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Tag Archives: C-Library

The <math.h> header file in C contains the standard math library functions which can be utilized for various mathematical operations. All math.h library functions accept… Read More
In C programming language, the exp() function is a built-in function of <math.h> library which is used to calculate the value of e (Euler’s Number… Read More
islower() function is used to check whether a character is a lowercase letter or not. It is a standard library function defined in the <ctype.h>… Read More
In C, the putc() function is used to write a character to a given stream. It is a standard library function defined in the <stdio.h>… Read More
 C++ offers its users a variety of functions, one of which is included in header files. In C++, all the header files may or may… Read More
std::string::crbegin() The std::string::crbegin() is a string class built-in function that returns a constant reverse iterator referring to the last element in the string. Using this… Read More
The std::string::rfind is a string class member function that is used to search the last occurrence of any character in the string. If the character… Read More
Most of the C Programs deals with complex number operations and manipulations by using complex.h header file. This header file was added in C99 Standard.… Read More
This header file consists of platform-dependent and implementation specific floating point values. A floating point has four parts. Sign Its value can be either negative… Read More
The localtime() function is defined in the time.h header file. The localtime( ) function return the local time of the user i.e time present at… Read More
In C++ there are number of stream classes for defining various streams related with files and for doing input-output operations. All these classes are defined… Read More
Any time you use an *f function, whether it be printf, scanf, or their derivatives (fprintf, fscanf, etc…), you are doing more things than you… Read More
In programming, a library is a collection of pre-compiled pieces of code that can be reused in a program. Libraries simplify life for programmers, in… Read More
The strlwr( ) function is a built-in function in C and is used to convert a given string into lowercase. Syntax: char *strlwr(char *str); Parameter:… Read More
The strrev() function is a built-in function in C and is defined in string.h header file. The strrev() function is used to reverse the given… Read More

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