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The C library function int strncmp(const char *str1, const char *str2, size_t n) compares at most the first n bytes of str1 and str2.An array of characters is called a string.DeclarationThe syntax for declaring an array is as follows −char stringname [size];For example − char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’.The strncmp ( ) FunctionThis function is used for comparing first ‘n’ characters of 2 ... Read More

The C library function int strcmp(const char *str1, const char *str2) compares the string pointed to, by str1 to the string pointed to by str2.An array of characters is called a string.DeclarationFollowing is the declaration for an array −char stringname [size];For example − char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’.The strcmp() functionThis function compares two strings.It returns the ASCII difference of the first two non ... Read More

The C library function char *strncat(char *dest, const char *src, size_t n) appends the string pointed to by src to the end of the string pointed to by dest up to n characters long.An array of characters is called a string.DeclarationFollowing is the declaration for an array −char stringname [size];For example: char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’.The strncat( ) functionThis is used for combining ... Read More

The C library function char *strcat(char *dest, const char *src) appends the string pointed to by src to the end of the string pointed to by dest.An array of characters is called a string.DeclarationFollowing is the declaration for an array −char stringname [size];For example − char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’.The strcat( ) functionThis is used for combining or concatenating two strings.The length of ... Read More

The C library function char *strcpy(char *dest, const char *src) copies the string pointed to, by src to dest.An array of characters is called a string.DeclarationFollowing is the declaration for an arraychar stringname [size];For example − char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’The strcpy ( ) functionThis function is used for copying source string into destination string.The length of the destination string is greater than ... Read More

The C library function size_t strspn(const char *str1, const char *str2) calculates the length of the initial segment of str1 which consists entirely of characters in str2.An array of characters is called a string.DeclarationFollowing is the declaration for an array −char stringname [size];For example − char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’.The Strspn() functionThis function search for specified string in the given string and returns ... Read More

The C library function int strcoll(const char *str1, const char *str2) compares string str1 to str2. The result is dependent on the LC_COLLATE setting of the location.An array of characters is called a stringDeclarationGiven below is the declaration of an array −char stringname [size];For example − char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’The Strcoll() FunctionThis function is same as strcmp() function, it compares two strings ... Read More

The C library function size_t strlen(const char *str) computes the length of the string str up to, but not including the terminating null character.An array of characters is called a string.DeclarationGiven below is the declaration of an array −char stringname [size];For example − char a[50]; string of length 50 charactersInitializationUsing single character constant −char a[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char a[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’The strlen ( ) functionThis function gives the length of the string, i.e., the number of ... Read More

Pass by reference in C programming language is the addresses which are sent as arguments.AlgorithmAn algorithm is given below to explain the working of pass by value in C language.START Step 1: Declare a function with pointer variables that to be called. Step 2: Declare variables a, b. Step 3: Enter two variables a, b at runtime. Step 4: Calling function with pass by reference. jump to step 6 Step 5: Print the result values a, b. Step 6: Called function swap having address as arguments.    i. Declare temp variable    ii. Temp=*a    iii. *a=*b    iv. *b=temp ... Read More

Pass by value is termed as the values which are sent as arguments in C programming language.AlgorithmAn algorithm is given below to explain the working of pass by value in C language.START Step 1: Declare a function that to be called. Step 2: Declare variables. Step 3: Enter two variables a, b at runtime. Step 4: calling function jump to step 6. Step 5: Print the result values a, b. Step 6: Called function swap.    i. Declare temp variable    ii. Temp=a    iii. a=b    iv. b=temp STOPExampleGiven below is the C program to swap the two numbers ... Read More