1 /* 2 * 3 * cblas_dspmv.c 4 * This program is a C interface to dspmv. 5 * Written by Keita Teranishi 6 * 4/6/1998 7 * 8 */ 9 10 11 #include "cblas.h" 12 #include "cblas_f77.h" 13 void cblas_dspmv(const enum CBLAS_ORDER order, 14 const enum CBLAS_UPLO Uplo, const int N, 15 const double alpha, const double *AP, 16 const double *X, const int incX, const double beta, 17 double *Y, const int incY) 18 { 19 char UL; 20 #ifdef F77_CHAR 21 F77_CHAR F77_UL; 22 #else 23 #define F77_UL &UL 24 #endif 25 #ifdef F77_INT 26 F77_INT F77_N=N, F77_incX=incX, F77_incY=incY; 27 #else 28 #define F77_N N 29 #define F77_incX incX 30 #define F77_incY incY 31 #endif 32 extern int CBLAS_CallFromC; 33 extern int RowMajorStrg; 34 RowMajorStrg = 0; 35 36 CBLAS_CallFromC = 1; 37 if (order == CblasColMajor) 38 { 39 if (Uplo == CblasUpper) UL = 'U'; 40 else if (Uplo == CblasLower) UL = 'L'; 41 else 42 { 43 cblas_xerbla(2, "cblas_dspmv","Illegal Uplo setting, %d\n",Uplo ); 44 CBLAS_CallFromC = 0; 45 RowMajorStrg = 0; 46 return; 47 } 48 #ifdef F77_CHAR 49 F77_UL = C2F_CHAR(&UL); 50 #endif 51 F77_dspmv(F77_UL, &F77_N, &alpha, AP, X, 52 &F77_incX, &beta, Y, &F77_incY); 53 } 54 else if (order == CblasRowMajor) 55 { 56 RowMajorStrg = 1; 57 if (Uplo == CblasUpper) UL = 'L'; 58 else if (Uplo == CblasLower) UL = 'U'; 59 else 60 { 61 cblas_xerbla(2, "cblas_dspmv","Illegal Uplo setting, %d\n", Uplo); 62 CBLAS_CallFromC = 0; 63 RowMajorStrg = 0; 64 return; 65 } 66 #ifdef F77_CHAR 67 F77_UL = C2F_CHAR(&UL); 68 #endif 69 F77_dspmv(F77_UL, &F77_N, &alpha, 70 AP, X,&F77_incX, &beta, Y, &F77_incY); 71 } 72 else cblas_xerbla(1, "cblas_dspmv", "Illegal Order setting, %d\n", order); 73 CBLAS_CallFromC = 0; 74 RowMajorStrg = 0; 75 return; 76 } 77
