What is the return value of putchar ?

Que. What is the return value of putchar()?
b. EOF if an error occurs
c. Nothing
d. Both character written & EOF if an error occurs
Answer:Both character written & EOF if an error occurs

What does Putchar return in C?

The putchar(int char) method in C is used to write a character, of unsigned char type, to stdout. This character is passed as the parameter to this method. … 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 the use of putchar ()?

putchar is a function in the C programming language that writes a single character to the standard output stream, stdout. Its prototype is as follows: int putchar (int character) The character to be printed is fed into the function as an argument, and if the writing is successful, the argument character is returned.

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What is the value of EOF?

EOF is a macro which expands to an integer constant expression with type int and an implementation dependent negative value but is very commonly -1. ‘’ is a char with value 0 in C++ and an int with the value 0 in C.

What is the default return type of Getchar?

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.

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.

What is #include Stdio H?

‘ means. Stdio. h is known to contain the input and output operations like «printf» or «scanf» etc. «h» extension means the header file. If you request to use a header file in the program by actually including it with the preprocessed C directive #include like you have seen the inclusion of stdio.

What is the use of putchar () and getchar ()?

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. Please find below the description and syntax for above file handling function.

What is the maximum number of arguments that can be passed to a function?

Except for functions with variable-length argument lists, the number of arguments in a function call must be the same as the number of parameters in the function definition. This number can be zero. The maximum number of arguments (and corresponding parameters) is 253 for a single function.

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Which format specifier is used for printing double value?

We can print the double value using both %f and %lf format specifier because printf treats both float and double are same. So, we can use both %f and %lf to print a double value.

How do you qualify for EOF?

An eligible EOF student must meet the following criteria:

Have a combined SAT score of 1100 or better, or ACT of 24 or better. Be a high school graduate with a C+ average or above in core academic courses. Have strong Math and Science grades. Be a first-time, full-time college student only.

How do I print the value of EOF?

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

What type is EOF?

to keep it simple: EOF is an integer type with value -1. Therefore, we must use an integer variable to test EOF.

What does Fgetc return?

fgetc() is used to obtain input from a file single character at a time. This function returns the ASCII code of the character read by the function. It returns the character present at position indicated by file pointer. … If pointer is at end of file or if an error occurs EOF file is returned by this function.

What is GETC return value?


The getc() function returns the next character from the input stream pointed to by stream. If the stream is at the end of the file, the end-of-file indicator for the stream is set and getc() returns EOF. If a read error occurs, the error indicator for the stream is set and getc() returns EOF.

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What is the return type of Fgetc?

Return Value

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.