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std::basic_ifstream

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std::basic_ifstream
 
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template< class CharT, class Traits = std::char_traits<CharT> > class basic_ifstream : public basic_istream<CharT, Traits>
basic_ifstream . streambuffer (std::basic_filebuf) (std::basic_istream).
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The class template basic_ifstream implements high-level input operations on file based streams. It interfaces a file-based streambuffer (std::basic_filebuf) with the high-level interface of (std::basic_istream).
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std::basic_ifstream , : std::basic_filebuf<CharT, Traits>.
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A typical implementation of std::basic_ifstream holds only one non-derived data member: an instance of std::basic_filebuf<CharT, Traits>.
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std-basic_ifstream-inheritance.svg [std-basic_ifstream-inheritance.svg]

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Two specializations for common character types are also defined:
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<fstream>
Definition
ifstream basic_ifstream<char>
wifstream basic_ifstream<wchar_t>

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char_type CharT[]
traits_type Traits[]
int_type Traits::int_type[]
pos_type Traits::pos_type[]
off_type Traits::off_type[]

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constructs the file stream
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(public -) []
()
[virtual] ( )
 basic_ifstream ,
(virtual public -) []
(C++11)
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moves the file stream
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(public -) []
(C++11)
(public -) []
(raw)
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returns the underlying raw file device object
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(public -) []
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File operations
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(public -) []
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opens a file and associates it with the stream
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(public -) []

(public -) []

,

(C++11)
 std::swap
( ) []


std::basic_istream

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 std::basic_istream
(public - std::basic_istream) []

(public - std::basic_istream) []

(public - std::basic_istream) []
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unextracts a character
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(public - std::basic_istream) []
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puts character into input stream
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(public - std::basic_istream) []
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extracts characters until the given character is found
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(public - std::basic_istream) []
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extracts and discards characters until the given character is found
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(public - std::basic_istream) []
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extracts blocks of characters
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(public - std::basic_istream) []

(public - std::basic_istream) []
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returns number of characters extracted by last unformatted input operation
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(public - std::basic_istream) []

(public - std::basic_istream) []

(public - std::basic_istream) []
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synchronizes with the underlying storage device
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(public - std::basic_istream) []

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(public std::basic_istream) []


std::basic_ios

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char_type CharT
traits_type Traits
int_type Traits::int_type
pos_type Traits::pos_type
off_type Traits::off_type
, .. /
(public - std::basic_ios) []
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(public - std::basic_ios) []
,
(public - std::basic_ios) []
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checks if a non-recoverable error has occurred
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(public - std::basic_ios) []
, ( fail())
(public - std::basic_ios) []
( C++11)( C++11)
 ( !fail())
(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

(public - std::basic_ios) []

std::ios_base

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(public - std::ios_base) []

(public - std::ios_base) []

(public - std::ios_base) []

(public - std::ios_base) []

(public - std::ios_base) []

(public - std::ios_base) []

(public - std::ios_base) []
[static]
 , pword() iword()
(public static - std::ios_base) []
long
(public - std::ios_base) []
void*
(public - std::ios_base) []

(public - std::ios_base) []
[static]
 , - C C++
(public static - std::ios_base) []

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stream exception
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(public std::ios_base) []
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initializes standard stream objects
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(public std::ios_base) []

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[]
app []
binary []
in []
out []
trunc []
ate []
noreplace (C++23) []

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[]
dec / (. std::dec)[]
oct / (. std::oct)[]
hex / (. std::hex)[]
basefield dec | oct | hex. []
left ( (. std::right))[]
right ( (. std::left))[]
internal ( (. std::internal))[]
adjustfield left | right | internal. []
scientific , , fixed (. std::scientific)[]
fixed , , scientific (. std::fixed)[]
floatfield scientific | fixed. []
boolalpha bool - (. std::boolalpha)[]
showbase , , , / (. std::showbase)[]
showpoint (. std::showpoint)[]
showpos + (. std::showpos)[]
skipws (. std::skipws)[]
unitbuf (. std::unitbuf)[]
uppercase / (. std::uppercase)[]

( ) []

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[]
goodbit []
badbit []
failbit / ( )[]
eofbit []

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[]
beg []
end []
cur []

( ) []

() []

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