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| <helpdocument version="1.0"> |
| <meta> |
| <topic id="textsbasicshared03020301xml" indexer="include" status="PUBLISH"> |
| <title id="tit" xml-lang="en-US">Eof Function [Runtime]</title> |
| <filename>/text/sbasic/shared/03020301.xhp</filename> |
| </topic> |
| </meta> |
| <body> |
| <section id="eof"> |
| <bookmark xml-lang="en-US" branch="index" id="bm_id3154598"> |
| <bookmark_value>Eof function</bookmark_value> |
| </bookmark> |
| <paragraph role="heading" id="hd_id3154598" xml-lang="en-US" level="1" l10n="U"><link href="text/sbasic/shared/03020301.xhp" name="Eof Function [Runtime]">Eof Function [Runtime]</link></paragraph> |
| <paragraph role="paragraph" id="par_id3147182" xml-lang="en-US" l10n="U">Determines if the file pointer has reached the end of a file.</paragraph> |
| </section> |
| <paragraph role="heading" id="hd_id3149119" xml-lang="en-US" level="2" l10n="U">Syntax:</paragraph> |
| <paragraph role="code" id="par_id3147399" xml-lang="en-US" l10n="U">Eof (intexpression As Integer)</paragraph> |
| <paragraph role="heading" id="hd_id3153539" xml-lang="en-US" level="2" l10n="U">Return value:</paragraph> |
| <paragraph role="paragraph" id="par_id3156027" xml-lang="en-US" l10n="U">Bool</paragraph> |
| <paragraph role="heading" id="hd_id3152924" xml-lang="en-US" level="2" l10n="U">Parameters:</paragraph> |
| <paragraph role="paragraph" id="par_id3153990" xml-lang="en-US" l10n="U"><emph>Intexpression:</emph> Any integer expression that evaluates to the number of an open file.</paragraph> |
| <paragraph role="paragraph" id="par_id3153527" xml-lang="en-US" l10n="U">Use EOF to avoid errors when you attempt to get input past the end of a file. When you use the Input or Get statement to read from a file, the file pointer is advanced by the number of bytes read. When the end of a file is reached, EOF returns the value "True" (-1).</paragraph> |
| <embed href="text/sbasic/shared/00000003.xhp#errorcode"/> |
| <embed href="text/sbasic/shared/00000003.xhp#err5"/> |
| <embed href="text/sbasic/shared/00000003.xhp#err52"/> |
| <paragraph role="heading" id="hd_id3154046" xml-lang="en-US" level="2" l10n="U">Example:</paragraph> |
| <paragraph role="code" id="par_id3143270" xml-lang="en-US" l10n="U">Sub ExampleWorkWithAFile</paragraph> |
| <paragraph role="code" id="par_id3150670" xml-lang="en-US" l10n="U">Dim iNumber As Integer</paragraph> |
| <paragraph role="code" id="par_id3154143" xml-lang="en-US" l10n="U">Dim sLine As String</paragraph> |
| <paragraph role="code" id="par_id3148943" xml-lang="en-US" l10n="U">Dim aFile As String</paragraph> |
| <paragraph role="code" id="par_id3153897" xml-lang="en-US" l10n="U">Dim sMsg as String</paragraph> |
| <paragraph role="code" id="par_id3156344" xml-lang="en-US" l10n="U">aFile = "c:\data.txt"</paragraph> |
| <paragraph role="code" id="par_id3148663" xml-lang="en-US" l10n="U">iNumber = Freefile</paragraph> |
| <paragraph role="code" id="par_id3153379" xml-lang="en-US" l10n="U">Open aFile For Output As #iNumber</paragraph> |
| <paragraph role="code" id="par_id3153360" xml-lang="en-US" l10n="U">Print #iNumber, "First line of text"</paragraph> |
| <paragraph role="code" id="par_id3148797" xml-lang="en-US" l10n="U">Print #iNumber, "Another line of text"</paragraph> |
| <paragraph role="code" id="par_id3154684" xml-lang="en-US" l10n="U">Close #iNumber</paragraph> |
| <paragraph role="code" id="par_id3153104" xml-lang="en-US" l10n="U">iNumber = Freefile</paragraph> |
| <paragraph role="code" id="par_id3144761" xml-lang="en-US" l10n="U">Open aFile For Input As iNumber</paragraph> |
| <paragraph role="code" id="par_id3153193" xml-lang="en-US" l10n="U">While not eof(iNumber)</paragraph> |
| <paragraph role="code" id="par_id3158408" xml-lang="en-US" l10n="U">Line Input #iNumber, sLine</paragraph> |
| <paragraph role="code" id="par_id3149203" xml-lang="en-US" l10n="U">If sLine <>"" then</paragraph> |
| <paragraph role="code" id="par_id3153770" xml-lang="en-US" l10n="U">sMsg = sMsg & sLine & chr(13)</paragraph> |
| <paragraph role="code" id="par_id3153367" xml-lang="en-US" l10n="U">end if</paragraph> |
| <paragraph role="code" id="par_id3147318" xml-lang="en-US" l10n="U">wend</paragraph> |
| <paragraph role="code" id="par_id3152939" xml-lang="en-US" l10n="U">Close #iNumber</paragraph> |
| <paragraph role="code" id="par_id3153726" xml-lang="en-US" l10n="U">Msgbox sMsg</paragraph> |
| <paragraph role="code" id="par_id3153092" xml-lang="en-US" l10n="U">End Sub</paragraph> |
| </body> |
| </helpdocument> |
