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OpenBLAS/lapack-netlib/TESTING/MATGEN/slatm2.c

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#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <complex.h>
#ifdef complex
#undef complex
#endif
#ifdef I
#undef I
#endif
#if defined(_WIN64)
typedef long long BLASLONG;
typedef unsigned long long BLASULONG;
#else
typedef long BLASLONG;
typedef unsigned long BLASULONG;
#endif
#ifdef LAPACK_ILP64
typedef BLASLONG blasint;
#if defined(_WIN64)
#define blasabs(x) llabs(x)
#else
#define blasabs(x) labs(x)
#endif
#else
typedef int blasint;
#define blasabs(x) abs(x)
#endif
typedef blasint integer;
typedef unsigned int uinteger;
typedef char *address;
typedef short int shortint;
typedef float real;
typedef double doublereal;
typedef struct { real r, i; } complex;
typedef struct { doublereal r, i; } doublecomplex;
#ifdef _MSC_VER
static inline _Fcomplex Cf(complex *z) {_Fcomplex zz={z->r , z->i}; return zz;}
static inline _Dcomplex Cd(doublecomplex *z) {_Dcomplex zz={z->r , z->i};return zz;}
static inline _Fcomplex * _pCf(complex *z) {return (_Fcomplex*)z;}
static inline _Dcomplex * _pCd(doublecomplex *z) {return (_Dcomplex*)z;}
#else
static inline _Complex float Cf(complex *z) {return z->r + z->i*_Complex_I;}
static inline _Complex double Cd(doublecomplex *z) {return z->r + z->i*_Complex_I;}
static inline _Complex float * _pCf(complex *z) {return (_Complex float*)z;}
static inline _Complex double * _pCd(doublecomplex *z) {return (_Complex double*)z;}
#endif
#define pCf(z) (*_pCf(z))
#define pCd(z) (*_pCd(z))
typedef char integer1;
#define TRUE_ (1)
#define FALSE_ (0)
/* Extern is for use with -E */
#ifndef Extern
#define Extern extern
#endif
/* I/O stuff */
typedef int flag;
typedef int ftnlen;
typedef int ftnint;
/*external read, write*/
typedef struct
{ flag cierr;
ftnint ciunit;
flag ciend;
char *cifmt;
ftnint cirec;
} cilist;
/*internal read, write*/
typedef struct
{ flag icierr;
char *iciunit;
flag iciend;
char *icifmt;
ftnint icirlen;
ftnint icirnum;
} icilist;
/*open*/
typedef struct
{ flag oerr;
ftnint ounit;
char *ofnm;
ftnlen ofnmlen;
char *osta;
char *oacc;
char *ofm;
ftnint orl;
char *oblnk;
} olist;
/*close*/
typedef struct
{ flag cerr;
ftnint cunit;
char *csta;
} cllist;
/*rewind, backspace, endfile*/
typedef struct
{ flag aerr;
ftnint aunit;
} alist;
/* inquire */
typedef struct
{ flag inerr;
ftnint inunit;
char *infile;
ftnlen infilen;
ftnint *inex; /*parameters in standard's order*/
ftnint *inopen;
ftnint *innum;
ftnint *innamed;
char *inname;
ftnlen innamlen;
char *inacc;
ftnlen inacclen;
char *inseq;
ftnlen inseqlen;
char *indir;
ftnlen indirlen;
char *infmt;
ftnlen infmtlen;
char *inform;
ftnint informlen;
char *inunf;
ftnlen inunflen;
ftnint *inrecl;
ftnint *innrec;
char *inblank;
ftnlen inblanklen;
} inlist;
#define VOID void
union Multitype { /* for multiple entry points */
integer1 g;
shortint h;
integer i;
/* longint j; */
real r;
doublereal d;
complex c;
doublecomplex z;
};
typedef union Multitype Multitype;
struct Vardesc { /* for Namelist */
