Apache C++ Standard Library Reference Guide

Appendix B: Extensions to the C++ Standard

This implementation of the C++ Standard Library contains numerous features that enhance its functionality, but do not strictly conform to the Standard as it is written. These extensions are listed in Table 39. If you are reading this manual online, click the name of the extension to take you to its location in the documentation.

Table 39: Extensions to the C++ Standard Library

Class or Component

Extension

basic_filebuf

basic_filebuf(int fd, char_type *buf = 0,

streamsize n = /* default size */);

basic_filebuf(FILE *fp, char_type *buf = 0,

streamsize n = /* default size */);

attach(int fd);

detach();

open(const char* fname, ios_base::openmode mode,

long protection = 0666);

The behavior of the function when (fname == 0) evaluates to true is defined as an extension of this implementation.

The protection argument is not part of the Standard.

open(int fd, char_type *buf = 0,

streamsize n = /* default size */);

open(FILE *fp, char_type *buf = 0,

streamsize n = /* default size */);

basic_fstream

basic_fstream(const char* s,

ios_base::openmode mode, long protection);

The protection argument is not part of the Standard.

basic_ifstream(int fd, char_type *buf,

streamsize n);

basic_ifstream(FILE *fp, char_type* buf,

streamsize n);

open(const char* s,

ios_base::openmode, long protection);

The protection argument is not part of the Standard.

open(int fd, char_type *buf = 0,

streamsize n = /* default size */);

open(FILE *fp, char_type *buf = 0,

streamsize n = /* default size */);

fd() const;

basic_ifstream

basic_ifstream(const char* s

ios_base::openmode mode,

long protection = 0666);

basic_ifstream(int fd, char_type *buf,

streamsize n);

basic_ifstream(FILE *fp, char_type* buf,

streamsize n);

open(const char* s, ios_base::openmode,

long protection);

The protection argument is not part of the Standard.

open(int fd, char_type *buf = 0,

streamsize n = /* default size */);

open(FILE *fp, char_type *buf = 0,

streamsize n = /* default size */);

basic_ofstream

basic_ofstream(const char* s,

ios_base::openmode mode = ios_base::in,

long protection = 0666);

basic_ofstream(int fd, char_type *buf,

streamsize n);

basic_ofstream(FILE *fp, char_type* buf,

streamsize n);

open(const char* s, ios_base::openmode,

long protection);

open(int fd, char_type *buf = 0,

streamsize n = /* default size */);

open(FILE *fp, char_type *buf = 0,

streamsize n = /* default size */);

count(),

count_if()

count(InputIterator first, InputIterator last, 
  const T& value, Size& n);

count_if(InputIterator first, 
  InputIterator last, Predicate pred, Size& n);

ios_base

The elements nocreate and noreplace of the openmode bitmask type are provided for compatibility with Classic iostreams as an extension of this implementation. See Bitmask Types for more information.