1 /* 2 * 3 * cblas_cher2k.c 4 * This program is a C interface to cher2k. 5 * Written by Keita Teranishi 6 * 4/8/1998 7 * 8 */ 9 10 #include "cblas.h" 11 #include "cblas_f77.h" 12 void cblas_cher2k(const enum CBLAS_ORDER Order, const enum CBLAS_UPLO Uplo, 13 const enum CBLAS_TRANSPOSE Trans, const int N, const int K, 14 const void *alpha, const void *A, const int lda, 15 const void *B, const int ldb, const float beta, 16 void *C, const int ldc) 17 { 18 char UL, TR; 19 #ifdef F77_CHAR 20 F77_CHAR F77_TR, F77_UL; 21 #else 22 #define F77_TR &TR 23 #define F77_UL &UL 24 #endif 25 26 #ifdef F77_INT 27 F77_INT F77_N=N, F77_K=K, F77_lda=lda, F77_ldb=ldb; 28 F77_INT F77_ldc=ldc; 29 #else 30 #define F77_N N 31 #define F77_K K 32 #define F77_lda lda 33 #define F77_ldb ldb 34 #define F77_ldc ldc 35 #endif 36 37 extern int CBLAS_CallFromC; 38 extern int RowMajorStrg; 39 float ALPHA[2]; 40 const float *alp=(float *)alpha; 41 42 CBLAS_CallFromC = 1; 43 RowMajorStrg = 0; 44 45 if( Order == CblasColMajor ) 46 { 47 48 if( Uplo == CblasUpper) UL='U'; 49 else if ( Uplo == CblasLower ) UL='L'; 50 else 51 { 52 cblas_xerbla(2, "cblas_cher2k", "Illegal Uplo setting, %d\n", Uplo); 53 CBLAS_CallFromC = 0; 54 RowMajorStrg = 0; 55 return; 56 } 57 58 if( Trans == CblasTrans) TR ='T'; 59 else if ( Trans == CblasConjTrans ) TR='C'; 60 else if ( Trans == CblasNoTrans ) TR='N'; 61 else 62 { 63 cblas_xerbla(3, "cblas_cher2k", "Illegal Trans setting, %d\n", Trans); 64 CBLAS_CallFromC = 0; 65 RowMajorStrg = 0; 66 return; 67 } 68 69 #ifdef F77_CHAR 70 F77_UL = C2F_CHAR(&UL); 71 F77_TR = C2F_CHAR(&TR); 72 #endif 73 74 F77_cher2k(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc); 75 } else if (Order == CblasRowMajor) 76 { 77 RowMajorStrg = 1; 78 79 if( Uplo == CblasUpper) UL='L'; 80 else if ( Uplo == CblasLower ) UL='U'; 81 else 82 { 83 cblas_xerbla(2, "cblas_cher2k", "Illegal Uplo setting, %d\n", Uplo); 84 CBLAS_CallFromC = 0; 85 RowMajorStrg = 0; 86 return; 87 } 88 if( Trans == CblasTrans) TR ='N'; 89 else if ( Trans == CblasConjTrans ) TR='N'; 90 else if ( Trans == CblasNoTrans ) TR='C'; 91 else 92 { 93 cblas_xerbla(3, "cblas_cher2k", "Illegal Trans setting, %d\n", Trans); 94 CBLAS_CallFromC = 0; 95 RowMajorStrg = 0; 96 return; 97 } 98 #ifdef F77_CHAR 99 F77_UL = C2F_CHAR(&UL); 100 F77_TR = C2F_CHAR(&TR); 101 #endif 102 103 ALPHA[0]= *alp; 104 ALPHA[1]= -alp[1]; 105 F77_cher2k(F77_UL,F77_TR, &F77_N, &F77_K, ALPHA, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc); 106 } 107 else cblas_xerbla(1, "cblas_cher2k", "Illegal Order setting, %d\n", Order); 108 CBLAS_CallFromC = 0; 109 RowMajorStrg = 0; 110 return; 111 } 112