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t Object]User: What does static variable mean? User: What is a pointer? User: What is a structure?
Weegy: Structure is defined as: 1. A thing constructed; a complex entity constructed of many parts; 2. The manner of construction of something and the arrangement of its parts. [ 3.he complex composition of knowledge as elements and their combinations; "his lectures have no structure" # a particular complex anatomical part of a living thing; "he has good bone structure" ] User: What are macros? what are its advantages and disadvantages? User: What are macros in C language? what are its advantages and disadvantages? Weegy: Syntax macro-directive ::= #define identifier [replacement-list] #define identifier ( [identifier-list] ) [replacement-list] #undef identifier replacement-list ::= token replacement-list token Description A #define preprocessing directive [ of the form: define identifier [replacement-list] defines the identifier as a macro name that represents the replacement list. The macro name is then replaced by the list of tokens wherever it appears in the source file (except inside of a string or character constant, or comment). A macro definition remains in force until it is undefined through the use of the #undef directive or until the end of the translation unit. Macros can be redefined without an intervening #undef directive. Any parameters used must agree in number and spelling, and the replacement lists must be identical. All white space is treated equally. The replacement-list may be empty. If the token list is not provided, the macro name is replaced with no characters. If the define takes the form define identifier ([identifier-list]) replacement-list a macro with formal parameters is defined. The macro name is the identifier and the formal parameters are provided by the identifier-list which is enclosed in parentheses. The first parenthesis must immediately follow the identifier with no intervening white space. If there is a space between the identifier and the (, the macro is defined as if it were the first form ... (More)
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Asked 6/17/2009 11:18:28 AM
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