<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On Mar 11, 2011, at 3:26 , Eric Norum wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">The document at <a href="http://pubs.opengroup.org/onlinepubs/009695399/basedefs/unistd.h.html">http://pubs.opengroup.org/onlinepubs/009695399/basedefs/unistd.h.html</a><span class="Apple-converted-space"> </span>implies that they really are supposed to be constants:<div><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 13px; "><br></span></div><div><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 13px; ">The following symbolic constants shall be defined for file streams:</span></div><div><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 13px; "><dl compact=""><dt>STDERR_FILENO</dt><dd>File number of <i>stderr</i>; 2.</dd><dt>STDIN_FILENO</dt><dd>File number of <i>stdin</i>; 0.</dd><dt>STDOUT_FILENO</dt><dd>File number of <i>stdout</i>; 1.</dd></dl></span><div><br></div><div>but I agree that that is rather counterintuitive.</div><div><br></div><div><br class="Apple-interchange-newline"></div></div></span></blockquote><br>To me that means the streams should either be all shared across all threads or switched such that different threads have different stdin, stdout, stderr but are still files 0, 1, and 2.</div><div><br></div><div><br></div><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px; ">Peter<br>-----------------<br>Peter Dufault<br>HD Associates, Inc. Software and System Engineering</span></font></div></span></span>
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