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Published on 2010-05-08T05:10:15Z
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2010/05/08
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Are these two the same
char const *pcc2 = "hello";
const char *pcc2 = "hello";
and how can this be valid
const double & val = 66.6;
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In this insightful article, one of the Qt programmers tries to explain the different kinds of smart pointers Qt implements. In the beginning, he makes a distinction between sharing data and sharing the pointers themselves:
First, let’s get one thing straight:
there’s a difference between sharing
…
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My code has an interface like
class IExample { ~IExample(); //pure virtual methods ...};
a class inheriting the interface like
class CExample : public IExample { protected: CExample(); //implementation of pure virtual methods ... };
and a global function to create object of this class -
createExample(…
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i have two pointers,
char *str1;
int *str2;
if i look at the size of both the pointers lets assume
str1=4 bytes
str2=4 bytes
str1++ will increment by 1 byte
but if str2++ will increment 4 byte
could anybody tell e the concept behind this?
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HI,
I have this query about smart pointers.
I heard from one of my friends that smart pointers can almost always replace raw pointers.
but when i asked him what are the other cases where smart pointers cannot replace the raw pointers,i did not get the answer from him.
could anybody please tell…
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In a C++ program that doesn't contain legacy C code, is there a guideline regarding the maximum number of levels of indirection that should be used in the source code? I know that in C (as opposed to C++), some programmers have used pointers to pointers for a multiple dimension array, but for the…
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I want to learn C++ by using Vim and MinGW as compiler. I'm interesting at "C++ Primer (4th Edition)" and "C++ Primer Plus (5th Edition)" but I don't know how about it different. It has no book store that I can review those books, so I want to know, what is the different between those book and which…
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I have a Computer Science degree (long2 time ago) .. I do know Java OOP but i am now trying to pick up C++. I do have C and of course data structure using C or pascal. I have started reading Bjarne Stroustrup book (The C++ Programming Language - Special Edition) but find it extremely difficult esp…
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Ok, so I don't want you to do my homework for me, but I'm a little lost with this final assignment and need all the help I can get. Learning about programming is tough enough, but doing it online is next to impossible for me... Now, to get to the program, I am going to paste what I have so far. This…
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In unmanaged c++ dll i have a function which takes constant std::string as argument
Prototype : void read ( const std::string &imageSpec_ )
I call this function from managed c++ dll by passing a std::string.
When i debug the unmanaged c++ code the parameter imageSpec_ shows the value correctly…
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After more than a few questions about deciding on C++ books I thought we could make a better community wiki version. Providing QUALITY books and an approximate skill level. Maybe we can add a short blurb/description about each book that you have personally read / benefited from. Feel free to debate…
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