O_CREAT | O_EXCL with ofstream

[Hervé Eychenne]

 Hi,

I used to use:
 int fd = open("file", O_CREAT |Â O_EXCL);
 ofstream os(fd);
but ofstream::ofstream(int fd) has also been deprecated (sigh), so
I see no way anymore to atomically ensure that a file was not already
existing when creating a new one.
I've searched everywhere on the Web, and I could only find a
reference of a ios_base::noreplace which does not seem to exist.

So how do I get an ofstream while ensuring atomicity? (O_CREAT |Â O_EXCL behaviour)
Any clue?

 Herve

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(°=  Hervé Eychenne
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