fgetc, getc
From cppreference.com
| Defined in header <stdio.h>
|
||
| int fgetc( FILE *stream ); |
||
| int getc( FILE *stream ); |
||
Reads the next character from the given input stream. getc() may be implemented as a macro.
Parameters
| stream | - | to read the character from |
Return value
The obtained character on success or EOF on failure.
If the failure has been caused by end-of-file condition, additionally sets the eof indicator (see feof()) on stream. If the failure has been caused by some other error, sets the error indicator (see ferror()) on stream.
Example
Run this code
#include <stdio.h> #include <stdlib.h> int main(void) { FILE* fp = fopen("test.txt", "r"); if(!fp) { perror("File opening failed"); return EXIT_FAILURE; } int c; // note: int, not char, required to handle EOF while ((c = fgetc(fp)) != EOF) { // standard C I/O file reading loop putchar(c); } if (ferror(fp)) puts("I/O error when reading"); else if (feof(fp)) puts("End of file reached successfully"); fclose(fp); }
References
- C11 standard (ISO/IEC 9899:2011):
- 7.21.7.1 The fgetc function (p: 330)
- 7.21.7.5 The getc function (p: 332)
- C99 standard (ISO/IEC 9899:1999):
- 7.19.7.1 The fgetc function (p: 296)
- 7.19.7.5 The getc function (p: 297-298)
- C89/C90 standard (ISO/IEC 9899:1990):
- 4.9.7.1 The fgetc function
- 4.9.7.5 The getc function
See also
| (removed in C11)(since C11) |
reads a character string from stdin (function) |
| writes a character to a file stream (function) | |
| puts a character back into a file stream (function) |