Je ena od metod za pretvorbo vrednosti v niz.
Ostali so-
Z uporabo razreda stringstream
Z uporabo metode to_string().
Z uporabo boost.lexical cast
Metoda to_string() sprejme eno celoštevilsko spremenljivko ali drug podatkovni tip in jo pretvori v niz.
Pretvori številsko vrednost v niz Sintaksa:
ssis vadnica
string to_string (int val); string to_string (long val); string to_string (long long val); string to_string (unsigned val); string to_string (unsigned long val); string to_string (unsigned long long val); string to_string (float val); string to_string (double val); string to_string (long double val); Parameters : val - Numerical value. Return Value : A string object containing the representation of val as a sequence of characters.>
CPP
xvideoservicethief prenos ubuntu 14.04
// CPP program to illustrate> // std::to_string> #include> // Driver code> int> main()> {> >int> var1=16;> > >// Converting float to string> >std::string str1 = std::to_string(12.10);> >// Converting integer to string> >std::string str2 = std::to_string(9999);> > >// Converting integer to string by taking a variable> >std::string str3 = std::to_string(var1);> >// Printing the strings> >std::cout << str1 <<>'
'>;> >std::cout << str2 <<>'
'>;> >std::cout << str3 <<>'
'>;> >return> 0;> }> |
>
>Izhod
12.100000 9999 16>
Težava: Poiščite določeno števko v danem celem številu. Primer:
teorija avtomatov
Input : number = 10340, digit = 3 Output : 3 is at position 3>
Izvedba:
CPP
str v int
// CPP code to find a digit in a number> // using std::tostring> #include> // Driver code> int> main()> {> >// Converting number to string> >std::string str = std::to_string(9954);> >// Finding 5 in the number> >std::cout <<>'5 is at position '> << str.find(>'5'>) + 1;> }> |
>
arraylist razvrščen
>
Izhod:
5 is at position 3>