.TH "ieeeck" 3 "Wed Feb 7 2024 11:30:40" "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
ieeeck \- ieeeck: verify inf and NaN are safe
.SH SYNOPSIS
.br
.PP
.SS "Functions"

.in +1c
.ti -1c
.RI "integer function \fBieeeck\fP (ispec, zero, one)"
.br
.RI "\fBIEEECK\fP "
.in -1c
.SH "Detailed Description"
.PP 

.SH "Function Documentation"
.PP 
.SS "integer function ieeeck (integer ispec, real zero, real one)"

.PP
\fBIEEECK\fP  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 IEEECK is called from the ILAENV to verify that Infinity and
 possibly NaN arithmetic is safe (i\&.e\&. will not trap)\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIISPEC\fP 
.PP
.nf
          ISPEC is INTEGER
          Specifies whether to test just for infinity arithmetic
          or whether to test for infinity and NaN arithmetic\&.
          = 0: Verify infinity arithmetic only\&.
          = 1: Verify infinity and NaN arithmetic\&.
.fi
.PP
.br
\fIZERO\fP 
.PP
.nf
          ZERO is REAL
          Must contain the value 0\&.0
          This is passed to prevent the compiler from optimizing
          away this code\&.
.fi
.PP
.br
\fIONE\fP 
.PP
.nf
          ONE is REAL
          Must contain the value 1\&.0
          This is passed to prevent the compiler from optimizing
          away this code\&.

  RETURN VALUE:  INTEGER
          = 0:  Arithmetic failed to produce the correct answers
          = 1:  Arithmetic produced the correct answers
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
.PP
Univ\&. of California Berkeley 
.PP
Univ\&. of Colorado Denver 
.PP
NAG Ltd\&. 
.RE
.PP

.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.