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#include <algorithm>
#include <cctype>
#include <cmath>
#include BLAS_HEADER
#include <interfaces/blas/F77/xerbla.h>
#include <ulmblas/level3/trlmm.h>
#include <ulmblas/level3/trumm.h>
#include <ulmblas/auxiliary/printmatrix.h>
extern "C" {
void
F77BLAS(dtrmm)(const char *side_,
const char *upLo_,
const char *transA_,
const char *diag_,
const int *m_,
const int *n_,
const double *alpha_,
const double *A,
const int *ldA_,
double *B,
const int *ldB_)
{
//
// Dereference scalar parameters
//
bool left = (toupper(*side_) == 'L');
bool lower = (toupper(*upLo_) == 'L');
bool transA = (toupper(*transA_) == 'T' || toupper(*transA_) == 'C');
bool unitDiag = (toupper(*diag_) == 'U');
int m = *m_;
int n = *n_;
double alpha = *alpha_;
int ldA = *ldA_;
int ldB = *ldB_;
//
// Set numRowsA and numRowsB as the number of rows of A and B
//
int numRowsA = (left) ? m : n;
//
// Test the input parameters
//
int info = 0;
if (toupper(*side_)!='L' && toupper(*side_)!='R') {
info = 1;
} else if (toupper(*upLo_)!='L' && toupper(*upLo_)!='U') {
info = 2;
} else if (toupper(*transA_)!='N' && toupper(*transA_)!='T'
&& toupper(*transA_)!='C' && toupper(*transA_)!='R')
{
info = 3;
} else if (toupper(*diag_)!='U' && toupper(*diag_)!='N') {
info = 4;
} else if (m<0) {
info = 5;
} else if (n<0) {
info = 6;
} else if (ldA<std::max(1,numRowsA)) {
info = 9;
} else if (ldB<std::max(1,m)) {
info = 11;
}
if (info!=0) {
F77BLAS(xerbla)("DTRMM ", &info);
}
//
// Start the operations.
//
if (left) {
if (lower) {
if (!transA) {
ulmBLAS::trlmm(m, n, alpha, unitDiag, A, 1, ldA, B, 1, ldB);
} else {
ulmBLAS::trumm(m, n, alpha, unitDiag, A, ldA, 1, B, 1, ldB);
}
} else {
if (!transA) {
ulmBLAS::trumm(m, n, alpha, unitDiag, A, 1, ldA, B, 1, ldB);
} else {
ulmBLAS::trlmm(m, n, alpha, unitDiag, A, ldA, 1, B, 1, ldB);
}
}
} else {
if (lower) {
if (!transA) {
ulmBLAS::trumm(n, m, alpha, unitDiag, A, ldA, 1, B, ldB, 1);
} else {
ulmBLAS::trlmm(n, m, alpha, unitDiag, A, 1, ldA, B, ldB, 1);
}
} else {
if (!transA) {
ulmBLAS::trlmm(n, m, alpha, unitDiag, A, ldA, 1, B, ldB, 1);
} else {
ulmBLAS::trumm(n, m, alpha, unitDiag, A, 1, ldA, B, ldB, 1);
}
}
}
}
} // extern "C"
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