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zlag2c.f(3) LAPACK zlag2c.f(3)

NAME

zlag2c.f -

SYNOPSIS

Functions/Subroutines


subroutine zlag2c (M, N, A, LDA, SA, LDSA, INFO)
ZLAG2C converts a complex double precision matrix to a complex single precision matrix.

Function/Subroutine Documentation

subroutine zlag2c (integerM, integerN, complex*16, dimension( lda, * )A, integerLDA, complex, dimension( ldsa, * )SA, integerLDSA, integerINFO)

ZLAG2C converts a complex double precision matrix to a complex single precision matrix.

Purpose:


ZLAG2C converts a COMPLEX*16 matrix, SA, to a COMPLEX matrix, A.
RMAX is the overflow for the SINGLE PRECISION arithmetic
ZLAG2C checks that all the entries of A are between -RMAX and
RMAX. If not the convertion is aborted and a flag is raised.
This is an auxiliary routine so there is no argument checking.

Parameters:

M


M is INTEGER
The number of lines of the matrix A. M >= 0.

N


N is INTEGER
The number of columns of the matrix A. N >= 0.

A


A is COMPLEX*16 array, dimension (LDA,N)
On entry, the M-by-N coefficient matrix A.

LDA


LDA is INTEGER
The leading dimension of the array A. LDA >= max(1,M).

SA


SA is COMPLEX array, dimension (LDSA,N)
On exit, if INFO=0, the M-by-N coefficient matrix SA; if
INFO>0, the content of SA is unspecified.

LDSA


LDSA is INTEGER
The leading dimension of the array SA. LDSA >= max(1,M).

INFO


INFO is INTEGER
= 0: successful exit.
= 1: an entry of the matrix A is greater than the SINGLE
PRECISION overflow threshold, in this case, the content
of SA in exit is unspecified.

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Definition at line 108 of file zlag2c.f.

Author

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Tue Sep 25 2012 Version 3.4.2