How to Concatenate Multiple Strings in C on a Single Line?

Concatenating Multiple Strings in C on a Single Line

In C#, strings and other data types can be concatenated effortlessly on a single line. However, implementing a similar functionality in C may seem daunting due to the lack of support for multiple operators in string concatenation.

Previously, concatenating multiple strings in C required separate lines like:

string s;
s += "Hello world, " + "nice to see you, " + "or not.";

However, an alternative approach can replicate the desired behavior.

Utilizing Standard Template Library (STL)

The STL provides a powerful solution for seamless string concatenation using a stringstream object:

#include <sstream>
#include <string>

std::stringstream ss;
ss << "Hello, world, " << myInt << niceToSeeYouString;
std::string s = ss.str();

Using the << operator, strings and variables of different types can be concatenated into the stringstream, which is then converted into a string using str().

Additional Resources

For further insights on string concatenation in C , refer to:

• [Herb Sutter's Guru Of The Week article](https://herbsutter.com/2006/08/09/the-string-formatters-of-manor-farm/)

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