001: /*
002:  *
003:  * cblas_ssymm.c
004:  * This program is a C interface to ssymm.
005:  * Written by Keita Teranishi
006:  * 4/8/1998
007:  *
008:  */
009: 
010: #include "cblas.h"
011: #include "cblas_f77.h"
012: void cblas_ssymm(const enum CBLAS_ORDER Order, const enum CBLAS_SIDE Side,
013:                  const enum CBLAS_UPLO Uplo, const int M, const int N,
014:                  const float alpha, const float  *A, const int lda,
015:                  const float  *B, const int ldb, const float beta,
016:                  float  *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_ssymm",
049:                        "Illegal Side setting, %d\n", Side);
050:          CBLAS_CallFromC = 0;
051:          RowMajorStrg = 0;
052:          return;
053:       }
054: 
055:       if( Uplo == CblasUpper) UL='U';
056:       else if ( Uplo == CblasLower ) UL='L';
057:       else
058:       {
059:          cblas_xerbla(3, "cblas_ssymm",
060:                        "Illegal Uplo setting, %d\n", Uplo);
061:          CBLAS_CallFromC = 0;
062:          RowMajorStrg = 0;
063:          return;
064:       }
065: 
066:       #ifdef F77_CHAR
067:          F77_UL = C2F_CHAR(&UL);
068:          F77_SD = C2F_CHAR(&SD);
069:       #endif
070: 
071:       F77_ssymm(F77_SD, F77_UL, &F77_M, &F77_N, &alpha, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
072:    } else if (Order == CblasRowMajor)
073:    {
074:       RowMajorStrg = 1;
075:       if( Side == CblasRight) SD='L';
076:       else if ( Side == CblasLeft ) SD='R';
077:       else
078:       {
079:          cblas_xerbla(2, "cblas_ssymm",
080:                        "Illegal Side setting, %d\n", Side);
081:          CBLAS_CallFromC = 0;
082:          RowMajorStrg = 0;
083:          return;
084:       }
085: 
086:       if( Uplo == CblasUpper) UL='L';
087:       else if ( Uplo == CblasLower ) UL='U';
088:       else
089:       {
090:          cblas_xerbla(3, "cblas_ssymm",
091:                        "Illegal Uplo setting, %d\n", Uplo);
092:          CBLAS_CallFromC = 0;
093:          RowMajorStrg = 0;
094:          return;
095:       }
096: 
097:       #ifdef F77_CHAR
098:          F77_UL = C2F_CHAR(&UL);
099:          F77_SD = C2F_CHAR(&SD);
100:       #endif
101: 
102:       F77_ssymm(F77_SD, F77_UL, &F77_N, &F77_M, &alpha, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
103:    } else  cblas_xerbla(1, "cblas_ssymm",
104:                      "Illegal Order setting, %d\n", Order);
105:    CBLAS_CallFromC = 0;
106:    RowMajorStrg = 0;
107:    return;
108: }
109: