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getc(), putc() functions in C:
getc(), putc() functions are file handling function in C programming language which is used to read a character from a file (getc) and display on standard output or write into a file (putc). Please find below the description and syntax for above file handling functions.
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File operation
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Declaration & Description
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| getc() | Declaration: int getc(FILE *fp)
getc functions is used to read a character from a file. In a C program, we read a character as below. |
| putc() | Declaration: int putc(int char, FILE *fp)
putc function is used to display a character on standard output or is used to write into a file. In a C program, we can use putc as below. putc(char, stdout); |
Example program for getc(), putc() functions in C programming language:
This file handling C program illustrates how to read the contents of a file. Assume that, a file called “test.c” contains the following data “Hi, How are you?”. Let’s read this data using following C program using getc() and putc() functions.
Please note that putc() function can be used to write a character into a file also instead of stdout. For that, please use putc( char, fp ).
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#include <stdio.h> int main() { char ch; FILE *fp; if (fp = fopen("test.c", "r")) { ch = getc(fp); while (ch != EOF) { putc(ch, stdout); ch = getc(fp); } fclose(fp); return 0; } return 1; } |
Output:
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Hi, How are you?
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Other Inbuilt file handling functions in C programming language:
C programming language offers many other inbuilt functions for handling files. They are given below. Please click on each function name below to know more details, example programs, output for the respective file handling function.
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File handling functions
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Description
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| fopen () | fopen () function creates a new file or opens an existing file. |
| fclose () | fclose () function closes an opened file. |
| getw () | getw () function reads an integer from file. |
| putw () | putw () functions writes an integer to file. |
| fgetc () | fgetc () function reads a character from file. |
| fputc () | fputc () functions write a character to file. |
| gets () | gets () function reads line from keyboard. |
| puts () | puts () function writes line to o/p screen. |
| fgets () | fgets () function reads string from a file, one line at a time. |
| fputs () | fputs () function writes string to a file. |
| feof () | feof () function finds end of file. |
| fgetchar () | fgetchar () function reads a character from keyboard. |
| fprintf () | fprintf () function writes formatted data to a file. |
| fscanf () | fscanf () function reads formatted data from a file. |
| fputchar () | fputchar () function writes a character onto the output screen from keyboard input. |
| fseek () | fseek () function moves file pointer position to given location. |
| SEEK_SET | SEEK_SET moves file pointer position to the beginning of the file. |
| SEEK_CUR | SEEK_CUR moves file pointer position to given location. |
| SEEK_END | SEEK_END moves file pointer position to the end of file. |
| ftell () | ftell () function gives current position of file pointer. |
| rewind () | rewind () function moves file pointer position to the beginning of the file. |
| getc () | getc () function reads character from file. |
| getch () | getch () function reads character from keyboard. |
| getche () | getche () function reads character from keyboard and echoes to o/p screen. |
| getchar () | getchar () function reads character from keyboard. |
| putc () | putc () function writes a character to file. |
| putchar () | putchar () function writes a character to screen. |
| printf () | printf () function writes formatted data to screen. |
| sprinf () | sprinf () function writes formatted output to string. |
| scanf () | scanf () function reads formatted data from keyboard. |
| sscanf () | sscanf () function Reads formatted input from a string. |
| remove () | remove () function deletes a file. |
| fflush () | fflush () function flushes a file. |