STL vector question

std::string handles embedded nulls just fine, and will convert to a vector for you.

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How appropriate. You fight like a cow.

First, resize the vector so it has enough space to hold your string.

message.resize(10);

Then I prefer to use std::copy instead of memcpy. std::copy is in the algorithm header.

char *msg = "1234\06789";
std::copy(msg, msg+10, message.begin());

And std::string can handle null characters in the middle of the string.

Whoa nelly! Abusing STL like that does give me physical pain

Seriously, what exactly are you trying to do? You can''t use a vector like an array. Even if it is implemented like that (most of the time it is, but...), using it like that is really bad programming because it relies on underlying implementation and breaks encapsulation. A vector is supposed to be a collection of objects, not a region of continuous memory.

If you want to copy something from a vector to another STL container you can use copy

copy(message.begin(), message.end(), other_container.begin());
 

To do something else you''d probably write a loop like

for(vector::const_iterator character = message.begin(); charachter != message.end(); ++character)
{
  some_buffer += character; // ? or something?
}  

You can also replace all the nulls in your strings by a special character (there are STL algorithms for this too, easy), and then use string instead.

quote:

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Original post by Jedyte You can also replace all the nulls in your strings by a special character (there are STL algorithms for this too, easy), and then use string instead.

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No need to do that. STL string handles embedded nulls.

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How appropriate. You fight like a cow.

really? I never knew...