why doesn''t c have nested functions, Computer Engineering

It's not trivial to execute nested functions such that they have the proper access to local variables in the having function(s), so they were deliberately left out of C as a simplification. (gcc does permit them, as an extension.) For many potential uses of nested functions (e.g. qsort comparison functions), an adequate if slightly difficult solution is to use an adjacent function with static declaration, communicating if essential via a few static variables. (A cleaner solution, by unsupported by qsort, is to pass around a pointer to a structure containing the essential context.)              

 

 

Posted Date: 4/8/2013 3:08:58 AM | Location : United States







Related Discussions:- why doesn''t c have nested functions, Assignment Help, Ask Question on why doesn''t c have nested functions, Get Answer, Expert's Help, why doesn''t c have nested functions Discussions

Write discussion on why doesn''t c have nested functions
Your posts are moderated
Related Questions
Explain about the Acoustic tablet Acoustic (or sonic) tablet use sound waves to detect a stylus position. Either strip microphones or point microphones can be used to detect th

Use tabs to bring some structure into your function body if(nPos > 1) then nRetrun = True else nRetrun = False end if

The following switching functions are to be implemented using a Decoder f 1   = ∑ m(1, 2, 4, 8, 10, 14)   f 2   = ∑ m(2, 5, 9, 11)   f 3   = ∑ m(2, 4, 5, 6, 7) The minimum configur

Q. Show list files by Dir command? The Dir command can also be used to list files from the exacting directory. For example, the list of files present in the WORD directory in d

Q. Efficiency - Metrics for performance evaluation? The other significant metric employed for performance measurement is efficiency of parallel computer system it implies that

Sript-Fu is the first GIMP scripting extension. Extensions are split processes that communicate with the GIMP in the similar way that plug-ins do. The distinction is that extension

What are the concerns for growth of e-commerce in India? Government as Facilitator for the growth of e-commerce has taken following steps: a. Promotion of competitive dataco

Determine the function of Dynamic model Dynamic model: Dynamic model describes how system responds to external events. The implementation of the control flow in a program must

Q. Describe the Limitation of FAT16? DOS designers decided to use clusters with as a minimum four sectors in them (so a cluster size of at least 2KB) for all FAT16 hard disks.

Explain bit pair recoding with an example? Ans: Bit pair recoding halves the maximum number of summands. Group the Booth-recoded multiplier bits in pairs and see the following