mirror of
https://github.com/opencv/opencv.git
synced 2024-11-30 06:10:02 +08:00
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/* dlaisnan.f -- translated by f2c (version 20061008).
|
|
You must link the resulting object file with libf2c:
|
|
on Microsoft Windows system, link with libf2c.lib;
|
|
on Linux or Unix systems, link with .../path/to/libf2c.a -lm
|
|
or, if you install libf2c.a in a standard place, with -lf2c -lm
|
|
-- in that order, at the end of the command line, as in
|
|
cc *.o -lf2c -lm
|
|
Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
|
|
|
|
http://www.netlib.org/f2c/libf2c.zip
|
|
*/
|
|
|
|
#include "clapack.h"
|
|
|
|
|
|
logical dlaisnan_(doublereal *din1, doublereal *din2)
|
|
{
|
|
/* System generated locals */
|
|
logical ret_val;
|
|
|
|
|
|
/* -- LAPACK auxiliary routine (version 3.2) -- */
|
|
/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
|
|
/* November 2006 */
|
|
|
|
/* .. Scalar Arguments .. */
|
|
/* .. */
|
|
|
|
/* Purpose */
|
|
/* ======= */
|
|
|
|
/* This routine is not for general use. It exists solely to avoid */
|
|
/* over-optimization in DISNAN. */
|
|
|
|
/* DLAISNAN checks for NaNs by comparing its two arguments for */
|
|
/* inequality. NaN is the only floating-point value where NaN != NaN */
|
|
/* returns .TRUE. To check for NaNs, pass the same variable as both */
|
|
/* arguments. */
|
|
|
|
/* A compiler must assume that the two arguments are */
|
|
/* not the same variable, and the test will not be optimized away. */
|
|
/* Interprocedural or whole-program optimization may delete this */
|
|
/* test. The ISNAN functions will be replaced by the correct */
|
|
/* Fortran 03 intrinsic once the intrinsic is widely available. */
|
|
|
|
/* Arguments */
|
|
/* ========= */
|
|
|
|
/* DIN1 (input) DOUBLE PRECISION */
|
|
/* DIN2 (input) DOUBLE PRECISION */
|
|
/* Two numbers to compare for inequality. */
|
|
|
|
/* ===================================================================== */
|
|
|
|
/* .. Executable Statements .. */
|
|
ret_val = *din1 != *din2;
|
|
return ret_val;
|
|
} /* dlaisnan_ */
|