 Related Questions An lvalue was defined as an expression to which a value can be assigned. Is an array an expression to which we can assign a value? The answer to this question is no, because an array is composed of several Latest Answer : Array is not an lvalue..Eg.int arr[5] = {"1","2",.......};here arr[5] has memory address and now we are assinging values to this.if we write arr[5]; in any function then it will not show any error, mean array does required lvalue ... Some operating systems (such as UNIX or Windows in enhanced mode) use virtual memory. Virtual memory is a technique for making a machine behave as if it had more memory than it really has, by using disk Latest Answer : First of all there is a one sentence definition of Page Thrashing (I believe someone posted a similar answer here):Page Thrashing only comes about when you use Virtual Memory which requires an MMU and "fools" a process into believing that it ... The register modifier hints to the compiler that the variable will be heavily used and should be kept in the CPU’s registers, if possible, so that it can be accessed faster. There are several restrictions Latest Answer : If a variable is defined by using register modifier it tells to the compiler that the variable is used repetedly and that variable executes fastly. Generally register variables are defined in loop counters. This variable stored in CPU registers and access ... The benefit of using the const keyword is that the compiler might be able to make optimizations based on the knowledge that the value of the variable will not change. In addition, the compiler will try Latest Answer : A side effect benefit:Say you want to pass an argument that you do not want modified, but you do not want to pass by value.Solution pass as constant reference or pointer constant.int someFoo(myDataType const &chunkOfData);orint ... Just as qsort() was the easiest sorting method, because it is part of the standard library, bsearch() is the easiest searching method to use. If the given array is in the sorted order bsearch() is the To hash means to grind up, and that’s essentially what hashing is all about. The heart of a hashing algorithm is a hash function that takes your nice, neat data and grinds it into some random-looking Latest Answer : hash is actually using a maping function to map the items to keys, if two different items map to one key, a collision solution is needed. ... A void pointer is a C convention for “a raw address.” The compiler has no idea what type of object a void Pointer “really points to.” If you write int *ip; ip points to an int. Latest Answer : Void Pointer or Generic Pointer is the one to which any datatype can be assigned.eg.main(){ int *p; void *vp; vp=p;} ... Tags : Pointer The hardest part about using a pointer-to-function is declaring it. Consider an example. You want to create a pointer, pf, that points to the strcmp() function. The strcmp() function is declared Tags : Pointer Pointers to functions are interesting when you pass them to other functions. A function that takes function pointers says, in effect, “Part of what I do can be customized. Give me a pointer to a Tags : Pointer Both the malloc() and the calloc() functions are used to allocate dynamic memory. Each operates slightly different from the other. malloc() takes a size and returns a pointer to a chunk of memory at least
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