Table of Contents
What is the relationship between a stream pointer and buffer area?
2 Answers. A stream is either a source (input stream) or sink (output stream) of data, that is available (or provided) in time (as opposed to all at once). A buffer is an array (a piece of memory) that is used to store data temporarily.
What is a file pointer in C?
File pointer is a pointer which is used to handle and keep track on the files being accessed. A new data type called “FILE” is used to declare file pointer. This data type is defined in stdio. h file. Once file is opened, file pointer can be used to perform I/O operations on the file.
What is an open stream in C?
12.3 Opening Streams. The fopen function opens a stream for I/O to the file filename , and returns a pointer to the stream. The opentype argument is a string that controls how the file is opened and specifies attributes of the resulting stream.
Why buffering is used in lexical analysis?
The input character is thus read from secondary storage, but reading in this way from secondary storage is costly. hence buffering technique is used. A block of data is first read into a buffer, and then second by lexical analyzer.
What is stream buffer?
Stream buffers, also known as riparian buffers, are vegetated areas on either side of a stream. or river. When functioning properly, buffers protect the waterbody from the impacts of human activity.
What is file pointer with example?
For C File I/O you need to use a FILE pointer, which will let the program keep track of the file being accessed. For Example: FILE *fp; To open a file you need to use the fopen function, which returns a FILE pointer.
What are pointer files?
A “pointer” file has the . MDC extension and contains pointers to the tables in which the data is stored. The . MDC file is a PC based file stored in the PowerCubes directory as specified in the Preferences dialog on the PC, or as specified by the CubeSaveDirectory user preference on the server.