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      1 /*
      2  *
      3  * cblas_ssyrk.c
      4  * This program is a C interface to ssyrk.
      5  * Written by Keita Teranishi
      6  * 4/8/1998
      7  *
      8  */
      9 
     10 #include "cblas.h"
     11 #include "cblas_f77.h"
     12 void cblas_ssyrk(const enum CBLAS_ORDER Order, const enum CBLAS_UPLO Uplo,
     13                  const enum CBLAS_TRANSPOSE Trans, const int N, const int K,
     14                  const float alpha, const float  *A, const int lda,
     15                  const float beta, float  *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_ssyrk",
     48                        "Illegal Uplo setting, %d\n", Uplo);
     49          CBLAS_CallFromC = 0;
     50          RowMajorStrg = 0;
     51          return;
     52       }
     53 
     54       if( Trans == CblasTrans) TR ='T';
     55       else if ( Trans == CblasConjTrans ) TR='C';
     56       else if ( Trans == CblasNoTrans )   TR='N';
     57       else
     58       {
     59          cblas_xerbla(3, "cblas_ssyrk",
     60                        "Illegal Trans setting, %d\n", Trans);
     61          CBLAS_CallFromC = 0;
     62          RowMajorStrg = 0;
     63          return;
     64       }
     65 
     66 
     67       #ifdef F77_CHAR
     68          F77_UL = C2F_CHAR(&UL);
     69          F77_TR = C2F_CHAR(&TR);
     70       #endif
     71 
     72       F77_ssyrk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda, &beta, C, &F77_ldc);
     73    } else if (Order == CblasRowMajor)
     74    {
     75       RowMajorStrg = 1;
     76       if( Uplo == CblasUpper) UL='L';
     77       else if ( Uplo == CblasLower ) UL='U';
     78       else
     79       {
     80          cblas_xerbla(3, "cblas_ssyrk",
     81                        "Illegal Uplo setting, %d\n", Uplo);
     82          CBLAS_CallFromC = 0;
     83          RowMajorStrg = 0;
     84          return;
     85       }
     86       if( Trans == CblasTrans) TR ='N';
     87       else if ( Trans == CblasConjTrans ) TR='N';
     88       else if ( Trans == CblasNoTrans )   TR='T';
     89       else
     90       {
     91          cblas_xerbla(3, "cblas_ssyrk",
     92                        "Illegal Trans setting, %d\n", Trans);
     93          CBLAS_CallFromC = 0;
     94          RowMajorStrg = 0;
     95          return;
     96       }
     97 
     98       #ifdef F77_CHAR
     99          F77_UL = C2F_CHAR(&UL);
    100          F77_TR = C2F_CHAR(&TR);
    101       #endif
    102 
    103       F77_ssyrk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda, &beta, C, &F77_ldc);
    104    } else  cblas_xerbla(1, "cblas_ssyrk",
    105                      "Illegal Order setting, %d\n", Order);
    106    CBLAS_CallFromC = 0;
    107    RowMajorStrg = 0;
    108    return;
    109 }
    110 
    111