C%2b%2b Ostream Dev Null

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Libc, lib(std)c and libfmt are all linked as shared libraries to compare formatting function overhead only. Boost Format is a header-only library so it doesn't provide any linkage options. Boost Format is a header-only library so it doesn't provide any linkage options. C (Cpp) PaCloseStream - 30 examples found. These are the top rated real world C (Cpp) examples of PaCloseStream extracted from open source projects. You can rate examples to help us improve the quality of examples.

std::basic_ostreamNull
  1. They are two different code std::ostream/code objects that map to two different file descriptors of the OS (namely: 1 and 2). By default they both map to the console output, but they can be redirected in different devices or files.
  2. I'm doing something trying to involve a null output stream, i.e. A stream that just discards what goes into it. Try searching comp.lang.c for 'null stream' in Google Groups. I was interested in exactly the same thing not too long ago and I found a few previous threads that seemed to cover it. Basically you have to.
Global objects
Member functions
(C++11)
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Miscellaneous
(C++11)
Member classes
Non-member functions
basic_ostream& operator<<(short value );
basic_ostream& operator<<(unsignedshort value );
(1)
basic_ostream& operator<<(int value );
basic_ostream& operator<<(unsignedint value );
(2)
basic_ostream& operator<<(long value );
basic_ostream& operator<<(unsignedlong value );
(3)
basic_ostream& operator<<(longlong value );
basic_ostream& operator<<(unsignedlonglong value );
(4) (since C++11)
basic_ostream& operator<<(float value );

basic_ostream& operator<<(double value );

basic_ostream& operator<<(longdouble value );
(5)
(6)
basic_ostream& operator<<(constvoid* value );
(7)
(8) (since C++17)
basic_ostream& operator<<(std::basic_streambuf<CharT, Traits>* sb);
(9)
basic_ostream& operator<<(
std::ios_base&(*func)(std::ios_base&));
(10)
basic_ostream& operator<<(
std::basic_ios<CharT,Traits>&(*func)(std::basic_ios<CharT,Traits>&));
(11)
basic_ostream& operator<<(
std::basic_ostream<CharT,Traits>&(*func)(std::basic_ostream<CharT,Traits>&));
(12)

Inserts data into the stream.

1-2) Behaves as a FormattedOutputFunction. After constructing and checking the sentry object, if value is short or int, then casts it to unsignedshort or unsignedint if ios_base::flags()& ios_base::basefield is ios_base::oct or ios_base::hex. After that, casts to long in any case and outputs as in (3). If value is unsignedshort or unsignedint, casts to unsignedlong and outputs as in (3).
3-7) Behaves as a FormattedOutputFunction. After constructing and checking the sentry object, inserts an integer, floating point, boolean or generic pointer value by calling num_put::put(). If the end of file condition was encountered during output (put().failed()true), sets ios::badbit.
8) Outputs an implementation-defined string as if by *this << s, where s is a null-terminated character type string.
9) Behaves as an UnformattedOutputFunction. After constructing and checking the sentry object, checks if sb is a null pointer. If it is, executes setstate(badbit) and exits. Otherwise, extracts characters from the input sequence controlled by sb and inserts them into *this until one of the following conditions are met:
  • end-of-file occurs on the input sequence;
  • inserting in the output sequence fails (in which case the character to be inserted is not extracted);
  • an exception occurs (in which case the exception is caught).
If no characters were inserted, executes setstate(failbit). If an exception was thrown while extracting, sets failbit and, if failbit is set in exceptions(), rethrows the exception.
10-12) Calls func(*this). These overloads are used to implement output I/O manipulators such as std::endl.

[edit]Parameters

value - integer, floating-point, boolean, or pointer value to insert
func - function to call
sb - pointer to the streambuffer to read the data from

[edit]Return value

1-11)*this

[edit]Notes

C 2b 2b Ostream Dev Null Command

There are no overload for pointers to non-static member, pointers to volatile, or function pointers (other than the ones with signatures accepted by the (10-12) overloads). Attempting to output such objects invokes implicit conversion to bool, and, for any non-null pointer value, the value 1 is printed (unless boolalpha was set, in which case true is printed).

Character and character string arguments (e.g., of type char or constchar*) are handled by the non-member overloads of operator<<. Attempting to output a character using the member function call syntax (e.g., std::cout.operator<<('c');) will call one of overloads (2-4) and output the numerical value. Attempting to output a character string using the member function call syntax will call overload (7) and print the pointer value instead.

C 2b 2b Ostream Dev Null Test

[edit]Example

C 2b 2b Ostream Dev Null Key

Output:

[edit]See also

inserts character data
(function template)[edit]
performs stream I/O of strings
(function template)
performs stream input and output of bitsets
(function)
serializes and deserializes a complex number
(function template)
performs stream input and output on pseudo-random number engine
(function template)[edit]
performs stream input and output on pseudo-random number distribution
(function template)[edit]
inserts a character
(public member function)[edit]
inserts blocks of characters
(public member function)[edit]
(C++17)
converts an integer or floating-point value to a character sequence
(function)[edit]

C 2b 2b Ostream Dev Null Code

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