c++ – std::cin input with spaces?

c++ – std::cin input with spaces?

It doesnt fail; it just stops reading. It sees a lexical token as a string.

Use std::getline:

#include <string>
#include <iostream>

int main()
{
   std::string name, title;
   
   std::cout << Enter your name: ;
   std::getline(std::cin, name);
   
   std::cout << Enter your favourite movie: ;
   std::getline(std::cin, title);
   
   std::cout << name << s favourite movie is  << title;
}

Note that this is not the same as std::istream::getline, which works with C-style char buffers rather than std::strings.

Update

Your edited question bears little resemblance to the original.

You were trying to getline into an int, not a string or character buffer. The formatting operations of streams only work with operator<< and operator>>. Either use one of them (and tweak accordingly for multi-word input), or use getline and lexically convert to int after-the-fact.

You have to use cin.getline():

char input[100];
cin.getline(input,sizeof(input));

c++ – std::cin input with spaces?

The Standard Library provides an input function called ws, which consumes whitespace from an input stream. You can use it like this:

std::string s;
std::getline(std::cin >> std::ws, s);

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