1 /* 2 * 3 * cblas_sgemv.c 4 * This program is a C interface to sgemv. 5 * Written by Keita Teranishi 6 * 4/6/1998 7 * 8 */ 9 #include "cblas.h" 10 #include "cblas_f77.h" 11 void cblas_sgemv(const enum CBLAS_ORDER order, 12 const enum CBLAS_TRANSPOSE TransA, const int M, const int N, 13 const float alpha, const float *A, const int lda, 14 const float *X, const int incX, const float beta, 15 float *Y, const int incY) 16 { 17 char TA; 18 #ifdef F77_CHAR 19 F77_CHAR F77_TA; 20 #else 21 #define F77_TA &TA 22 #endif 23 #ifdef F77_INT 24 F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY; 25 #else 26 #define F77_M M 27 #define F77_N N 28 #define F77_lda lda 29 #define F77_incX incX 30 #define F77_incY incY 31 #endif 32 33 extern int CBLAS_CallFromC; 34 extern int RowMajorStrg; 35 RowMajorStrg = 0; 36 37 CBLAS_CallFromC = 1; 38 if (order == CblasColMajor) 39 { 40 if (TransA == CblasNoTrans) TA = 'N'; 41 else if (TransA == CblasTrans) TA = 'T'; 42 else if (TransA == CblasConjTrans) TA = 'C'; 43 else 44 { 45 cblas_xerbla(2, "cblas_sgemv","Illegal TransA setting, %d\n", TransA); 46 CBLAS_CallFromC = 0; 47 RowMajorStrg = 0; 48 } 49 #ifdef F77_CHAR 50 F77_TA = C2F_CHAR(&TA); 51 #endif 52 F77_sgemv(F77_TA, &F77_M, &F77_N, &alpha, A, &F77_lda, X, &F77_incX, 53 &beta, Y, &F77_incY); 54 } 55 else if (order == CblasRowMajor) 56 { 57 RowMajorStrg = 1; 58 if (TransA == CblasNoTrans) TA = 'T'; 59 else if (TransA == CblasTrans) TA = 'N'; 60 else if (TransA == CblasConjTrans) TA = 'N'; 61 else 62 { 63 cblas_xerbla(2, "cblas_sgemv", "Illegal TransA setting, %d\n", TransA); 64 CBLAS_CallFromC = 0; 65 RowMajorStrg = 0; 66 return; 67 } 68 #ifdef F77_CHAR 69 F77_TA = C2F_CHAR(&TA); 70 #endif 71 F77_sgemv(F77_TA, &F77_N, &F77_M, &alpha, A, &F77_lda, X, 72 &F77_incX, &beta, Y, &F77_incY); 73 } 74 else cblas_xerbla(1, "cblas_sgemv", "Illegal Order setting, %d\n", order); 75 CBLAS_CallFromC = 0; 76 RowMajorStrg = 0; 77 return; 78 } 79
