RTEMS GNU Tools On-Line Library

Stdio

Chapter 3: Input and Output (``stdio.h`')

This chapter comprises functions to manage files or other input/output streams. Among these functions are subroutines to generate or scan strings according to specifications from a format string.

The underlying facilities for input and output depend on the host system, but these functions provide a uniform interface.

The corresponding declarations are in `stdio.h'.

The reentrant versions of these functions use macros

_stdin_r(reent)
_stdout_r(reent)
_stderr_r(reent)

instead of the globals stdin, stdout, and stderr. The argument <[reent]> is a pointer to a reentrancy structure.

clearerr Clear file or stream error indicator

fclose Close a file

feof Test for end of file

ferror Test whether read/write error has occurred

fflush Flush buffered file output

fgetc Get a character from a file or stream

fgetpos Record position in a stream or file

fgets Get character string from a file or stream

fiprintf Write formatted output to file (integer only)

fopen Open a file

fdopen Turn an open file into a stream

fputc Write a character on a stream or file

fputs Write a character string in a file or stream

fread Read array elements from a file

freopen Open a file using an existing file descriptor

fseek Set file position

fsetpos Restore position of a stream or file

ftell Return position in a stream or file

fwrite Write array elements from memory to a file or stream

getc Get a character from a file or stream (macro)

getchar Get a character from standard input (macro)

gets Get character string from standard input (obsolete)

iprintf Write formatted output (integer only)

mktemp Generate unused file name

perror Print an error message on standard error

putc Write a character on a stream or file (macro)

putchar Write a character on standard output (macro)

puts Write a character string on standard output

remove Delete a file's name

rename Rename a file

rewind Reinitialize a file or stream

setbuf Specify full buffering for a file or stream

setvbuf Specify buffering for a file or stream

siprintf Write formatted output (integer only)

printf Write formatted output

scanf Scan and format input

tmpfile Create a temporary file

tmpnam Generate name for a temporary file

vprintf Format variable argument list

RTEMS GNU Tools On-Line Library

Chapter 3: Input and Output (`stdio.h')

Chapter 3: Input and Output (``stdio.h`')