texorpdfstring math in title latex

First, you need to include the necessary header files for the texorpdfstring function in the LaTeX package. These files are:

#include <string>
#include <sstream>

Next, you need to define a function that will convert the math expression to a string and escape any special characters. This function can be called texorpdfstring:

std::string texorpdfstring(const std::string& s) {
  std::ostringstream oss;
  oss << "\\texorpdfstring{" << s << "}{"
      << "\\textbackslash\\textbackslash}";
  return oss.str();
}

In this function, we use the ostringstream class from the <sstream> header file to construct the string. We first add the \texorpdfstring{ prefix to the output string, followed by the input string s, and then the }{\textbackslash\textbackslash} suffix.

Finally, you can use the texorpdfstring function to convert your math expression to a string and pass it as a title in LaTeX:

std::string mathExpression = "x + y = z";
std::string title = texorpdfstring(mathExpression);

// Use the 'title' string in your LaTeX document as the title

By calling the texorpdfstring function with the mathExpression string as the argument, you will get the formatted title string that can be used in LaTeX.