fgetc, getc
From cppreference.com
| Defined in header
<stdio.h>
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| int fgetc( FILE *stream );
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| int getc( FILE *stream );
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Reads the next character from the given input stream. getc() may be implemented as a macro.
Contents |
[edit] Parameters
| stream | - | to read the character from |
[edit] 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.
[edit] 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); }
[edit] References
- C11 standard (ISO/IEC 9899:2011):
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- 7.21.7.1 The fgetc function (p: 330)
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- 7.21.7.5 The getc function (p: 332)
- C99 standard (ISO/IEC 9899:1999):
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- 7.19.7.1 The fgetc function (p: 296)
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- 7.19.7.5 The getc function (p: 297-298)
- C89/C90 standard (ISO/IEC 9899:1990):
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- 4.9.7.1 The fgetc function
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- 4.9.7.5 The getc function
[edit] See also
| (until C11)(since C11)
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reads a character string from stdin (function) |
| writes a character to a file stream (function) |
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| puts a character back into a file stream (function) |
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C++ documentation for fgetc, getc
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