verina-alber
commented
6 years ago CMatrix solveCMatrix(string s, string varNames[100], string varContent[100] , int& variablesNo, int& outFileSize) { string operand1 , operand2 ; //m = CMatrix(varContent[2]);
int placeOfOPerator = s.find_first_not_of("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_") ;
if (placeOfOPerator != std::string::npos)
{
if((s[placeOfOPerator])==40) // (
{
int p = s.find(")");
if (s.substr(0,placeOfOPerator)!="pow")
{
int operand2index = distance( varNames, find( varNames , varNames + 100 , s.substr(placeOfOPerator+1,p-placeOfOPerator-1) ) );
CMatrix valueOfOperand2 = CMatrix (varContent[operand2index]);
}
if(s.substr(0,placeOfOPerator)=="sin") return sin (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="cos") return cos (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="tan") return tan (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="asin") return asin (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="acos") return acos (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="atan") return atan (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="sqrt") return sqrt (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="exp") return exp (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="log") return log (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="log10") return log10 (valueOfOperand2) ;
else if(s.substr(0,placeOfOPerator)=="pow")
{
size_t const findDouble = s.find_first_of("0123456789");
if (findDouble != std::string::npos)
{
size_t const endDouble = s.find_first_not_of("0123456789", findDouble);
valueOfOperand2 = stod ( s.substr(findDouble, endDouble != std::string::npos ? endDouble-findDouble : endDouble) );
}
int operand1index = distance( varNames, find( varNames , varNames + 100 , s.substr(0,placeOfOPerator-3) ) );
CMatrix valueOfOperand1 = CMatrix (varContent[operand1index]);
return valueOfOperand1 pow ( valueOfOperand2 ) ;
}
}
else if(s[placeOfOPerator]==46) // .
{
size_t const findDouble = s.find_first_of("0123456789"); CMatrix valueOfOperand1 , valueOfOperand2 ;
{
if (findDouble != std::string::npos)
{
size_t const endDouble = s.find_first_not_of("0123456789", findDouble);
if(findDouble<placeOfOPerator)
{
valueOfOperand1 = stod ( s.substr(findDouble, endDouble != std::string::npos ? endDouble-findDouble : endDouble) );
int operand2index = distance( varNames, find( varNames , varNames + 100 , s.substr(placeOfOPerator+2,s.length()) ) );
valueOfOperand2 = CMatrix (varContent[operand2index]);
}
else
{
valueOfOperand2 = stod ( s.substr(findDouble, endDouble != std::string::npos ? endDouble-findDouble : endDouble) );
int operand1index = distance( varNames, find( varNames , varNames + 100 , s.substr(0,placeOfOPerator) ) );
valueOfOperand1 = CMatrix (varContent[operand1index]);
}
}
else
{
int operand1index = distance( varNames, find( varNames , varNames + 100 , s.substr(0,placeOfOPerator) ) );
valueOfOperand1 = CMatrix (varContent[operand1index]);
int operand2index = distance( varNames, find( varNames , varNames + 100 , s.substr(placeOfOPerator+2,s.length()) ) );
valueOfOperand2 = CMatrix (varContent[operand2index]);
}
}
if(s[placeOfOPerator]==42) return valueOfOperand1 .* valueOfOperand2 ;
else if(s[placeOfOPerator]==47) return valueOfOperand1 ./ valueOfOperand2 ;
else if(s[placeOfOPerator]==93) return valueOfOperand1 .\ valueOfOperand2 ;
else if(s[placeOfOPerator]==94) return valueOfOperand1 .^ valueOfOperand2 ;
else if(s.substr(placeOfOPerator+1,placeOfOPerator+3)=="pow(")
{
size_t const findDouble = s.find_first_of("0123456789");
if (findDouble != std::string::npos)
{
size_t const endDouble = s.find_first_not_of("0123456789", findDouble);
valueOfOperand2 = stod ( s.substr(findDouble, endDouble != std::string::npos ? endDouble-findDouble : endDouble) );
}
return valueOfOperand1 .pow (valueOfOperand2) ;
}
}
else if(s[placeOfOPerator]==43 || s[placeOfOPerator]==45 || s[placeOfOPerator]==42 || s[placeOfOPerator]==47 || s[placeOfOPerator]==92 || s[placeOfOPerator]==38 || s[placeOfOPerator]==124)
{
size_t const findDouble = s.find_first_of("0123456789"); CMatrix valueOfOperand1 , valueOfOperand2 ;
{
if (findDouble != std::string::npos)
{
size_t const endDouble = s.find_first_not_of("0123456789", findDouble);
if(findDouble<placeOfOPerator)
{
valueOfOperand1 = stod ( s.substr(findDouble, endDouble != std::string::npos ? endDouble-findDouble : endDouble) );
int operand2index = distance( varNames, find( varNames , varNames + 100 , s.substr(placeOfOPerator+1,s.length()) ) );
valueOfOperand2 = CMatrix (varContent[operand2index]);
}
else
{
valueOfOperand2 = stod ( s.substr(findDouble, endDouble != std::string::npos ? endDouble-findDouble : endDouble) );
int operand1index = distance( varNames, find( varNames , varNames + 100 , s.substr(0,placeOfOPerator) ) );
valueOfOperand1 = CMatrix (varContent[operand1index]);
}
}
else
{
int operand1index = distance( varNames, find( varNames , varNames + 100 , s.substr(0,placeOfOPerator) ) );
valueOfOperand1 = CMatrix (varContent[operand1index]);
int operand2index = distance( varNames, find( varNames , varNames + 100 , s.substr(placeOfOPerator+1,s.length()) ) );
valueOfOperand2 = CMatrix (varContent[operand2index]);
}
}
if(s[placeOfOPerator]==43) return valueOfOperand1 + valueOfOperand2 ;
else if(s[placeOfOPerator]==45) return valueOfOperand1 - valueOfOperand2 ;
else if(s[placeOfOPerator]==42) return valueOfOperand1 * valueOfOperand2 ;
else if(s[placeOfOPerator]==47) return valueOfOperand1 / valueOfOperand2 ;
//else if(s[placeOfOPerator]==92) return valueOfOperand1 \ valueOfOperand2 ;
//else if(s[placeOfOPerator]==38) return valueOfOperand1 & valueOfOperand2 ;
//else if(s[placeOfOPerator]==124) return valueOfOperand1 | valueOfOperand2 ;
}
}}
solveCMatrix is a function with aproto type as following: CMatrix solveCMatrix(string s, string varNames[100], string varContent[100] , int& variablesNo, int& outFileSize); Description: Takes a string as input and returns a matrix output, Input may contain previous predefined variables and/or normal numbers Note: this function is solved operations which is done on matrices