A string is defined to be an array of characters. If it is desired to have an array of strings such as a list of names, it becomes similar to an array whose elements are also arrays. Therefore, an array of strings is a two-dimensional array; it may be declared as below. [Read more…] about Arrays of Strings in C
Strings in C
In C language, a string is defined as a variable length array of characters terminated by the null character (‘\O’). Letters such as A, b, C, etc., digits such as 1, 2, 3, etc., and special symbols such as +,- ,*, [] , () , etc., except a few control characters, may be included in a string. The various functions of C Standard Library for manipulation of strings are contained in header file <string.h>. [Read more…] about Strings in C
C Program Reads a string using dynamic memory allocation for strings
The function dstr_read given below reads a string from the keyboard into array buf, stores it in dynamically allocated memory and returns a pointer to it. [Read more…] about C Program Reads a string using dynamic memory allocation for strings
C program to Average Character Per Word in a String
We may want to know the number of words in a given string and the average word length. The English text contains words (i. e., sequences of letters) separated by spaces, newlines and punctuation marks such as period, comma, semicolon, colon, quotation marks, exclamation, question mark, etc. It is quite a difficult job to separate the words from these punctuation marks. However, this task is greatly simplified when we use the powerful strtok function provided in the standard C library. The program given below determines the number of words in a given string and the average word length. [Read more…] about C program to Average Character Per Word in a String
C program to separate the words in a given string
Let us write function str words to accept a string and separate the words in it. The number of words in a given string as well as the number of characters in each word are not known before hand. To keep the code simple, let us assume that the given string contains at the most MAX WORD words and each word in turn contains at the most MAX_ CHAR characters. Thus, the function str words can return the words in the given string in a two-dimensional array of size MAX_ WORD x MAX_CHAR of type char, as shown in fig. [Read more…] about C program to separate the words in a given string
C Program Swap String Using Strcpy Function
The function accepts two strings, str1 and str2, as parameters of type char * and exchanges their contents. Note that the strcpy function is used to copy the strings and a local character array is used to store string strl temporarily. This function can be called from the main function to exchange strings as shown below. [Read more…] about C Program Swap String Using Strcpy Function
strcmp function in C
A typical call to the strcmp function take the following form: [Read more…] about strcmp function in C
String Processing — Write out a function that prints out all the permutations of a String. For example, abc would give you abc, acb, bac, bca, cab, cba.
How can I convert a String to a Number
The standard C library provides several functions for converting strings to numbers of all formats (integers, longs, floats, and so on) and vice versa. [Read more…] about How can I convert a String to a Number
How can I convert a Number to a String
The standard C library provides several functions for converting numbers of all formats (integers, longs, floats, and so on) to strings and vice versa The following functions can be used to convert integers to strings : [Read more…] about How can I convert a Number to a String
How will you define String Processing along with the different String Operations
String Processing (Storing Strings and String Operations) : In C, a string is stored as a null-terminated char array. This means that after the last truly usable char there is a null, hex 00, which is represented in C by ‘\0’. The subscripts used for the array start with zero (0). The following line declares a char array called str. [Read more…] about How will you define String Processing along with the different String Operations
How can we replace single character in a String
Single characters can be replaced in a string. Given the following declarations, several things are possible. [Read more…] about How can we replace single character in a String
What is the difference between printf and sprintf
sprintf: This Writes formatted data to a character string in memory instead of stdout [Read more…] about What is the difference between printf and sprintf