fcntl.h options and valuesyou probably do not have write (and/or execute) permissions in the directory where you are compilin...
fread error (reading a random access file sequentially)lname is a cingle character, not an array of characters you print lname with %s as a NULL-termina...
finding out prime-numbersI would do it like this: (1) build a map of prime numbers, for instance the first 10,000 primes or ...
cant understand Virtual destructors and no constructors difference?...if you have a hierarchy of parent/child classes, you need to call first the destructor of the lowes...
tool for converting c cyntax to c++ syntaxThis is a non-issue - both versions above are perfectly valid C++ Why don't you write a program t...
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