General syntax of pointer declaration is, data-type *pointer_name; Data type of pointer must be same as the variable, which the pointer is pointing. void type pointer works with all data types, but isn’t used oftenly. Initialization of Pointer variable Pointer Initialization is the process of assigning address of a variable to pointer variable. Pointer variable …
A file represents a sequence of bytes on the disk where a group of related data is stored. File is created for permanent storage of data. It is a ready made structure. In C language, we use a structure pointer of file type to declare a file. FILE *fp; C provides a number of functions …
C language does not provide direct support for error handling. However few method and variable defined inerror.h header file can be used to point out error using return value of the function call. In C language, a function return -1 or NULL value in case of any error and a global variable errno is set …
The process of allocating memory at runtime is known as dynamic memory allocation. Library routines known as “memory management functions” are used for allocating and freeing memory during execution of a program. These functions are defined in stdlib.h. Function Description malloc() allocates requested size of bytes and returns a void pointer pointing to the first …
What is Dynamic Memory Allocation In C Programming Language? C Tutorial Read More »
Command line argument is a parameter supplied to the program when it is invoked. Command line argument is an important concept in C programming. It is mostly used when you need to control your program from outside. command line arguments are passed to main() method. Syntax : int main( int argc, char *argv[]) Here argc …