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      1 /*
      2  *
      3  * cblas_zherk.c
      4  * This program is a C interface to zherk.
      5  * Written by Keita Teranishi
      6  * 4/8/1998
      7  *
      8  */
      9 
     10 #include "cblas.h"
     11 #include "cblas_f77.h"
     12 void cblas_zherk(const enum CBLAS_ORDER Order, const enum CBLAS_UPLO Uplo,
     13                  const enum CBLAS_TRANSPOSE Trans, const int N, const int K,
     14                  const double alpha, const void *A, const int lda,
     15                  const double beta, void *C, const int ldc)
     16 {
     17    char UL, TR;
     18 #ifdef F77_CHAR
     19    F77_CHAR F77_TR, F77_UL;
     20 #else
     21    #define F77_TR &TR
     22    #define F77_UL &UL
     23 #endif
     24 
     25 #ifdef F77_INT
     26    F77_INT F77_N=N, F77_K=K, F77_lda=lda;
     27    F77_INT F77_ldc=ldc;
     28 #else
     29    #define F77_N N
     30    #define F77_K K
     31    #define F77_lda lda
     32    #define F77_ldc ldc
     33 #endif
     34 
     35    extern int CBLAS_CallFromC;
     36    extern int RowMajorStrg;
     37    RowMajorStrg = 0;
     38    CBLAS_CallFromC = 1;
     39 
     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_zherk", "Illegal Uplo setting, %d\n", Uplo);
     47          CBLAS_CallFromC = 0;
     48          RowMajorStrg = 0;
     49          return;
     50       }
     51 
     52       if( Trans == CblasTrans) TR ='T';
     53       else if ( Trans == CblasConjTrans ) TR='C';
     54       else if ( Trans == CblasNoTrans )   TR='N';
     55       else
     56       {
     57          cblas_xerbla(3, "cblas_zherk", "Illegal Trans setting, %d\n", Trans);
     58          CBLAS_CallFromC = 0;
     59          RowMajorStrg = 0;
     60          return;
     61       }
     62 
     63       #ifdef F77_CHAR
     64          F77_UL = C2F_CHAR(&UL);
     65          F77_TR = C2F_CHAR(&TR);
     66       #endif
     67 
     68       F77_zherk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda,
     69                      &beta, C, &F77_ldc);
     70    } else if (Order == CblasRowMajor)
     71    {
     72       RowMajorStrg = 1;
     73       if( Uplo == CblasUpper) UL='L';
     74       else if ( Uplo == CblasLower ) UL='U';
     75       else
     76       {
     77          cblas_xerbla(3, "cblas_zherk", "Illegal Uplo setting, %d\n", Uplo);
     78          CBLAS_CallFromC = 0;
     79          RowMajorStrg = 0;
     80          return;
     81       }
     82       if( Trans == CblasTrans) TR ='N';
     83       else if ( Trans == CblasConjTrans ) TR='N';
     84       else if ( Trans == CblasNoTrans )   TR='C';
     85       else
     86       {
     87          cblas_xerbla(3, "cblas_zherk", "Illegal Trans setting, %d\n", Trans);
     88          CBLAS_CallFromC = 0;
     89          RowMajorStrg = 0;
     90          return;
     91       }
     92 
     93       #ifdef F77_CHAR
     94          F77_UL = C2F_CHAR(&UL);
     95          F77_SD = C2F_CHAR(&SD);
     96       #endif
     97 
     98       F77_zherk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda,
     99                 &beta, C, &F77_ldc);
    100    }
    101    else  cblas_xerbla(1, "cblas_zherk", "Illegal Order setting, %d\n", Order);
    102    CBLAS_CallFromC = 0;
    103    RowMajorStrg = 0;
    104    return;
    105 }
    106