Inside the loop increment the counter variable with 1 i.e. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. i.e. Don't forget to #include <string>. We can also use strlen() function or sizeof() operator which is builtin in C. Comments Off on C Program To Find Length Of A String | 4 Simple Ways. This programming language has a length function to find the string characters. 57 Use strlen to find the length of (number of characters in) a string const char *ptr = "stackoverflow"; size_t length = strlen (ptr); Another minor point, note that ptr is a string literal (a pointer to const memory which cannot be modified). If you use fgets () function as shown below then you will get result = (actual length + 1). However, in this example, we will find the length of a string manually. The strlen function returns the length of the string, which is stored in the variable len. To get the length of a C-string string, strlen() function is used. The function stringlength() returns the i value to main() function.The variable i represents the length of the string. The strlen () function calculates the length of a given string. Learn C practically The length of the string is then printed to the screen using the printf function. Suitable examples and sample programs have also been added so that you can understand the whole thing very clearly. The size() and length() functions are just synonyms and they both do exactly same thing. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. if ptr length is an argument of a function it's reasonable to use pointers as a strings. 2)The function stringlength() has the code to find the length of the string. C Program to Find the Length of a String There are two approaches to finding the length of a string in C: using the strlen function, which is part of the string.h library, and use a loop to iterate through the string and count the number of characters. Sort Elements in Lexicographical Order (Dictionary Order), Count the Number of Vowels, Consonants and so on, String Manipulations In C Programming Using Library Functions. We can see that the length of this string is 8 since it has 8 characters. Try Programiz PRO: The methods used in this distinct piece are as follows: A string is nothing but an array of characters. 2)The recursive function checks the character at s[i] is null or not. Here, using a for loop, we have iterated over characters of the string from i = 0 to until '\0' (null character) is encountered. We will not use standard function strlen() to calculate the length of the string. Using string::length: The method string::length returns the length of the string, in terms of bytes. If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? 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Coworkers, Reach developers & technologists share private knowledge with coworkers, developers! It has 8 characters:length returns the i value to main ( ) function shown.