NTA-NET (UGC-NET) Computer Science & Applications (87) Programming in C and C Plus Plus-C Plus Plus Programming Study Material (Page 18 of 54)
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Streams and Files
Streams and Files
C and C ++ views each file simply as a sequential stream of bytes. Each file ends either with an end-of-file marker or at a specific byte number recorded in a system-maintained, administrative data structure. When a file is opened, a stream is associated with it.
In C all input and output is done with streams. Stream is nothing but the sequence of bytes of data. A sequence of bytes flowing into program is called input stream. Likewise, the sequence of bytes which are flowing out of the program is ca…
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RTTI (Run Time Type Information)
Introduction
- RTTI or Run Time Type Information is another feature that allows flexibility to the C ++ programmer. RTTI is used to find out the type of an object at runtime. This is a very handy tool for making sure the object type is exactly learned before any assignment is made. We have already seen the consequences of assigning a base class object to derive and a derived class object to the base. This system, being a runtime component, impacts the performance of the system to such a notable extent that it is usually kept disabled by default. If we want our solution to u…
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