initialization of
the optional fields of a constant or a constant field,
an&nbsp;</SPAN></FONT></FONT></FONT><FONT COLOR="#000000"><FONT FACE="Courier New, monospace"><FONT SIZE=3 STYLE="font-size: 13pt"><SPAN LANG="en-US"><B>optional</B></SPAN></FONT></FONT></FONT><FONT COLOR="#000000">&nbsp;</FONT><FONT COLOR="#000000"><FONT FACE="Times New Roman, serif"><FONT SIZE=3 STYLE="font-size: 13pt"><SPAN LANG="en-US">attribute
with the value&nbsp;</SPAN></FONT></FONT></FONT><FONT COLOR="#000000"><FONT FACE="Courier New, monospace"><FONT SIZE=3 STYLE="font-size: 13pt"><SPAN LANG="en-US"><B>&quot;implicit
omit&quot;</B></SPAN></FONT></FONT></FONT><FONT COLOR="#000000">&nbsp;</FONT><FONT COLOR="#000000"><FONT FACE="Times New Roman, serif"><FONT SIZE=3 STYLE="font-size: 13pt"><SPAN LANG="en-US">(see
clause Ошибка: источник перекрестной ссылки не найден) shall be
associated with it either directly or via the attribute distribution
(scoping) mechanism (see clause Ошибка: источник перекрестной ссылки
не найден).</SPAN></FONT></FONT></FONT></P>
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