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      1 /*
      2  *
      3  * cblas_ctrmm.c
      4  * This program is a C interface to ctrmm.
      5  * Written by Keita Teranishi
      6  * 4/8/1998
      7  *
      8  */
      9 
     10 #include "cblas.h"
     11 #include "cblas_f77.h"
     12 void cblas_ctrmm(const enum CBLAS_ORDER Order, const enum CBLAS_SIDE Side,
     13                  const enum CBLAS_UPLO Uplo, const  enum CBLAS_TRANSPOSE TransA,
     14                  const enum CBLAS_DIAG Diag, const int M, const int N,
     15                  const void *alpha, const void  *A, const int lda,
     16                  void  *B, const int ldb)
     17 {
     18    char UL, TA, SD, DI;
     19 #ifdef F77_CHAR
     20    F77_CHAR F77_TA, F77_UL, F77_SD, F77_DI;
     21 #else
     22    #define F77_TA &TA
     23    #define F77_UL &UL
     24    #define F77_SD &SD
     25    #define F77_DI &DI
     26 #endif
     27 
     28 #ifdef F77_INT
     29    F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_ldb=ldb;
     30 #else
     31    #define F77_M M
     32    #define F77_N N
     33    #define F77_lda lda
     34    #define F77_ldb ldb
     35 #endif
     36 
     37    extern int CBLAS_CallFromC;
     38    extern int RowMajorStrg;
     39    RowMajorStrg = 0;
     40    CBLAS_CallFromC = 1;
     41 
     42    if( Order == CblasColMajor )
     43    {
     44       if( Side == CblasRight ) SD='R';
     45       else if ( Side == CblasLeft ) SD='L';
     46       else
     47       {
     48          cblas_xerbla(2, "cblas_ctrmm", "Illegal Side setting, %d\n", Side);
     49          CBLAS_CallFromC = 0;
     50          RowMajorStrg = 0;
     51          return;
     52       }
     53       if( Uplo == CblasUpper ) UL='U';
     54       else if ( Uplo == CblasLower ) UL='L';
     55       else
     56       {
     57          cblas_xerbla(3, "cblas_ctrmm", "Illegal Uplo setting, %d\n", Uplo);
     58          CBLAS_CallFromC = 0;
     59          RowMajorStrg = 0;
     60          return;
     61       }
     62 
     63       if( TransA == CblasTrans ) TA ='T';
     64       else if ( TransA == CblasConjTrans ) TA='C';
     65       else if ( TransA == CblasNoTrans )   TA='N';
     66       else
     67       {
     68          cblas_xerbla(4, "cblas_ctrmm", "Illegal Trans setting, %d\n", TransA);
     69          CBLAS_CallFromC = 0;
     70          RowMajorStrg = 0;
     71          return;
     72       }
     73 
     74       if( Diag == CblasUnit ) DI='U';
     75       else if ( Diag == CblasNonUnit ) DI='N';
     76       else cblas_xerbla(5, "cblas_ctrmm",
     77                        "Illegal Diag setting, %d\n", Diag);
     78 
     79       #ifdef F77_CHAR
     80          F77_UL = C2F_CHAR(&UL);
     81          F77_TA = C2F_CHAR(&TA);
     82          F77_SD = C2F_CHAR(&SD);
     83          F77_DI = C2F_CHAR(&DI);
     84       #endif
     85 
     86       F77_ctrmm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_M, &F77_N, alpha, A, &F77_lda, B, &F77_ldb);
     87    } else if (Order == CblasRowMajor)
     88    {
     89       RowMajorStrg = 1;
     90       if( Side == CblasRight ) SD='L';
     91       else if ( Side == CblasLeft ) SD='R';
     92       else
     93       {
     94          cblas_xerbla(2, "cblas_ctrmm", "Illegal Side setting, %d\n", Side);
     95          CBLAS_CallFromC = 0;
     96          RowMajorStrg = 0;
     97          return;
     98       }
     99 
    100       if( Uplo == CblasUpper ) UL='L';
    101       else if ( Uplo == CblasLower ) UL='U';
    102       else
    103       {
    104          cblas_xerbla(3, "cblas_ctrmm", "Illegal Uplo setting, %d\n", Uplo);
    105          CBLAS_CallFromC = 0;
    106          RowMajorStrg = 0;
    107          return;
    108       }
    109 
    110       if( TransA == CblasTrans ) TA ='T';
    111       else if ( TransA == CblasConjTrans ) TA='C';
    112       else if ( TransA == CblasNoTrans )   TA='N';
    113       else
    114       {
    115          cblas_xerbla(4, "cblas_ctrmm", "Illegal Trans setting, %d\n", TransA);
    116          CBLAS_CallFromC = 0;
    117          RowMajorStrg = 0;
    118          return;
    119       }
    120 
    121       if( Diag == CblasUnit ) DI='U';
    122       else if ( Diag == CblasNonUnit ) DI='N';
    123       else
    124       {
    125          cblas_xerbla(5, "cblas_ctrmm", "Illegal Diag setting, %d\n", Diag);
    126          CBLAS_CallFromC = 0;
    127          RowMajorStrg = 0;
    128          return;
    129       }
    130 
    131       #ifdef F77_CHAR
    132          F77_UL = C2F_CHAR(&UL);
    133          F77_TA = C2F_CHAR(&TA);
    134          F77_SD = C2F_CHAR(&SD);
    135          F77_DI = C2F_CHAR(&DI);
    136       #endif
    137 
    138       F77_ctrmm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_N, &F77_M, alpha, A, &F77_lda, B, &F77_ldb);
    139    }
    140    else  cblas_xerbla(1, "cblas_ctrmm", "Illegal Order setting, %d\n", Order);
    141    CBLAS_CallFromC = 0;
    142    RowMajorStrg = 0;
    143    return;
    144 }
    145