C stdio (stdio.h) Library
C stdio Functions
The <stdio.h> header provides a variety of functions for input, output
and file handling.
A list of all stdio functions can be found in the table below:
| Function | Description |
|---|---|
| fclose() | Closes a file |
| feof() | Returns a true value when the position indicator has reached the end of the file |
| ferror() | Returns a true value if a recent file operation had an error |
| fgetc() | Returns the ASCII value of a character in a file and advances the position indicator |
| fgets() | Reads a line from a file and advances the position indicator |
| fopen() | Opens a file and returns a file pointer for use in file handling functions |
| fprintf() | Writes a formatted string into a file |
| fputc() | Writes a character into a file and advances the position indicator |
| fputs() | Writes a string into a file and advances the position indicator |
| fread() | Reads data from a file and writes it into a block of memory |
| fscanf() | Reads formatted data from a file and writes it into a number of memory locations |
| fseek() | Moves the position indicator of a file pointer |
| ftell() | Returns the value of the position indicator of a file pointer |
| fwrite() | Writes data from a block of memory into a file |
| getc() | The same as fgetc() |
| getchar() | Reads one character of user input and returns its ASCII value |
| printf() | Writes a formatted string to the console |
| putc() | The same as fputc() |
| putchar() | Outputs a single character to the console |
| puts() | Outputs a string to the console |
| remove() | Deletes a file |
| rename() | Changes the name of a file |
| rewind() | Moves the position indicator to the beginning of the file |
| scanf() | Reads formatted data from user input and writes it into a number of memory locations |
| snprintf() | Writes a formatted string into a char array (memory-safe) |
| sprintf() | Writes a formatted string into a char array |
| sscanf() | Reads a formatted string from a char array and writes it into a number
of memory locations |