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JD-Salinger · May 4th, 2008, 12:26 AM

in line 26
assert(maxIdFun==sizeof FunctionArray/sizeof FunctionArray[0])
what is the size of functionArray and size of functionArray[0] i cant understand that... and how come it would equal to maxIdFun... and the point of dividing it

 c++ Syntax (Toggle Plain Text) 
 
const int maxIdFun=14;
 
FunctionEntry FunctionArray [] =
{
    log,  "log",
    log10,"log10",
    exp,  "exp",
    sqrt, "sqrt",
    sin,  "sin",
    cos,  "cos",
    tan,  "tan",
    CoTan,"cotan",
    sinh, "sinh",
    cosh, "cosh",
    tanh, "tanh",
    asin, "asin",
    acos, "acos",
    atan, "atan",
};
 
FunctionTable::FunctionTable(SymbolTable& symTab,FunctionEntry* funArr)
    :_size(0)
{
 
    assert(maxIdFun==sizeof FunctionArray/sizeof FunctionArray[0])
 
    for(int i=0; i<maxIdFun; ++i)
    {
        int len=strlen(funArr[i].strFun);
        if(len==0)
            break;
        _pFun[i]=funArr[i].pFun;
        cout<< funArr[i].strFun<<endl;
        int j=symTab.ForceAdd(funArr[i].strFun,len);
        assert(i==j);
        ++_size;
    }
}
const int maxIdFun=14;

FunctionEntry FunctionArray [] =
{
    log,  "log",
    log10,"log10",
    exp,  "exp",
    sqrt, "sqrt",
    sin,  "sin",
    cos,  "cos",
    tan,  "tan",
    CoTan,"cotan",
    sinh, "sinh",
    cosh, "cosh",
    tanh, "tanh",
    asin, "asin",
    acos, "acos",
    atan, "atan",
};

FunctionTable::FunctionTable(SymbolTable& symTab,FunctionEntry* funArr)
    :_size(0)
{
    
    assert(maxIdFun==sizeof FunctionArray/sizeof FunctionArray[0])
    
    for(int i=0; i<maxIdFun; ++i)
    {
        int len=strlen(funArr[i].strFun);
        if(len==0)
            break;
        _pFun[i]=funArr[i].pFun;
        cout<< funArr[i].strFun<<endl;
        int j=symTab.ForceAdd(funArr[i].strFun,len);
        assert(i==j);
        ++_size;
    }
}

thanks a lot

May 4th, 2008, 12:26 AM	#1
JD-Salinger Unknown Join Date: Apr 2008 Location: unknown Posts: 87 Rep Power: 1	sizeof question in line 26 `assert(maxIdFun==sizeof FunctionArray/sizeof FunctionArray[0])` what is the size of functionArray and size of functionArray[0] i cant understand that... and how come it would equal to maxIdFun... and the point of dividing it c++ Syntax (Toggle Plain Text) const int maxIdFun=14; FunctionEntry FunctionArray [] = { log, "log", log10,"log10", exp, "exp", sqrt, "sqrt", sin, "sin", cos, "cos", tan, "tan", CoTan,"cotan", sinh, "sinh", cosh, "cosh", tanh, "tanh", asin, "asin", acos, "acos", atan, "atan", }; FunctionTable::FunctionTable(SymbolTable& symTab,FunctionEntry* funArr) :_size(0) { assert(maxIdFun==sizeof FunctionArray/sizeof FunctionArray[0]) for(int i=0; i<maxIdFun; ++i) { int len=strlen(funArr[i].strFun); if(len==0) break; _pFun[i]=funArr[i].pFun; cout<< funArr[i].strFun<<endl; int j=symTab.ForceAdd(funArr[i].strFun,len); assert(i==j); ++_size; } } const int maxIdFun=14; FunctionEntry FunctionArray [] = { log, "log", log10,"log10", exp, "exp", sqrt, "sqrt", sin, "sin", cos, "cos", tan, "tan", CoTan,"cotan", sinh, "sinh", cosh, "cosh", tanh, "tanh", asin, "asin", acos, "acos", atan, "atan", }; FunctionTable::FunctionTable(SymbolTable& symTab,FunctionEntry* funArr) :_size(0) { assert(maxIdFun==sizeof FunctionArray/sizeof FunctionArray[0]) for(int i=0; i<maxIdFun; ++i) { int len=strlen(funArr[i].strFun); if(len==0) break; _pFun[i]=funArr[i].pFun; cout<< funArr[i].strFun<<endl; int j=symTab.ForceAdd(funArr[i].strFun,len); assert(i==j); ++_size; } } thanks a lot __________________ ------------------------------------------------------------------------- I thought what I'd Do was, I'd pretend to be one of those deaf mutes ------------------------------------------------------------------------