Passing strings

[Chris Davidson]

I have a bat file I am using to pass a directory name as a string to a C++
program. It all works fine unless there is a space in the directory name then
it only sees the string to the first space. For example if I pass
"C:\imagesort\unsorted images" as the directory, it sees the directory as
"C:\imagesort\unsorted\" and leaves out the "images" part. Is there amoe easy
way for C++ to see the whole string? Thanks in advance.

[cpns]

This is not an issue with Dev-C++, or even C++. It is a matter for the
operating system. For command line arguments, space is a delimiter.

The solution is to enclose the path in quotes, and the OS will pass it as a
single argument.

myprogram "C:\imagesort\unsorted images"

Clifford

[Chris Davidson]

I tried doing that and I still only get part of the directory. I only get
"C:\imagesort\unsorted." as what is passed. Here is what I have in the code
for main:

int main(int argc, char* argv)
{
stringstream ss;
string nameOfDirectory;
ss << argv;
ss >> nameOfDirectory;

nameOfDirectory = nameOfDirectory + "\";
cout << nameOfDirectory << endl;

}

What am I doing wrong? I am sure it is in the argument passing but I am not
sure what I need to do.

[cpns]

Read the documentation for std::stringstream, specifically for . You will
observe that white-space is a delimiter for formatted input.

your code is overcomplicated in any case; you can initialise a std::string
with a C-string, so there is no need for all that stringstream nonsense.

int main(int argc, char** argv)
{
string nameOfDirectory( argv ) ;

nameOfDirectory = nameOfDirectory + "\";
cout << nameOfDirectory << endl;
}

Also use the code markup correctly. Paste the text, select it, and click the
code mark-up button to stop the code being rendered unreadable! Use the
Preview pane beneath the message box to see how your post will end up. Then
read and . Unfortunately SourceForge's markup is still buggy, but can do
better than your post.

: http://www.cplusplus.com/reference/iostream/ostream/operator%3C%3C/
: http://www.codinghorror.com/blog/archives/001306.html
: http://daringfireball.net/projects/markdown/syntax

[Chris Davidson]

Thanks for the code, it worked like a charm. Sorry ofr the posting of the
code, next time I will use the code mark-up button.

[cpns]

Sorry ofr the posting of the code,
next time I will use the code mark-up
button.

That is ok, for years Sourceforge has suffered from lack of code mark-up, and
then when they finally implement, no one uses it, and the result can be worse
than no mark-up (because the mark-down syntax uses some very simple constructs
that tend to exist in plain text in any case - such as indent four spaces for
code). So I am on a one-man campaign to promote its correct use!