C language

C #error in C Language

The #error preprocessor directive indicates error. The compiler gives fatal error if #error directive is found and skips...

C language

C #else in C Language

The #else preprocessor directive evaluates the expression or condition if condition of #if is false. It can be used with...

C language

C #if in C Language

The #if preprocessor directive evaluates the expression or condition. If condition is true, it executes the code otherwi...

C language

C #ifndef in C Language

The #ifndef preprocessor directive checks if macro is not defined by #define. If yes, it executes the code otherwise #el...

C language

C #ifdef in C Language

The #ifdef preprocessor directive checks if macro is defined by #define. If yes, it executes the code otherwise #else co...

C language

C #undef in C Language

The #undef preprocessor directive is used to undefine the constant or macro defined by #define.Syntax:#undef token ...

C language

C #define in C Language

The #define preprocessor directive is used to define constant or micro substitution. It can use any basic data type.Synt...

C language

C #include in C Language

The #include preprocessor directive is used to paste code of given file into current file. It is used include system-def...

C language

C Predefined Macros in C Language

ANSI C defines many predefined macros that can be used in c program.No.MacroDescription1_DATE_represents current date in...

C language

C ftell() function in C Language

The ftell() function returns the current file position of the specified stream. We can use ftell() function to get the t...

C language

C rewind() function in Language

The rewind() function sets the file pointer at the beginning of the stream. It is useful if you have to use stream many ...

C language

C fseek() function in C Language

The fseek() function is used to set the file pointer to the specified offset. It is used to write data into file at desi...

C language

C fputs() and fgets() in C Language

The fputs() and fgets() in C programming are used to write and read string from stream. Let's see examples of writing an...

C language

C fputc() and fgetc() in C Language

Writing File : fputc() functionThe fputc() function is used to write a single character into file. It outputs a characte...

C language

File Handling in C Language

In programming, we may require some specific input data to be generated several numbers of times. Sometimes, it is not e...

C language

Union in C Language

Union can be defined as a user-defined data type which is a collection of different variables of different data types in...

C language

Structure Padding in C Language

Structure padding is a concept in C that adds the one or more empty bytes between the memory addresses to align the data...

C language

Nested Structure in C Language

C provides us the feature of nesting one structure within another structure by using which, complex data types are creat...

C language

C Array of Structures

Why use an array of structures?Consider a case, where we need to store the data of 5 students. We can store it by using ...

C language

typedef in C Language

The typedef is a keyword used in C programming to provide some meaningful names to the already existing variable in the ...

C language

What is Structure in C Language

Structure in c is a user-defined data type that enables us to store the collection of different data types. Each element...

C language

C Structure in C Language

Why use structure?In C, there are cases where we need to store multiple attributes of an entity. It is not necessary tha...

C language

C Math in C Language

C Programming allows us to perform mathematical operations through the functions defined in <math.h> header file. ...

C language

C String Functions in C Language

There are many important string functions defined in "string.h" library.No.FunctionDescription1)strlen(string_name)retur...

C language

Pointers with strings in C Language

We have used pointers with the array, functions, and primitive data types so far. However, pointers can be used to point...

C language

Traversing String in C Language

Traversing the string is one of the most important aspects in any of the programming languages. We may need to manipulat...

C language

C Strings In C Language

The string can be defined as the one-dimensional array of characters terminated by a null ('\0'). The character array or...

C language

C Function Pointer in C Language

As we know that we can create a pointer of any data type such as int, char, float, we can also create a pointer pointing...

C language

What is a Null Pointer in C Language

A Null Pointer is a pointer that does not point to any memory location. It stores the base address of the segment. The n...

C language

C dereference pointer in C Language

As we already know that "what is a pointer", a pointer is a variable that stores the address of another variable. The de...

C language

void pointer in C Language

Till now, we have studied that the address assigned to a pointer should be of the same type as specified in the pointer ...

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