char *name;
char *addr;
ftnlen *dims;
int type;
};
typedef struct Vardesc Vardesc;
struct Namelist {
char *name;
Vardesc **vars;
int nvars;
};
typedef struct Namelist Namelist;
#define abs(x) ((x) >= 0 ? (x) : -(x))
#define dabs(x) (fabs(x))
#define f2cmin(a,b) ((a) <= (b) ? (a) : (b))
#define f2cmax(a,b) ((a) >= (b) ? (a) : (b))
#define dmin(a,b) (f2cmin(a,b))
#define dmax(a,b) (f2cmax(a,b))
#define bit_test(a,b) ((a) >> (b) & 1)
#define bit_clear(a,b) ((a) & ~((uinteger)1 << (b)))
#define bit_set(a,b) ((a) | ((uinteger)1 << (b)))
#define abort_() { sig_die("Fortran abort routine called", 1); }
#define c_abs(z) (cabsf(Cf(z)))
#define c_cos(R,Z) { pCf(R)=ccos(Cf(Z)); }
#ifdef _MSC_VER
#define c_div(c, a, b) {Cf(c)._Val[0] = (Cf(a)._Val[0]/Cf(b)._Val[0]); Cf(c)._Val[1]=(Cf(a)._Val[1]/Cf(b)._Val[1]);}
#define z_div(c, a, b) {Cd(c)._Val[0] = (Cd(a)._Val[0]/Cd(b)._Val[0]); Cd(c)._Val[1]=(Cd(a)._Val[1]/df(b)._Val[1]);}
#else
#define c_div(c, a, b) {pCf(c) = Cf(a)/Cf(b);}
#define z_div(c, a, b) {pCd(c) = Cd(a)/Cd(b);}
#endif
#define c_exp(R, Z) {pCf(R) = cexpf(Cf(Z));}
#define c_log(R, Z) {pCf(R) = clogf(Cf(Z));}
#define c_sin(R, Z) {pCf(R) = csinf(Cf(Z));}
//#define c_sqrt(R, Z) {*(R) = csqrtf(Cf(Z));}
#define c_sqrt(R, Z) {pCf(R) = csqrtf(Cf(Z));}
#define d_abs(x) (fabs(*(x)))
#define d_acos(x) (acos(*(x)))
#define d_asin(x) (asin(*(x)))
#define d_atan(x) (atan(*(x)))
#define d_atn2(x, y) (atan2(*(x),*(y)))
#define d_cnjg(R, Z) { pCd(R) = conj(Cd(Z)); }
#define r_cnjg(R, Z) { pCf(R) = conjf(Cf(Z)); }
#define d_cos(x) (cos(*(x)))
#define d_cosh(x) (cosh(*(x)))
#define d_dim(__a, __b) ( *(__a) > *(__b) ? *(__a) - *(__b) : 0.0 )
#define d_exp(x) (exp(*(x)))
#define d_imag(z) (cimag(Cd(z)))
#define r_imag(z) (cimagf(Cf(z)))
#define d_int(__x) (*(__x)>0 ? floor(*(__x)) : -floor(- *(__x)))
#define r_int(__x) (*(__x)>0 ? floor(*(__x)) : -floor(- *(__x)))
#define d_lg10(x) ( 0.43429448190325182765 * log(*(x)) )
#define r_lg10(x) ( 0.43429448190325182765 * log(*(x)) )
#define d_log(x) (log(*(x)))
#define d_mod(x, y) (fmod(*(x), *(y)))
#define u_nint(__x) ((__x)>=0 ? floor((__x) + .5) : -floor(.5 - (__x)))
#define d_nint(x) u_nint(*(x))
#define u_sign(__a,__b) ((__b) >= 0 ? ((__a) >= 0 ? (__a) : -(__a)) : -((__a) >= 0 ? (__a) : -(__a)))
#define d_sign(a,b) u_sign(*(a),*(b))
#define r_sign(a,b) u_sign(*(a),*(b))
#define d_sin(x) (sin(*(x)))
#define d_sinh(x) (sinh(*(x)))
#define d_sqrt(x) (sqrt(*(x)))
#define d_tan(x) (tan(*(x)))
#define d_tanh(x) (tanh(*(x)))
#define i_abs(x) abs(*(x))
#define i_dnnt(x) ((integer)u_nint(*(x)))
#define i_len(s, n) (n)
#define i_nint(x) ((integer)u_nint(*(x)))
#define i_sign(a,b) ((integer)u_sign((integer)*(a),(integer)*(b)))
#define pow_dd(ap, bp) ( pow(*(ap), *(bp)))
#define pow_si(B,E) spow_ui(*(B),*(E))
#define pow_ri(B,E) spow_ui(*(B),*(E))
#define pow_di(B,E) dpow_ui(*(B),*(E))
#define pow_zi(p, a, b) {pCd(p) = zpow_ui(Cd(a), *(b));}
#define pow_ci(p, a, b) {pCf(p) = cpow_ui(Cf(a), *(b));}
#define pow_zz(R,A,B) {pCd(R) = cpow(Cd(A),*(B));}
