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Difference between structure and union in c Structure Structure is a user defined datatype, programmer can pack up one or more variables of other datatypes into a single element. struct keyword is used to define a structure. Memory is allocated to all structure members. Dot ( . ) operator is used to access a structure … Read more
What is strncpy in c programming? strncpy function copies n characters from source to destination. This function is defined in string.h header file. This function returns a copied string. Prototype Parameters strncpy function takes source string, destination pointer and size value as input parameters. Return value strncpy function returns a copied string. Example program for … Read more
Decision making in C programming language provides an efficient way to control the flow of execution of a c program. What is decision making in c programming First we look at what is decision making? Consider a scenario you have to make a decision according to some conditions such as the price of a product … Read more
What is error handling in c programming? There are no direct support for error handling in c. C provides an access at lower level to handle errors. Most of the function calls return -1 or NULL in case of any errors and sets errno i.e. error code. One can find various error codes in error.h … Read more
What is dynamic memory allocation? Dynamic memory allocation is a method of allocating memory during run time. In dynamic memory allocation memory space can be created, modified, freed. Dynamic memory is allocated on heap. In c programming dynamic memory allocation and deallocation can be done using these 4 functions defined on stdlib.h header file. malloc() … Read more
How to convert int to char in c? We can convert an integer to character by adding ‘0’ (zero) character. char datatype is represented as ascii values in c programming. Ascii values are integer values if we add the ‘0’ then we get the ascii of that integer digit that can be assigned to a … Read more
What is isascii in c programming? isascii in c checks the passed value is ascii character or not. This function is defined in ctype.h header file. This function returns non-zero digit if passed value is ascii character otherwise zero. Prototype Parmeter This function takes character as input parameter and converts it into ASCII value. Return … Read more
What is isxdigit in c programming? isxdigit in c checks the passed character is hexadecimal digit or not. This function is defined in ctype.h header file. This function returns non-zero digit if passed character is hexadecimal value otherwise zero. Prototype Parameter This function takes character as input parameter and converts it into ASCII value. Return … Read more
If you looking for strcmp in c programming read this blog post completely. What is strcmp in c? strcmp in c is used to compare two strings. If both strings are identical it returns zero. It is defined in string.h header file. It takes two strings and returns an integer. For example consider two strings … Read more
If you want to know about strncat in c then read this blog post. What is strncat in c programming? strncat in c appends source string to the end of a destination string upto n characters long. strncat returns pointer to the destination string. It is defined in string.h header file. Prototype Parameters for strncat … Read more