You can replace cout by a stringstream. std::stringstream buffer; buffer << “Text” << std::endl; You can access the string using buffer.str(). To use stringstream you need to use the following libraries: #include <string> #include <iostream> #include <sstream>
The direct answer is that yes, that’s okay. A lot of people have thrown around various ideas of how to improve speed, but there seems to be quite a bit of disagreement over which is most effective. I decided to write a quick test program to get at least some idea of which techniques did … Read more
Just insert std::flush: std::cout << “Beginning computations…” << std::flush; Also note that inserting std::endl will also flush after writing a newline.
std::cout << std::fixed << std::setw(11) << std::setprecision(6) << my_double; You need to add #include <iomanip> You need stream manipulators You may “fill” the empty places with whatever char you want. Like this: std::cout << std::fixed << std::setw(11) << std::setprecision(6) << std::setfill(‘0’) << my_double;
std::cout is an instance of std::ostream. std::cout << “something” calls one of the operator<< overloads as would be done for any instance of std::ostream. It’s “special” in that it references the console, but otherwise it behaves exactly as an ofstream or an ostringstream would. EDIT: Chaining works just like it works for any other operators. … Read more
I have no clue about what the [] option does in cout This is actually not a cout option, what is happening is that “\n” is a string literal. A string literal has the type array of n const char, the [] is simply an index into an array of characters which in this case … Read more
When you are taking the address of b, you get char *. operator<< interprets that as a C string, and tries to print a character sequence instead of its address. try cout << “address of char :” << (void *) &b << endl instead. [EDIT] Like Tomek commented, a more proper cast to use in … Read more
The ISO C++ standard way to do it is to #include <iomanip> and use io manipulators like std::setw. However, that said, those io manipulators are a real pain to use even for text, and are just about unusable for formatting numbers (I assume you want your dollar amounts to line up on the decimal, have … Read more
To represent the character you can use Universal Character Names (UCNs). The character ‘ф’ has the Unicode value U+0444 and so in C++ you could write it ‘\u0444’ or ‘\U00000444’. Also if the source code encoding supports this character then you can just write it literally in your source code. // both of these assume … Read more
Put the following code before int main(): using namespace std; And you will be able to use cout. For example: #include<iostream> using namespace std; int main(){ char t=”f”; char *t1; char **t2; cout<<t; return 0; } Now take a moment and read up on what cout is and what is going on here: http://www.cplusplus.com/reference/iostream/cout/ Further, … Read more