#define s_cat(lpp, rpp, rnp, np, llp) { ftnlen i, nc, ll; char *f__rp, *lp; ll = (llp); lp = (lpp); for(i=0; i < (int)*(np); ++i) { nc = ll; if((rnp)[i] < nc) nc = (rnp)[i]; ll -= nc; f__rp = (rpp)[i]; while(--nc >= 0) *lp++ = *(f__rp)++; } while(--ll >= 0) *lp++ = ' '; }
#define s_cmp(a,b,c,d) ((integer)strncmp((a),(b),f2cmin((c),(d))))
#define s_copy(A,B,C,D) { int __i,__m; for (__i=0, __m=f2cmin((C),(D)); __i<__m && (B)[__i] != 0; ++__i) (A)[__i] = (B)[__i]; }
#define sig_die(s, kill) { exit(1); }
#define s_stop(s, n) {exit(0);}
static char junk[] = "\n@(#)LIBF77 VERSION 19990503\n";
#define z_abs(z) (cabs(Cd(z)))
#define z_exp(R, Z) {pCd(R) = cexp(Cd(Z));}
#define z_sqrt(R, Z) {pCd(R) = csqrt(Cd(Z));}
#define myexit_() break;
#define mycycle() continue;
#define myceiling(w) {ceil(w)}
#define myhuge(w) {HUGE_VAL}
//#define mymaxloc_(w,s,e,n) {if (sizeof(*(w)) == sizeof(double)) dmaxloc_((w),*(s),*(e),n); else dmaxloc_((w),*(s),*(e),n);}
#define mymaxloc(w,s,e,n) {dmaxloc_(w,*(s),*(e),n)}
/* procedure parameter types for -A and -C++ */
/* > \brief \b SLATM2 */
/* =========== DOCUMENTATION =========== */
/* Online html documentation available at */
/* http://www.netlib.org/lapack/explore-html/ */
/* Definition: */
/* =========== */
/* REAL FUNCTION SLATM2( M, N, I, J, KL, KU, IDIST, */
/* ISEED, D, IGRADE, DL, DR, IPVTNG, IWORK, SPARSE ) */
/* INTEGER I, IDIST, IGRADE, IPVTNG, J, KL, KU, M, N */
/* REAL SPARSE */
/* INTEGER ISEED( 4 ), IWORK( * ) */
/* REAL D( * ), DL( * ), DR( * ) */
/* > \par Purpose: */
/* ============= */
/* > */
/* > \verbatim */
/* > */
/* > SLATM2 returns the (I,J) entry of a random matrix of dimension */
/* > (M, N) described by the other parameters. It is called by the */
/* > SLATMR routine in order to build random test matrices. No error */
/* > checking on parameters is done, because this routine is called in */
/* > a tight loop by SLATMR which has already checked the parameters. */
/* > */
/* > Use of SLATM2 differs from SLATM3 in the order in which the random */
/* > number generator is called to fill in random matrix entries. */
/* > With SLATM2, the generator is called to fill in the pivoted matrix */
/* > columnwise. With SLATM3, the generator is called to fill in the */
/* > matrix columnwise, after which it is pivoted. Thus, SLATM3 can */
/* > be used to construct random matrices which differ only in their */
/* > order of rows and/or columns. SLATM2 is used to construct band */
/* > matrices while avoiding calling the random number generator for */
/* > entries outside the band (and therefore generating random numbers */
/* > */
/* > The matrix whose (I,J) entry is returned is constructed as */
/* > follows (this routine only computes one entry): */
/* > */
/* > If I is outside (1..M) or J is outside (1..N), return zero */
/* > (this is convenient for generating matrices in band format). */
/* > */
/* > Generate a matrix A with random entries of distribution IDIST. */
/* > */
/* > Set the diagonal to D. */
/* > */
/* > Grade the matrix, if desired, from the left (by DL) and/or */
/* > from the right (by DR or DL) as specified by IGRADE. */
