fgetc in c

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What is fgetc in c programming?

fgetc is a function which is used to obtain character input from a file.

This function takes input as character by character from specified file.

This function returns the characters read from a file as unsigned char which is casted to int.

It uses file pointer to seek the data in a file.

If the file pointer reads EOF then it terminates the process.

It is defined in stdio.h header file.

Prototype

#include<stdio.h>
int fgetc(FILE *fpointer);

Parameters of fgetc in c

fgetc takes file pointer to seek input in a file.

Return value of fgetc in c

This function returns data read as unsigned char which is casted to an int or error.

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Example program for fgetc in c

Example

#include<stdio.h>
int main()
{
  FILE *fpointer;
  int n;
  fpointer=fopen("scholarsoul.txt","r");
  if(fpointer==NULL)
  {
   printf("File reading error \n");
   return(-1);
  }
  do
  {
   n=fgetc(fpointer);
   if(n==EOF)
    break;
   else 
    printf("%c \n",n);
   }while(1);
  fclose(fpointer);
  return 0;
}

Code explanation

The input is taken from a file by calling fgetc function. The content of the file is printed onto the console character by character.

fgetc Man page

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Difference between fgetc and fseek in c

fgetc is a function that is used to obtain input from a file. fseek is used to change the file pointer to the specified stream.

fgetc returns the characters read from a file. The fseek function returns zero in operation is successful otherwise a nonzero value.

fgetc takes one argument. fseek takes three arguments.

fgetc moves pointer from the beginning of a file. fseek moves the pointer depending upon whence argument value specified.

Prototypes are as follows

int fgetc(FILE *fpointer);

int fseek(FILE *strm,long int offst,int whnce);

fgetc in c	fseek in c
Used to obtain input from a file.	Used to change the file pointer to the specified stream.
int fgetc(FILE *fpointer);	int fseek(FILE *strm,long int offst,int whnce);
Returns the characters read from a file.	Returns zero in operation is successful otherwise a nonzero value.

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Difference between fgetc and fputc in c

fgetc is a function which is used to obtain input from a file. fputc is used to write single character at a time to a file.

fgetc returns the characters read from a file. fputc returns character written in a file otherwise EOF as error.

fgetc takes one argument. fputc takes two arguments.

Prototypes are as follows

int fgetc(FILE *fpointer);

int fputc(int char,FILE *fpointer);

fgetc in c	fputc in c
Used to obtain input from a file.	Used to write single character at a time to a file.
int fgetc(FILE *fpointer);	int fputc(int char,FILE *fpointer);
Returns the characters read from a file.	Returns character written in a file otherwise EOF as error.

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Difference between fgetc and putc in c

fgetc is a function which is used to obtain input from a file. putc function writes a character to the specified stream.

fgetc returns the characters read from a file. putc returns the character written as an unsigned char cast to an int or error.

fgetc takes one argument. putc takes two arguments.

Prototypes are as follows

int fgetc(FILE *fpointer);

int putc(int char,FILE *strm);

fgetc in c	putc in c
Used to obtain input from a file.	Writes a character to the specified stream.
int fgetc(FILE *fpointer);	int putc(int char,FILE *strm);
Returns the characters read from a file.	Returns the character written as an unsigned char cast to an int or error.

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Difference between fgetc and fgets in c

fgetc is a function which is used to obtain input from a file. fgets reads a line from a specified stream.

fgetc returns the characters read from a file. fgets returns the string read from a file or null pointer if error occurs.

fgetc takes one argument. fgets takes three arguments.

Prototypes are as follows

int fgetc(FILE *fpointer);

char *fgets(char *string,int m,FILE *strm);

fgetc in c	fgets in c
Used to obtain input from a file.	Reads a line from a specified stream.
int fgetc(FILE *fpointer);	char *fgets(char *string,int m,FILE *strm);
Returns the characters read from a file.	Returns the string read from a file or null pointer if error occurs.

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Difference between fgetc and fputs in c

fgetc is a function which is used to obtain input from a file. fputs writes a string to the specified stream.

fgetc returns the characters read from a file. fputs returns a non-negative value or EOF on error.

fgetc takes one argument. fputs takes two arguments.

Prototypes are as follows

int fgetc(FILE *fpointer);

int fputs(const char *string,FILE *stream);

fgetc in c	fputs in c
Used to obtain input from a file.	Writes a string to the specified stream.
int fgetc(FILE *fpointer);	int fputs(const char *string,FILE *stream);
Returns the characters read from a file.	Returns a non-negative value or EOF on error.

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