* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************
- * @Id: curs_instr.3x,v 1.36 2023/10/07 21:19:07 tom Exp @
+ * @Id: curs_instr.3x,v 1.41 2023/11/19 00:20:02 tom Exp @
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-<H1 class="no-header">curs_instr 3x 2023-10-07 ncurses 6.4 Library calls</H1>
+<H1 class="no-header">curs_instr 3x 2023-11-18 ncurses 6.4 Library calls</H1>
<PRE>
<STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG> Library calls <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
- These routines return a string of characters in <EM>str</EM>, extracted starting
- at the current cursor position in the named window. Attributes are
- stripped from the characters. The four functions with <EM>n</EM> as the last
- argument return a leading substring at most <EM>n</EM> characters long
- (exclusive of the trailing NUL).
+ These routines return a string of characters in <EM>str</EM>, starting at the
+ current cursor position in the named window. Attributes are stripped
+ from the characters.
+
+ The four functions with <EM>n</EM> as the last argument return a leading
+ substring at most <EM>n</EM> characters long (exclusive of the trailing NUL).
+ Transfer stops at the end of the current line, or when <EM>n</EM> characters
+ have been stored at the location referenced by <EM>str</EM>.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
- All of the functions return <STRONG>ERR</STRONG> upon failure, or the number of
+ All of the functions return <STRONG>ERR</STRONG> upon failure, or the number of
characters actually read into the string.
- X/Open Curses defines no error conditions. In this implementation:
+ X/Open Curses defines no error conditions. This implementation returns
+ an error
- <STRONG>o</STRONG> If the <EM>win</EM> parameter is null, an error is returned,
+ <STRONG>o</STRONG> if the <EM>win</EM> parameter is null or
- <STRONG>o</STRONG> If the <EM>chstr</EM> parameter is null, an error is returned,
+ <STRONG>o</STRONG> if the <EM>chstr</EM> parameter is null.
Functions with a "mv" prefix first perform a cursor movement using
<STRONG>wmove</STRONG>, and return an error if the position is outside the window, or if
</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
- Note that all routines except <STRONG>winnstr</STRONG> may be macros.
+ All routines except <STRONG>winnstr</STRONG> may be macros.
+
+ Reading a line that overflows the array pointed to by <EM>str</EM> with <STRONG>instr</STRONG>,
+ <STRONG>mvinstr</STRONG>, <STRONG>mvwinstr</STRONG> or <STRONG>winstr</STRONG> causes undefined results. Therefore, the
+ use of <STRONG>innstr</STRONG>, <STRONG>mvinnstr</STRONG>, <STRONG>mvwinnstr</STRONG>, or <STRONG>winnstr</STRONG> is recommended.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
- <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>, <STRONG><A HREF="curs_inch.3x.html">curs_inch(3x)</A></STRONG>, <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>,
+ <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
-ncurses 6.4 2023-1
0-07 <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
+ncurses 6.4 2023-1
1-18 <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
</PRE>
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