    /*
     *
     * cblas_zhemm.c
     * This program is a C interface to zhemm.
     * Written by Keita Teranishi
     * 4/8/1998
     *
     */

    #include "cblas.h"
    #include "cblas_f77.h"
    void cblas_zhemm(const enum CBLAS_ORDER Order, const  enum CBLAS_SIDE Side,
                     const enum CBLAS_UPLO Uplo, const int M, const int N,
                     const void *alpha, const void *A, const int lda,
                     const void *B, const int ldb, const void *beta,
                     void *C, const int ldc)
    {
       char SD, UL;
    #ifdef F77_CHAR
       F77_CHAR F77_SD, F77_UL;
    #else
       #define F77_SD &SD
       #define F77_UL &UL
    #endif

    #ifdef F77_INT
       F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_ldb=ldb;
       F77_INT F77_ldc=ldc;
    #else
       #define F77_M M
       #define F77_N N
       #define F77_lda lda
       #define F77_ldb ldb
       #define F77_ldc ldc
    #endif

       if( Order == CblasColMajor )
       {
          if( Side == CblasRight) SD='R';
          else if ( Side == CblasLeft ) SD='L';
          else
          {
             cblas_xerbla(2, "cblas_zhemm", "Illegal Side setting, %d\n", Side);
             return;
          }

          if( Uplo == CblasUpper) UL='U';
          else if ( Uplo == CblasLower ) UL='L';
          else
          {
             cblas_xerbla(3, "cblas_zhemm", "Illegal Uplo setting, %d\n", Uplo);
             return;
          }

          #ifdef F77_CHAR
             F77_UL = C2F_CHAR(&UL);
             F77_SD = C2F_CHAR(&SD);
          #endif

          F77_zhemm(F77_SD, F77_UL, &F77_M, &F77_N, alpha, A, &F77_lda,
                         B, &F77_ldb, beta, C, &F77_ldc);
       } else if (Order == CblasRowMajor)
       {
          if( Side == CblasRight) SD='L';
          else if ( Side == CblasLeft ) SD='R';
          else
          {
             cblas_xerbla(2, "cblas_zhemm", "Illegal Side setting, %d\n", Side);
             return;
          }

          if( Uplo == CblasUpper) UL='L';
          else if ( Uplo == CblasLower ) UL='U';
          else
          {
             cblas_xerbla(3, "cblas_zhemm", "Illegal Uplo setting, %d\n", Uplo);
             return;
          }

          #ifdef F77_CHAR
             F77_UL = C2F_CHAR(&UL);
             F77_SD = C2F_CHAR(&SD);
          #endif

          F77_zhemm(F77_SD, F77_UL, &F77_N, &F77_M, alpha, A,
                     &F77_lda, B, &F77_ldb, beta, C, &F77_ldc);
       }
       else  cblas_xerbla(1, "cblas_zhemm", "Illegal Order setting, %d\n", Order);
       return;
    }