Standard library header <cstdio>
From cppreference.com
This header was originally in the C standard library as <stdio.h>.
This header is part of the C-style input/output library.
Contents |
[edit] Types
| FILE | type, capable of holding all information needed to control a C I/O stream |
| fpos_t | type, capable of uniquely specifying a position in a file |
| unsigned integer type returned by the sizeof operator (typedef) |
[edit] Macros
| implementation-defined null pointer constant (macro constant) | |
| stdin stdout stderr |
expression of type FILE* associated with the input stream expression of type FILE* associated with the output stream expression of type FILE* associated with the error output stream (macro constant) |
| EOF |
integer constant expression of type int and negative value (macro constant) |
| FOPEN_MAX |
number of files that can be open simultaneously (macro constant) |
| FILENAME_MAX |
size needed for an array of char to hold the longest supported file name (macro constant) |
| BUFSIZ |
size of the buffer used by std::setbuf (macro constant) |
| _IOFBF _IOLBF _IONBF |
argument to std::setbuf indicating fully buffered I/O argument to std::setbuf indicating line buffered I/O argument to std::setbuf indicating unbuffered I/O (macro constant) |
| SEEK_SET SEEK_CUR SEEK_END |
argument to std::fseek indicating seeking from beginning of the file argument to std::fseek indicating seeking from the current file position argument to std::fseek indicating seeking from end of the file (macro constant) |
| TMP_MAX |
maximum number of unique filenames that can be generated by std::tmpnam (macro constant) |
| L_tmpnam |
size needed for an array of char to hold the result of std::tmpnam (macro constant) |
[edit] Functions
File access | |
| opens a file (function) | |
| open an existing stream with a different name (function) | |
| closes a file (function) | |
| synchronizes an output stream with the actual file (function) | |
| sets the buffer for a file stream (function) | |
| sets the buffer and its size for a file stream (function) | |
Direct input/output | |
| reads from a file (function) | |
| writes to a file (function) | |
Unformatted input/output | |
Narrow character | |
| gets a character from a file stream (function) | |
| gets a character string from a file stream (function) | |
| writes a character to a file stream (function) | |
| writes a character string to a file stream (function) | |
| reads a character from stdin (function) | |
| reads a character string from stdin(until C++14) (function) | |
| writes a character to stdout (function) | |
| writes a character string to stdout (function) | |
| puts a character back into a file stream (function) | |
Formatted input/output | |
Narrow/multibyte character | |
| reads formatted input from stdin, a file stream or a buffer (function) | |
| (C++11)(C++11)(C++11) |
reads formatted input from stdin, a file stream or a buffer using variable argument list (function) |
| (C++11) |
prints formatted output to stdout, a file stream or a buffer (function) |
| prints formatted output to stdout, a file stream or a buffer using variable argument list (function) | |
File positioning | |
| returns the current file position indicator (function) | |
| gets the file position indicator (function) | |
| moves the file position indicator to a specific location in a file (function) | |
| moves the file position indicator to a specific location in a file (function) | |
| moves the file position indicator to the beginning in a file (function) | |
Error handling | |
| clears errors (function) | |
| checks for the end-of-file (function) | |
| checks for a file error (function) | |
| displays a character string corresponding of the current error to stderr (function) | |
Operations on files | |
| erases a file (function) | |
| renames a file (function) | |
| creates and opens a temporary, auto-removing file (function) | |
| returns a unique filename (function) | |