What is the function of fputc?
What is the function of fputc?
fputc() is used to write a single character at a time to a given file. It writes the given character at the position denoted by the file pointer and then advances the file pointer. This function returns the character that is written in case of successful write operation else in case of error EOF is returned.
What does fputc mean in C?
Description. The fputc() function converts c to an unsigned char and then writes c to the output stream at the current position and advances the file position appropriately. If the stream is opened with one of the append modes, the character is appended to the end of the stream.
How do you use fputc?
The syntax of the fputc() function is as follows: Syntax: int fputc(int ch, FILE *fp); The fputc() function is used to write a single character specified by the first argument to a text file pointed by the fp pointer. After writing a character to the text file, it increments the internal position pointer.
What is the value of fputc If the operation is successful?
Upon successful completion, fputc() returns the value it has written. Otherwise, it returns EOF, the error indicator for the stream is set, and errno is set to indicate the error.
What is the difference between PUTC and Fputc?
putc appends the character c to the named output stream. It returns the character written. fputc behaves like putc, but is a genuine function rather than a macro; it may therefore be used as an argument. fputc runs more slowly than putc, but takes less space per invocation.
How do I read an integer file?
The getw and putw I/O functions We use the getw() and putw() I/O functions to read an integer from a file and write an integer to a file respectively. Syntax of getw: int num = getw(fptr); Where, fptr is a file pointer.
What is Ferror C?
Description. The ferror() function tests for an error in reading from or writing to the given stream . If an error occurs, the error indicator for the stream remains set until you close stream , call the rewind() function, or call the clearerr() function. Return Value.
What is the difference between fgets and fgetc?
difference between the fgetc() and fgets()? fgets() will read the whole string upto the size specified in argument list but when end of line occurs fgetc() returns EOF while fgets() returns NULL .
What do you mean by Getchar?
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. h header file.
What is the function fputc ( ) used for?
The function fputc () is used to write the character to the file. It writes the character to the file, if successful otherwise, returns EOF. char − The character is to be written to the file. stream − This is the pointer to the file where character is to be written. Let’s say we have “new.txt” file with the following content −
When to use fputc and when to return EOF?
fputc() is used to write a single character at a time to a given file. It writes the given character at the position denoted by the file pointer and then advances the file pointer. This function returns the character that is written in case of successful write operation else in case of error EOF is returned.
When is fputc ( ) is executed characters of string variable are written?
When fputc () is executed characters of string variable are written into the file one by one. When we read the line from the file we get the same string that we entered. This article is contributed by Hardik Gaur.
What does fputc ( ) do in Hello programmers?
On success, the fputc () function returns the written character. On failure, it returns EOF and sets the error indicator on stream. When you run the program, the string “Hello programmers” will be written to file.txt file.