001: /*
002:  *
003:  * cblas_strmm.c
004:  * This program is a C interface to strmm.
005:  * Written by Keita Teranishi
006:  * 4/6/1998
007:  *
008:  */
009: 
010: #include "cblas.h"
011: #include "cblas_f77.h"
012: void cblas_strmm(const enum CBLAS_ORDER Order, const enum CBLAS_SIDE Side,
013:                  const enum CBLAS_UPLO Uplo, const  enum CBLAS_TRANSPOSE TransA,
014:                  const enum CBLAS_DIAG Diag, const int M, const int N,
015:                  const float alpha, const float *A, const int lda,
016:                  float *B, const int ldb)
017: {
018:    char UL, TA, SD, DI;
019: #ifdef F77_CHAR
020:    F77_CHAR F77_TA, F77_UL, F77_SD, F77_DI;
021: #else
022:    #define F77_TA &TA
023:    #define F77_UL &UL
024:    #define F77_SD &SD
025:    #define F77_DI &DI
026: #endif
027: 
028: #ifdef F77_INT
029:    F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_ldb=ldb;
030: #else
031:    #define F77_M M
032:    #define F77_N N
033:    #define F77_lda lda
034:    #define F77_ldb ldb
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_strmm","Illegal Side setting, %d\n", Side);
049:          CBLAS_CallFromC = 0;
050:          RowMajorStrg = 0;
051:          return;
052:       }
053:       if( Uplo == CblasUpper) UL='U';
054:       else if ( Uplo == CblasLower ) UL='L';
055:       else
056:       {
057:          cblas_xerbla(3, "cblas_strmm","Illegal Uplo setting, %d\n", Uplo);
058:          CBLAS_CallFromC = 0;
059:          RowMajorStrg = 0;
060:          return;
061:       }
062: 
063:       if( TransA == CblasTrans) TA ='T';
064:       else if ( TransA == CblasConjTrans ) TA='C';
065:       else if ( TransA == CblasNoTrans )   TA='N';
066:       else
067:       {
068:          cblas_xerbla(4, "cblas_strmm","Illegal Trans setting, %d\n", TransA);
069:          CBLAS_CallFromC = 0;
070:          RowMajorStrg = 0;
071:          return;
072:       }
073: 
074:       if( Diag == CblasUnit ) DI='U';
075:       else if ( Diag == CblasNonUnit ) DI='N';
076:       else
077:       {
078:          cblas_xerbla(5, "cblas_strmm", "Illegal Diag setting, %d\n", Diag);
079:          CBLAS_CallFromC = 0;
080:          RowMajorStrg = 0;
081:          return;
082:       }
083: 
084:       #ifdef F77_CHAR
085:          F77_UL = C2F_CHAR(&UL);
086:          F77_TA = C2F_CHAR(&TA);
087:          F77_SD = C2F_CHAR(&SD);
088:          F77_DI = C2F_CHAR(&DI);
089:       #endif
090: 
091:       F77_strmm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_M, &F77_N, &alpha, A, &F77_lda, B, &F77_ldb);
092:    } else if (Order == CblasRowMajor)
093:    {
094:       RowMajorStrg = 1;
095:       if( Side == CblasRight) SD='L';
096:       else if ( Side == CblasLeft ) SD='R';
097:       else
098:       {
099:          cblas_xerbla(2, "cblas_strmm","Illegal Side setting, %d\n", Side);
100:          CBLAS_CallFromC = 0;
101:          RowMajorStrg = 0;
102:          return;
103:       }
104: 
105:       if( Uplo == CblasUpper) UL='L';
106:       else if ( Uplo == CblasLower ) UL='U';
107:       else
108:       {
109:          cblas_xerbla(3, "cblas_strmm", "Illegal Uplo setting, %d\n", Uplo);
110:          CBLAS_CallFromC = 0;
111:          RowMajorStrg = 0;
112:          return;
113:       }
114: 
115:       if( TransA == CblasTrans) TA ='T';
116:       else if ( TransA == CblasConjTrans ) TA='C';
117:       else if ( TransA == CblasNoTrans )   TA='N';
118:       else
119:       {
120:          cblas_xerbla(4, "cblas_strmm", "Illegal Trans setting, %d\n", TransA);
121:          CBLAS_CallFromC = 0;
122:          RowMajorStrg = 0;
123:          return;
124:       }
125: 
126:       if( Diag == CblasUnit ) DI='U';
127:       else if ( Diag == CblasNonUnit ) DI='N';
128:       else
129:       {
130:          cblas_xerbla(5, "cblas_strmm","Illegal Diag setting, %d\n", Diag);
131:          CBLAS_CallFromC = 0;
132:          RowMajorStrg = 0;
133:          return;
134:       }
135: #ifdef F77_CHAR
136:     F77_UL = C2F_CHAR(&UL);
137:     F77_TA = C2F_CHAR(&TA);
138:     F77_SD = C2F_CHAR(&SD);
139:     F77_DI = C2F_CHAR(&DI);
140: #endif
141:       F77_strmm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_N, &F77_M, &alpha, A,
142:       &F77_lda, B, &F77_ldb);
143:    }
144:    else  cblas_xerbla(1, "cblas_strmm", "Illegal Order setting, %d\n", Order);
145:    CBLAS_CallFromC = 0;
146:    RowMajorStrg = 0;
147:    return;
148: }
149: