Quick Answer: What Is The Syntax Of Ungetc ()?

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 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.

How do I use Fgetc?

fgetc() and fputc() in C. fgetc() is used to obtain input from a file single character at a time. This function returns the number of characters read by the function. It returns the character present at position indicated by file pointer.

Which character of pushback is guaranteed per file?

5. Only _____character of pushback is guaranteed per file when ungetc is used.

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.

How does Fgets work?

The C library function char *fgets(char *str, int n, FILE *stream) reads a line from the specified stream and stores it into the string pointed to by str. It stops when either (n-1) characters are read, the newline character is read, or the end-of-file is reached, whichever comes first.

Which pre defined function returns a pointer to the last occurence of a character in a string?

strrchrThe strrchr() function returns a pointer to the last occurrence of c in string. If the given character is not found, a NULL pointer is returned.

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 does Ungetc do?

The ungetc() function takes a single character and shoves it back onto an input stream. It is the opposite of the getc() function, which reads a single character from an input stream. Also, ungetc() is an input function, not an output function. … The value is internally converted to an unsigned char when put back.