/* * cblas_ctpsv.c * The program is a C interface to ctpsv. * * Keita Teranishi 3/23/98 * */ #include "cblas.h" #include "cblas_f77.h" void cblas_ctpsv(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo, const CBLAS_TRANSPOSE TransA, const CBLAS_DIAG Diag, const CBLAS_INT N, const void *Ap, void *X, const CBLAS_INT incX) { char TA; char UL; char DI; #ifdef F77_CHAR F77_CHAR F77_TA, F77_UL, F77_DI; #else #define F77_TA &TA #define F77_UL &UL #define F77_DI &DI #endif #ifdef F77_INT F77_INT F77_N=N, F77_incX=incX; #else #define F77_N N #define F77_incX incX #endif CBLAS_INT n, i=0, tincX; float *st=0, *x=(float*)X; extern int CBLAS_CallFromC; extern int RowMajorStrg; RowMajorStrg = 0; CBLAS_CallFromC = 1; if (layout == CblasColMajor) { if (Uplo == CblasUpper) UL = 'U'; else if (Uplo == CblasLower) UL = 'L'; else { cblas_xerbla(2, "cblas_ctpsv","Illegal Uplo setting, %d\n", Uplo); CBLAS_CallFromC = 0; RowMajorStrg = 0; return; } if (TransA == CblasNoTrans) TA = 'N'; else if (TransA == CblasTrans) TA = 'T'; else if (TransA == CblasConjTrans) TA = 'C'; else { cblas_xerbla(3, "cblas_ctpsv","Illegal TransA setting, %d\n", TransA); CBLAS_CallFromC = 0; RowMajorStrg = 0; return; } if (Diag == CblasUnit) DI = 'U'; else if (Diag == CblasNonUnit) DI = 'N'; else { cblas_xerbla(4, "cblas_ctpsv","Illegal Diag setting, %d\n", Diag); CBLAS_CallFromC = 0; RowMajorStrg = 0; return; } #ifdef F77_CHAR F77_UL = C2F_CHAR(&UL); F77_TA = C2F_CHAR(&TA); F77_DI = C2F_CHAR(&DI); #endif F77_ctpsv( F77_UL, F77_TA, F77_DI, &F77_N, Ap, X, &F77_incX); } else if (layout == CblasRowMajor) { RowMajorStrg = 1; if (Uplo == CblasUpper) UL = 'L'; else if (Uplo == CblasLower) UL = 'U'; else { cblas_xerbla(2, "cblas_ctpsv","Illegal Uplo setting, %d\n", Uplo); CBLAS_CallFromC = 0; RowMajorStrg = 0; return; } if (TransA == CblasNoTrans) TA = 'T'; else if (TransA == CblasTrans) TA = 'N'; else if (TransA == CblasConjTrans) { TA = 'N'; if ( N > 0) { if ( incX > 0 ) tincX = incX; else tincX = -incX; n = N*2*(tincX); x++; st=x+n; i = tincX << 1; do { *x = -(*x); x+=i; } while (x != st); x -= n; } } else { cblas_xerbla(3, "cblas_ctpsv","Illegal TransA setting, %d\n", TransA); CBLAS_CallFromC = 0; RowMajorStrg = 0; return; } if (Diag == CblasUnit) DI = 'U'; else if (Diag == CblasNonUnit) DI = 'N'; else { cblas_xerbla(4, "cblas_ctpsv","Illegal Diag setting, %d\n", Diag); CBLAS_CallFromC = 0; RowMajorStrg = 0; return; } #ifdef F77_CHAR F77_UL = C2F_CHAR(&UL); F77_TA = C2F_CHAR(&TA); F77_DI = C2F_CHAR(&DI); #endif F77_ctpsv( F77_UL, F77_TA, F77_DI, &F77_N, Ap, X,&F77_incX); if (TransA == CblasConjTrans) { if (N > 0) { do { *x = -(*x); x += i; } while (x != st); } } } else cblas_xerbla(1, "cblas_ctpsv", "Illegal layout setting, %d\n", layout); CBLAS_CallFromC = 0; RowMajorStrg = 0; return; }