001: /*
002:  *
003:  * cblas_dsymm.c
004:  * This program is a C interface to dsymm.
005:  * Written by Keita Teranishi
006:  * 4/8/1998
007:  *
008:  */
009: 
010: #include "cblas.h"
011: #include "cblas_f77.h"
012: void cblas_dsymm(const enum CBLAS_ORDER Order, const enum CBLAS_SIDE Side,
013:                  const enum CBLAS_UPLO Uplo, const int M, const int N,
014:                  const double alpha, const double  *A, const int lda,
015:                  const double  *B, const int ldb, const double beta,
016:                  double  *C, const int ldc)
017: {
018:    char SD, UL;
019: #ifdef F77_CHAR
020:    F77_CHAR F77_SD, F77_UL;
021: #else
022:    #define F77_SD &SD
023:    #define F77_UL &UL
024: #endif
025: 
026: #ifdef F77_INT
027:    F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_ldb=ldb;
028:    F77_INT F77_ldc=ldc;
029: #else
030:    #define F77_M M
031:    #define F77_N N
032:    #define F77_lda lda
033:    #define F77_ldb ldb
034:    #define F77_ldc ldc
035: #endif
036: 
037:    extern int CBLAS_CallFromC;
038:    extern int RowMajorStrg;
039:    RowMajorStrg = 0;
040:    CBLAS_CallFromC = 1;
041: 
042:    if( Order == CblasColMajor )
043:    {
044:       if( Side == CblasRight) SD='R';
045:       else if ( Side == CblasLeft ) SD='L';
046:       else
047:       {
048:          cblas_xerbla(2, "cblas_dsymm","Illegal Side setting, %d\n", Side);
049:          CBLAS_CallFromC = 0;
050:          RowMajorStrg = 0;
051:          return;
052:       }
053: 
054:       if( Uplo == CblasUpper) UL='U';
055:       else if ( Uplo == CblasLower ) UL='L';
056:       else
057:       {
058:          cblas_xerbla(3, "cblas_dsymm","Illegal Uplo setting, %d\n", Uplo);
059:          CBLAS_CallFromC = 0;
060:          RowMajorStrg = 0;
061:          return;
062:       }
063: 
064:       #ifdef F77_CHAR
065:          F77_UL = C2F_CHAR(&UL);
066:          F77_SD = C2F_CHAR(&SD);
067:       #endif
068: 
069:       F77_dsymm(F77_SD, F77_UL, &F77_M, &F77_N, &alpha, A, &F77_lda,
070:                       B, &F77_ldb, &beta, C, &F77_ldc);
071:    } else if (Order == CblasRowMajor)
072:    {
073:       RowMajorStrg = 1;
074:       if( Side == CblasRight) SD='L';
075:       else if ( Side == CblasLeft ) SD='R';
076:       else
077:       {
078:          cblas_xerbla(2, "cblas_dsymm","Illegal Side setting, %d\n", Side);
079:          CBLAS_CallFromC = 0;
080:          RowMajorStrg = 0;
081:          return;
082:       }
083: 
084:       if( Uplo == CblasUpper) UL='L';
085:       else if ( Uplo == CblasLower ) UL='U';
086:       else
087:       {
088:          cblas_xerbla(3, "cblas_dsymm","Illegal Uplo setting, %d\n", Uplo);
089:          CBLAS_CallFromC = 0;
090:          RowMajorStrg = 0;
091:          return;
092:       }
093: 
094:       #ifdef F77_CHAR
095:          F77_UL = C2F_CHAR(&UL);
096:          F77_SD = C2F_CHAR(&SD);
097:       #endif
098: 
099:       F77_dsymm(F77_SD, F77_UL, &F77_N, &F77_M, &alpha, A, &F77_lda, B,
100:                  &F77_ldb, &beta, C, &F77_ldc);
101:    }
102:    else cblas_xerbla(1, "cblas_dsymm","Illegal Order setting, %d\n", Order);
103:    CBLAS_CallFromC = 0;
104:    RowMajorStrg = 0;
105:    return;
106: }
107: