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      1 /*
      2  *
      3  * cblas_csyrk.c
      4  * This program is a C interface to csyrk.
      5  * Written by Keita Teranishi
      6  * 4/8/1998
      7  *
      8  */
      9 
     10 #include "cblas.h"
     11 #include "cblas_f77.h"
     12 void cblas_csyrk(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 *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 
     43       if( Uplo == CblasUpper) UL='U';
     44       else if ( Uplo == CblasLower ) UL='L';
     45       else
     46       {
     47          cblas_xerbla(2, "cblas_csyrk", "Illegal Uplo setting, %d\n", Uplo);
     48          CBLAS_CallFromC = 0;
     49          RowMajorStrg = 0;
     50          return;
     51       }
     52 
     53       if( Trans == CblasTrans) TR ='T';
     54       else if ( Trans == CblasConjTrans ) TR='C';
     55       else if ( Trans == CblasNoTrans )   TR='N';
     56       else
     57       {
     58          cblas_xerbla(3, "cblas_csyrk", "Illegal Trans setting, %d\n", Trans);
     59          CBLAS_CallFromC = 0;
     60          RowMajorStrg = 0;
     61          return;
     62       }
     63 
     64 
     65       #ifdef F77_CHAR
     66          F77_UL = C2F_CHAR(&UL);
     67          F77_TR = C2F_CHAR(&TR);
     68       #endif
     69 
     70       F77_csyrk(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda,
     71                 beta, C, &F77_ldc);
     72    } else if (Order == CblasRowMajor)
     73    {
     74       RowMajorStrg = 1;
     75       if( Uplo == CblasUpper) UL='L';
     76       else if ( Uplo == CblasLower ) UL='U';
     77       else
     78       {
     79          cblas_xerbla(3, "cblas_csyrk", "Illegal Uplo setting, %d\n", Uplo);
     80          CBLAS_CallFromC = 0;
     81          RowMajorStrg = 0;
     82          return;
     83       }
     84       if( Trans == CblasTrans) TR ='N';
     85       else if ( Trans == CblasConjTrans ) TR='N';
     86       else if ( Trans == CblasNoTrans )   TR='T';
     87       else
     88       {
     89          cblas_xerbla(3, "cblas_csyrk", "Illegal Trans setting, %d\n", Trans);
     90          CBLAS_CallFromC = 0;
     91          RowMajorStrg = 0;
     92          return;
     93       }
     94 
     95       #ifdef F77_CHAR
     96          F77_UL = C2F_CHAR(&UL);
     97          F77_TR = C2F_CHAR(&TR);
     98       #endif
     99 
    100       F77_csyrk(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda,
    101                      beta, C, &F77_ldc);
    102    }
    103    else cblas_xerbla(1, "cblas_csyrk", "Illegal Order setting, %d\n", Order);
    104    CBLAS_CallFromC = 0;
    105    RowMajorStrg = 0;
    106    return;
    107 }
    108 
    109