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From: szegedy@or.uni-bonn.de To: gcc-gnats@gcc.gnu.org Subject: c/10844: Wrong computation on nan initialized vectors. Date: Sun, 18 May 2003 17:26:00 -0000 [thread overview] Message-ID: <20030518172058.20667.qmail@sources.redhat.com> (raw) >Number: 10844 >Category: c >Synopsis: Wrong computation on nan initialized vectors. >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: wrong-code >Submitter-Id: net >Arrival-Date: Sun May 18 17:26:00 UTC 2003 >Closed-Date: >Last-Modified: >Originator: Christian Szegedy >Release: gcc (GCC) 3.2.2 >Organization: >Environment: gentoo Linux >Description: The following program outputs nan istead of 0: #include <math.h> int main() { int n = 10; int i; double *w= (double*)malloc(sizeof(double)*n); double x; for( i=0 ; i<n ; i++ ) { w[i] = nan(""); } w[0] = .0; w[0] += .0; printf("%lg\n",w[0]); return 0; } >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
next reply other threads:[~2003-05-18 17:26 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-05-18 17:26 szegedy [this message] 2003-05-18 17:49 ehrhardt 2003-05-19 10:17 Christian Szegedy 2003-05-19 12:01 ehrhardt 2003-05-19 15:06 Christian Szegedy
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