What Is The Return Value Of Putchar ()?

What is the default return type of get care?

In C, return type of getchar(), fgetc() and getc() is int (not char).

So it is recommended to assign the returned values of these functions to an integer type variable.

The C library function int getchar(void) gets a character (an unsigned char) from stdin..

What is the EOF program?

The New Jersey Educational Opportunity Fund (EOF) provides financial assistance and support services (e.g. counseling, tutoring, and developmental course work) to students from educationally and economically disadvantaged backgrounds who attend participating institutions of higher education in the State of New Jersey.

What is putchar () in C?

Description. The C library function int putchar(int char) writes a character (an unsigned char) specified by the argument char to stdout.

What is the difference between Putchar and puts?

putchar is abbreviation for PUT CHARACTER whereas puts is abbreviation for PUT STRING. As the name specifies putchar is used for printing a single character on console or standard output whereas puts prints a string with an additional newline character at the end. It is used to write a line to the standard output.

What is the difference between getchar () and Getchar_unlocked ()?

One more difference with getchar() is, it is not a C standard library function, but a POSIX function. It may not work on Windows based compilers. It is a known fact than scanf() is faster than cin and getchar() is faster than scanf() in general. getchar_unlocked() is faster than getchar(), hence fastest of all.

What character is EOF?

No. EOF is not a character, but a state of the filehandle. While there are there are control characters in the ASCII charset that represents the end of the data, these are not used to signal the end of files in general. For example EOT (^D) which in some cases almost signals the same.

What is the use of putchar ()?

Syntax. The putchar() function takes an integer argument to write it to stdout. The integer is converted to unsigned char and written to the file. Upon success, the putchar() function returns the character represented by ch ; upon failure, the function returns EOF and sets the error indicator on stdout.

What is the value of EOF?

EOF instead is a negative integer constant that indicates the end of a stream; often it’s -1, but the standard doesn’t say anything about its actual value. C & C++ differ in the type of NULL and ‘\0’ : in C++ ‘\0’ is a char , while in C it’s an int ; this because in C all character literals are considered int s.

Is Putchar faster than printf?

printf is a generic printing function that works with 100 different format specifiers and prints the proper result string. putchar , well, puts a character to the screen. That also means that it’s probably much faster.

Why is Getchar used in C?

getchar is a function in C programming language that reads a single character from the standard input stream stdin, regardless of what it is, and returns it to the program. It is specified in ANSI-C and is the most basic input function in C. It is included in the stdio.

What is scanf () in C?

In C programming, scanf() is one of the commonly used function to take input from the user. The scanf() function reads formatted input from the standard input such as keyboards.

What is printf () in C?

“printf” is the name of one of the main C output functions, and stands for “print formatted”. printf format strings are complementary to scanf format strings, which provide formatted input (parsing). … Many languages other than C copy the printf format string syntax closely or exactly in their own I/O functions.

What is the return type of getch ()?

getch () function returns two keycodes for arrow keys (and some other special keys), It returns either 0 (0x00) or 224 (0xE0) first, and then returns a code identifying the key that was pressed.

What does Fgetc return?

The fgetc() function returns the character that is read as an integer. An EOF return value indicates an error or an end-of-file condition. Use the feof() or the ferror() function to determine whether the EOF value indicates an error or the end of the file.

What does Putchar return in C?

putchar() function in C The putchar(int char) method in C is used to write a character, of unsigned char type, to stdout. … Return Value: This function returns the character written on the stdout as an unsigned char. It also returns EOF when some error occurs.

What is Putchar and Getchar in C?

putchar() function is a file handling function in C programming language which is used to write a character on standard output/screen. getchar() function is used to get/read a character from keyboard input.

What is the return value of GETC ()?

getc is equivalent to fgetc. getc returns the next character from the stream referred to by fp; it returns EOF for End Of File or error.

How do I print the value of EOF?

Since EOF is an integer, we can print it with %d format in the printf. 2. EOF value is printed as -1.