1 /* 2 * 3 * cblas_dtrmv.c 4 * This program is a C interface to sgemv. 5 * Written by Keita Teranishi 6 * 4/6/1998 7 * 8 */ 9 10 #include "cblas.h" 11 #include "cblas_f77.h" 12 void cblas_dtrmv(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo, 13 const enum CBLAS_TRANSPOSE TransA, const enum CBLAS_DIAG Diag, 14 const int N, const double *A, const int lda, 15 double *X, const int incX) 16 17 { 18 char TA; 19 char UL; 20 char DI; 21 #ifdef F77_CHAR 22 F77_CHAR F77_TA, F77_UL, F77_DI; 23 #else 24 #define F77_TA &TA 25 #define F77_UL &UL 26 #define F77_DI &DI 27 #endif 28 #ifdef F77_INT 29 F77_INT F77_N=N, F77_lda=lda, F77_incX=incX; 30 #else 31 #define F77_N N 32 #define F77_lda lda 33 #define F77_incX incX 34 #endif 35 extern int CBLAS_CallFromC; 36 extern int RowMajorStrg; 37 RowMajorStrg = 0; 38 39 CBLAS_CallFromC = 1; 40 if (order == CblasColMajor) 41 { 42 if (Uplo == CblasUpper) UL = 'U'; 43 else if (Uplo == CblasLower) UL = 'L'; 44 else 45 { 46 cblas_xerbla(2, "cblas_dtrmv","Illegal Uplo setting, %d\n", Uplo); 47 CBLAS_CallFromC = 0; 48 RowMajorStrg = 0; 49 return; 50 } 51 if (TransA == CblasNoTrans) TA = 'N'; 52 else if (TransA == CblasTrans) TA = 'T'; 53 else if (TransA == CblasConjTrans) TA = 'C'; 54 else 55 { 56 cblas_xerbla(3, "cblas_dtrmv","Illegal TransA setting, %d\n", TransA); 57 CBLAS_CallFromC = 0; 58 RowMajorStrg = 0; 59 return; 60 } 61 if (Diag == CblasUnit) DI = 'U'; 62 else if (Diag == CblasNonUnit) DI = 'N'; 63 else 64 { 65 cblas_xerbla(4, "cblas_dtrmv","Illegal Diag setting, %d\n", Diag); 66 CBLAS_CallFromC = 0; 67 RowMajorStrg = 0; 68 return; 69 } 70 #ifdef F77_CHAR 71 F77_UL = C2F_CHAR(&UL); 72 F77_TA = C2F_CHAR(&TA); 73 F77_DI = C2F_CHAR(&DI); 74 #endif 75 F77_dtrmv( F77_UL, F77_TA, F77_DI, &F77_N, A, &F77_lda, X, 76 &F77_incX); 77 } 78 else if (order == CblasRowMajor) 79 { 80 RowMajorStrg = 1; 81 if (Uplo == CblasUpper) UL = 'L'; 82 else if (Uplo == CblasLower) UL = 'U'; 83 else 84 { 85 cblas_xerbla(2, "cblas_dtrmv","Illegal Uplo setting, %d\n", Uplo); 86 CBLAS_CallFromC = 0; 87 RowMajorStrg = 0; 88 return; 89 } 90 91 if (TransA == CblasNoTrans) TA = 'T'; 92 else if (TransA == CblasTrans) TA = 'N'; 93 else if (TransA == CblasConjTrans) TA = 'N'; 94 else 95 { 96 cblas_xerbla(3, "cblas_dtrmv","Illegal TransA setting, %d\n", TransA); 97 CBLAS_CallFromC = 0; 98 RowMajorStrg = 0; 99 return; 100 } 101 102 if (Diag == CblasUnit) DI = 'U'; 103 else if (Diag == CblasNonUnit) DI = 'N'; 104 else 105 { 106 cblas_xerbla(4, "cblas_dtrmv","Illegal Diag setting, %d\n", Diag); 107 CBLAS_CallFromC = 0; 108 RowMajorStrg = 0; 109 return; 110 } 111 #ifdef F77_CHAR 112 F77_UL = C2F_CHAR(&UL); 113 F77_TA = C2F_CHAR(&TA); 114 F77_DI = C2F_CHAR(&DI); 115 #endif 116 F77_dtrmv( F77_UL, F77_TA, F77_DI, &F77_N, A, &F77_lda, X, 117 &F77_incX); 118 } else cblas_xerbla(1, "cblas_dtrmv", "Illegal order setting, %d\n", order); 119 CBLAS_CallFromC = 0; 120 RowMajorStrg = 0; 121 return; 122 } 123
