<HTML>
<div><style> BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; }</style>Or should they be defined to return false?</div><div><br>
</div><div> - Ian<br>
</div> <br>
<br>
<span style="font-weight: bold;">On Wed 21/08/25 12:33 AM , "Fred J. Tydeman" tydeman@tybor.com sent:<br>
</span><blockquote style="BORDER-LEFT: #F5F5F5 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">Suppose an implementation (such as IBM S/360 hex FP) which has no support
<br>
for any of: NaN, infinity, or subnormal numbers. Should it be required to define:
<br>
FP_NAN
<br>
FP_INFINITE
<br>
FP_SUBNORMAL
<br>
Perhaps those macros should be defined "if and only if supported".
<br>
<br>
<br>
---
<br>
Fred J. Tydeman Tydeman Consulting
<br>
<a href="javascript:top.opencompose('tydeman@tybor.com','','','')">tydeman@tybor.com</a> Testing, numerics, programming
<br>
+1 (702) 608-6093 Vice-chair of PL22.11 (ANSI "C")
<br>
Sample C99+FPCE tests: <a target="_blank" href="parse.php?redirect=http%3A%2F%2Fwww.tybor.com"><span style="color: red;">http://www.tybor.com</span></a>
<br>
Savers sleep well, investors eat well, spenders work forever.
<br>
<br>
_______________________________________________
<br>
Cfp-interest mailing list
<br>
<a href="javascript:top.opencompose('Cfp-interest@oakapple.net','','','')">Cfp-interest@oakapple.net</a>
<br>
<a target="_blank" href="parse.php?redirect=http%3A%2F%2Fmailman.oakapple.net%2Fmailman%2Flistinfo%2Fcfp-interest"><span style="color: red;">http://mailman.oakapple.net/mailman/listinfo/cfp-interest</span></a>
<br>
<br>
<br>
</blockquote><BR></HTML>