/* > */
/* > Permute, if desired, the rows and/or columns as specified by */
/* > IPVTNG and IWORK. */
/* > */
/* > Band the matrix to have lower bandwidth KL and upper */
/* > bandwidth KU. */
/* > */
/* > Set random entries to zero as specified by SPARSE. */
/* > \endverbatim */
/* Arguments: */
/* ========== */
/* > \param[in] M */
/* > \verbatim */
/* > M is INTEGER */
/* > Number of rows of matrix. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] N */
/* > \verbatim */
/* > N is INTEGER */
/* > Number of columns of matrix. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] I */
/* > \verbatim */
/* > I is INTEGER */
/* > Row of entry to be returned. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] J */
/* > \verbatim */
/* > J is INTEGER */
/* > Column of entry to be returned. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] KL */
/* > \verbatim */
/* > KL is INTEGER */
/* > Lower bandwidth. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] KU */
/* > \verbatim */
/* > KU is INTEGER */
/* > Upper bandwidth. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] IDIST */
/* > \verbatim */
/* > IDIST is INTEGER */
/* > On entry, IDIST specifies the type of distribution to be */
/* > used to generate a random matrix . */
/* > 1 => UNIFORM( 0, 1 ) */
/* > 2 => UNIFORM( -1, 1 ) */
/* > 3 => NORMAL( 0, 1 ) */
/* > Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in,out] ISEED */
/* > \verbatim */
/* > ISEED is INTEGER array of dimension ( 4 ) */
/* > Seed for random number generator. */
/* > Changed on exit. */
/* > \endverbatim */
/* > */
/* > \param[in] D */
/* > \verbatim */
/* > D is REAL array of dimension ( MIN( I , J ) ) */
/* > Diagonal entries of matrix. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] IGRADE */
/* > \verbatim */
/* > IGRADE is INTEGER */
/* > Specifies grading of matrix as follows: */
/* > 0 => no grading */
/* > 1 => matrix premultiplied by diag( DL ) */
/* > 2 => matrix postmultiplied by diag( DR ) */
/* > 3 => matrix premultiplied by diag( DL ) and */
/* > postmultiplied by diag( DR ) */
/* > 4 => matrix premultiplied by diag( DL ) and */
/* > postmultiplied by inv( diag( DL ) ) */
/* > 5 => matrix premultiplied by diag( DL ) and */
/* > postmultiplied by diag( DL ) */
/* > Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] DL */
/* > \verbatim */
/* > DL is REAL array ( I or J, as appropriate ) */
/* > Left scale factors for grading matrix. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] DR */
/* > \verbatim */
/* > DR is REAL array ( I or J, as appropriate ) */
/* > Right scale factors for grading matrix. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] IPVTNG */
/* > \verbatim */
/* > IPVTNG is INTEGER */
/* > On entry specifies pivoting permutations as follows: */
/* > 0 => none. */
/* > 1 => row pivoting. */
/* > 2 => column pivoting. */
/* > 3 => full pivoting, i.e., on both sides. */
/* > Not modified. */
/* > \endverbatim */
/* > */
/* > \param[out] IWORK */
/* > \verbatim */
/* > IWORK is INTEGER array ( I or J, as appropriate ) */
