Parse String Line By Line Parse String Splitting By Delimiter Character
Category: String Class (+ others)
Using Strings-Extracting
Get Section Of A String some_other_string = my_string.substr(8, string::npos); //Copy from character 8 to the end Get String After String my_string = my_string.substr((my_string.find("inet ") + 5), string::npos); Get String Before Character my_string = my_string.substr(0, my_string.find('/')); //Will return existing string if character not found Convert ASCII string of hex values to binary array example code […]
Using Strings-Characters
Passing String to a function that expects char * Pass Char array to a String Pass char to string Accessing characters in a string Remove Trailing Character
Using Strings-Replace and Insert
Convert String to lowercase Be aware that ::tolower() can only do a per-single-byte-character substitution, which is ill-fitting for many scripts, especially if using a multi-byte-encoding like UTF-8. Replace Character In A String Note this only works for characters, there is no simple function to replace sections of a string :-( Replace String In A String […]
Using Strings-Values
Using the stringstream class Add variable to string This is a nice easy way to add values to strings and just create strings easily. Get variable from string Converting double to string with a fixed number of decimal places Modifiers “hex” Make values hexadecimal. Persistent. Reset back to normal by using “dec”. uppercase Make values beign […]
Using Strings-Searching Strings
Does String Contain if (s1.find(s2) != std::string::npos) cout << "String found!" << endl; Do Strings Match if (my_string1.compare(my_string2) == 0) //0=strings are the same { //Strings match } Does String Start With if (CommandResult.find("abc") == 0) Find first occurrence string s1 = "hello world"; if (s1.find(' ') != string::npos) { cout << "Space found " […]
.Using Strings-Basics
Creating and using strings If you get errors? You may be defining the strings somewhere not allowed so instead try defining the strings separately at the top of the function, e.g.: Does string equal switch (MyString) ? No, you can’t use switch() on a string in c++ Passing String to a function that expects char […]
.C++ Strings General
Header Files In C++, strings are not a built-in data type, but rather a Standard Library facility. Memory Allocation For Strings Its handled automatically – you don’t have to specify a size when creating a string. The string class functions simply compute the size every time they need to allocate memory, at a runtime cost (by, for example, using […]