c++ - How to add a character in a predefined string? -

i made function separates 1 of data points eliminate character.i want add r: g: b: 3 numbers. example if values 255,0,0 becomes

255 0 0 

i want

r:255 g:0 b:0 

this function made separate commas.

#include string     void rgb(string input) {     istringstream ssstring(input);      while (getline(ssstring, input, ','))         cout<< input << endl;   } 

you can iterate through array of prefixes. sufficient.

const char *prefix[3] = { "r:", "g:", "b:" }; for( int p = 0; p < 3 && getline(ssstring, input, ','); p++ ) {     cout << prefix[p] << input << endl; }