Dynamic allocate string array

[huohaodian]

Hi,

I have a char * mFileList[];

how can i dynamically allocate it to save some strings?

Thanks in advance

 

[huohaodian]

Hi,

I have a char * mFileList[];

how can i dynamically allocate it to save some strings? I'd like to allocate it to and array of POINTERS to char strings, some thing like char *mFileList[1000]

Thanks in advance

 

[Victor Bazarov]

I have a char * mFileList[];

how can i dynamically allocate it to save some strings?

std::vector<std::string> mFileList;

V

 

[huohaodian]

I have a char * mFileList[];

how can i dynamically allocate it to save some strings?

std::vector<std::string> mFileList;

V

I tried char * mFileList[] = new char[index]; but got a syntax error.

 

[Victor Bazarov]

[..]
I tried char * mFileList[] = new char[index]; but got a syntax error.

char **mFileList = new char*[size];

But let me reiterate, do NOT presume managing dynamic memory is
easy or recommended. Try to stick to standard containers before
you learn enough. Do

std::vector<std::string> mFileList(size);

It's basically all you need, trust me.

V

 

[Alf P. Steinbach]

* Victor Bazarov:

[..]
I tried char * mFileList[] = new char[index]; but got a syntax error.

char **mFileList = new char*[size];

But let me reiterate, do NOT presume managing dynamic memory is
easy or recommended. Try to stick to standard containers before
you learn enough.

Just a nit: I think you mean "until" you learn enough. "Before" you learn
enough implies, as I read it, that by sticking to standard containers, one may
avoid the catastrophe of learning enough about dynamic memory management.

Cheers,

- Alf

 

[huohaodian]

[..]
I tried char * mFileList[] = new char[index]; but got a syntax error.

char **mFileList = new char*[size];

But let me reiterate, do NOT presume managing dynamic memory is
easy or recommended. Try to stick to standard containers before
you learn enough. Do

std::vector<std::string> mFileList(size);

It's basically all you need, trust me.

V

Thanks a lot for the help

 

[Default User]

Hi,

I have a char * mFileList[];

This is an invalid declaration. You must either have an initializer
list or give that array a dimension.

how can i dynamically allocate it to save some strings?

Do what Victor said. Use the tools that have been developed to aid the
programmer.




Brian

 

[Jim Langston]

Hi,

I have a char * mFileList[];

how can i dynamically allocate it to save some strings?

Thanks in advance

If possible, try std::vector<std::string> mFileList;
If not possible, try std::vector<char*> mFileList;

The std::vector should be as effective as anything manaul, such as new
char*[count] and with a known value you can do:

std::vector<char*> mFileList( count );
Which will create a dynamic array of count elements of char*.

Still, std::vector<std::string> is much prefered, but it really depeneds on
your code.