Pointer to the associated streambuf object, which is charge of all input/output operations. Pointer to output stream that is flushed before each i/o operation on this stream. Internal arrays to store objects of type long and void*. Stack of pointers to functions that are called when certain events occur. The state flags for which a failure exception is thrown. Individual values may be obtained by calling good, eof, fail and bad. The locale object used by the function for formatted input/output operations affected by localization properties.Ĭharacter to pad a formatted field up to the field width ( width). Width of the next formatted element to insert.ĭecimal precision for the next floating-point value inserted. Objects of these classes keep a set of internal fields inherited from ios_base and ios:Ī set of internal flags that affect how certain input/output operations are interpreted or generated. This is an instantiation of basic_istream with the following template parameters: The standard object cin is an object of this type. This function does not accept any parameter, simply returns the next character in the input string. Specific members are provided to perform these input operations (see functions below). The std::basicistream::peek () used to reads the next character from the input stream without extracting it. The current seek pointer is returned in the plibNewPosition parameter.Input stream objects can read and interpret input from sequences of characters.
You can also use this method to obtain the current value of the seek pointer by calling this method with the dwOrigin parameter set to STREAM_SEEK_CUR and the dlibMove parameter set to 0 so that the seek pointer is not changed. Seeking past the end of the stream is useful for subsequent write operations, as the stream byte range will be extended to the new seek position immediately before the write is complete. It is not, however, an error to seek past the end of the stream. It is an error to seek before the beginning of the stream. IStream::Seek changes the seek pointer so that subsequent read and write operations can be performed at a different location in the stream object. The object has been invalidated by a revert operation above it in the transaction tree. For example, the result of the seek pointer is a negative offset value. The dwOrigin parameter contains an invalid value, or the dlibMove parameter contains a bad offset value. Indicates that plibNewPosition points to invalid memory, because plibNewPosition is not read. The seek pointer was successfully adjusted.Īsynchronous Storage only: Part or all of the stream data is currently unavailable. This method can return one of these values. In this case, this method does not provide the new seek pointer. For more information about values, see the STREAM_SEEK enumeration.Ī pointer to the location where this method writes the value of the new seek pointer from the beginning of the stream. The origin can be the beginning of the file ( STREAM_SEEK_SET), the current seek pointer ( STREAM_SEEK_CUR), or the end of the file ( STREAM_SEEK_END). The origin for the displacement specified in dlibMove. If dwOrigin is STREAM_SEEK_SET, this is interpreted as an unsigned value rather than a signed value. The displacement to be added to the location indicated by the dwOrigin parameter. The new location is relative to either the beginning of the stream, the end of the stream, or the current seek pointer. The Seek method changes the seek pointer to a new location.
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