/* > This array specifies the permutation used. The */
/* > row (or column) in position K was originally in */
/* > position IWORK( K ). */
/* > This differs from IWORK for SLATM3. Not modified. */
/* > \endverbatim */
/* > */
/* > \param[in] SPARSE */
/* > \verbatim */
/* > SPARSE is REAL between 0. and 1. */
/* > On entry specifies the sparsity of the matrix */
/* > if sparse matrix is to be generated. */
/* > SPARSE should lie between 0 and 1. */
/* > A uniform ( 0, 1 ) random number x is generated and */
/* > compared to SPARSE; if x is larger the matrix entry */
/* > is unchanged and if x is smaller the entry is set */
/* > to zero. Thus on the average a fraction SPARSE of the */
/* > entries will be set to zero. */
/* > Not modified. */
/* > \endverbatim */
/* Authors: */
/* ======== */
/* > \author Univ. of Tennessee */
/* > \author Univ. of California Berkeley */
/* > \author Univ. of Colorado Denver */
/* > \author NAG Ltd. */
/* > \date June 2016 */
/* > \ingroup real_matgen */
/* ===================================================================== */
real slatm2_(integer *m, integer *n, integer *i__, integer *j, integer *kl,
integer *ku, integer *idist, integer *iseed, real *d__, integer *
igrade, real *dl, real *dr, integer *ipvtng, integer *iwork, real *
sparse)
{
/* System generated locals */
real ret_val;
/* Local variables */
integer isub, jsub;
real temp;
extern real slaran_(integer *), slarnd_(integer *, integer *);
/* -- LAPACK auxiliary routine (version 3.7.0) -- */
/* -- LAPACK is a software package provided by Univ. of Tennessee, -- */
/* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */
/* June 2016 */
/* ===================================================================== */
/* ----------------------------------------------------------------------- */
/* Check for I and J in range */
/* Parameter adjustments */
--iwork;
--dr;
--dl;
--d__;
--iseed;
/* Function Body */
if (*i__ < 1 || *i__ > *m || *j < 1 || *j > *n) {
ret_val = 0.f;
return ret_val;
}
/* Check for banding */
if (*j > *i__ + *ku || *j < *i__ - *kl) {
ret_val = 0.f;
return ret_val;
}
/* Check for sparsity */
if (*sparse > 0.f) {
if (slaran_(&iseed[1]) < *sparse) {
ret_val = 0.f;
return ret_val;
}
}
/* Compute subscripts depending on IPVTNG */
if (*ipvtng == 0) {
isub = *i__;
jsub = *j;
} else if (*ipvtng == 1) {
isub = iwork[*i__];
jsub = *j;
} else if (*ipvtng == 2) {
isub = *i__;
jsub = iwork[*j];
} else if (*ipvtng == 3) {
isub = iwork[*i__];
jsub = iwork[*j];
}
/* Compute entry and grade it according to IGRADE */
if (isub == jsub) {
temp = d__[isub];
} else {
temp = slarnd_(idist, &iseed[1]);
}
if (*igrade == 1) {
temp *= dl[isub];
} else if (*igrade == 2) {
temp *= dr[jsub];
} else if (*igrade == 3) {
temp = temp * dl[isub] * dr[jsub];
} else if (*igrade == 4 && isub != jsub) {
temp = temp * dl[isub] / dl[jsub];
} else if (*igrade == 5) {
temp = temp * dl[isub] * dl[jsub];
}
ret_val = temp;
return ret_val;
/* End of SLATM2 */
} /* slatm2_ */
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