Tag: C++
All the articles with the tag "C++".
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How to Remove a Character from a String in C++
Remove characters from a C++ string with erase, the erase-remove idiom, and remove_if. Delete by index, by value, all spaces, or every character matching a rule.
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How to Check if a String Is a Number in C++
Check whether a C++ string is a valid number using stoi with exceptions, stringstream, or from_chars. Handles negatives, decimals and trailing junk correctly.
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C++ String Length: size() vs length() vs strlen()
Get the length of a string in C++. Why size() and length() are identical, when to use strlen for char arrays, and the signed-unsigned trap that breaks loops.
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How to Write to a File in C++ (ofstream Explained)
Write text and numbers to a file in C++ with ofstream. Covers creating files, overwriting vs appending, writing a vector, formatting output and checking for errors.