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Join Date: Jul 2008
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Newbie Poster
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Originally Posted by joshmo 
What didnt you understand?
Erm, I am a bit confused about this bit (hope I have quoted the code properly)
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CPP Syntax (Toggle Plain Text)
string str = "Hello";char *cstr = &str[0];string str = "Hello";
char *cstr = &str[0];
Also this way the pointer isn´t const unlike the return value from the string::c_str() function.
(The only problem with this is that it is not a seperate char array, anything you change in cstr will also change in str).
I can remember reading something about only needing the first element of a character array when using pointers, or something similar and I think that is important here but I am more confused about char vs char* in general. I don't understand why it is necessary to use pointers here since to my untrained eye strings and arrays seem to be almost equivalent apart from the [] and the null pointer.
Also if someone could give me a quick explanation of that std:"something here" thing. I see it all over and it seems to be pretty fundamental but I haven't come across it any of the things I was taught or the beginners information I have read. From what I can see (probably wrong) it seems to be like an alternative to a header file. But isn't a header file more convenient? You only have to type it once and the code is much easier to follow (imo).
Sorry for jabbering on a bit. Everyone here seems very helpful
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Posting Whiz in Training
Everyone has a different way of writing their codes. What you may find long may be easy for someone else. I dont think from what you originally wanted pointers would be of alot of help but it can be done to.
>>Also if someone could give me a quick explanation of that std:"something here" thing
This can be used if the statement "using namespace std" has not been included in the code. All the files in the C++ standard library declare all of its entities within the std namespace. That is why someone can do something like this
>>Also if someone could give me a quick explanation of that std:"something here" thing
This can be used if the statement "using namespace std" has not been included in the code. All the files in the C++ standard library declare all of its entities within the std namespace. That is why someone can do something like this
std::cout<<"Hello";
Last edited by joshmo : Jul 24th, 2008 at 1:43 pm.
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Thanks joshmo.
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