Oct 20, 2013 · I wonder if there is a simple way to call a function from a string. I know a simple way, using 'if' and 'else'. return i*j; return i/j; ... return i+j; int i = 4, j = 2; string function = …

Aug 26, 2013 · int main() { modify_field mf; std::string str,str1,str2; str = fetch_function_name(); //fetch_function_name() returns string modify str2 = "check"; cout << str; //prints modify str1 = …

Mar 6, 2025 · The following operations aims to improve your understanding of the strings in C++ and introduce you to some of the most commonly used operations provided by C++: Find …

Oct 30, 2023 · How to Pass a String to a Function using Call by Reference in C++. In C++, you can pass a string by reference using the ' &' symbol in the function parameter list. This allows …

Nov 2, 2023 · Steps to pass a String into a function using call by value in C++. Define a function that takes a string as a parameter. The function receives a copy of the original string, which is …

Jan 16, 2022 · One way to do it is through an unordered map, where the key is the string and the value is a function pointer. But that's only if the function signature is the same between the …

Aug 29, 2016 · You can rename your locally declared string variable to something that doesn't match the global function or vice versa. You can prefix the function call with the global …

Mar 26, 2010 · I need to call several functions based on a previous statement and I have a string database of function's names. Ex.: If my code finds a "+" sign inside a user-entered string, it …

Access Strings. You can access the characters in a string by referring to its index number inside square brackets []. This example prints the first character in myString:

The following example has a function that takes a string called fname as parameter. When the function is called, we pass along a first name, which is used inside the function to print the full …