I am triing to save a .txt file into an object(c++). the problem is i dont know how big it is.
in c i would do it with a evl with the malloc() function but i have no idea how to do that in c++ or how to google that issue =/
-
Probably you are beginning with C++. What tutorials have you tried?Benoit– Benoit2011-05-05 15:40:13 +00:00Commented May 5, 2011 at 15:40
-
If you can do it in C, you can do it the same way in C++.user2100815– user21008152011-05-05 15:41:44 +00:00Commented May 5, 2011 at 15:41
-
2What do you mean by "save a .txt file into an object"? Do you mean that you want to read its contents into some sort of object? Or you want a reference to that file in memory? We'll need more details on what you're actually trying to do.pattivacek– pattivacek2011-05-05 15:43:11 +00:00Commented May 5, 2011 at 15:43
Add a comment
|
5 Answers
Why not use std::ostringstream?
Or if you want to use an equivalent to malloc, use:
char *storage = new char[__size__];
....
delete[] storage;
But if your file is a binary file odds are you have a byte which is null. strlen won't work the way you expect it then.
You can also use std::string, std::vector<char> in which you can have any values and that can be converted to const char * easily.
Comments
why won't you save it as a string in a field of type std::string? try:
myObj.someString = myFile.rdbuf();
Comments
You can use the new operator in C++, or better yet one of the standard library containers.
Comments
Comments
Prefer using standard containers than raw dynamic allocation
