CCfits::FITSUtil::auto_array_ptr< X > Class Template Reference

A class that mimics the std:: library auto_ptr class, but works with arrays. More...

#include <FITSUtil.h>

Public Member Functions
	auto_array_ptr (X *p=0) throw ()
	constructor. allows creation of pointer to null, can be modified by reset()
	auto_array_ptr (auto_array_ptr< X > &right) throw ()
	copy constructor
	~auto_array_ptr ()
	destructor.
X *	get () const
	return a token for the underlying content of *this
X &	operator* () throw ()
	deference operator
void	operator= (auto_array_ptr< X > &right)
	assignment operator: transfer of ownership semantics
X &	operator[] (size_t i) throw ()
	return a reference to the ith element of the array
X	operator[] (size_t i) const throw ()
	return a copy of the ith element of the array
X *	release () throw ()
	return underlying content of *this, transferring memory ownership
X *	reset (X *p) throw ()
	change the content of the auto_array_ptr to p

Static Public Member Functions
static void	remove (X *&x)
	utility function to delete the memory owned by x and set it to null.

Detailed Description

template<typename X>
class CCfits::FITSUtil::auto_array_ptr< X >

A class that mimics the std:: library auto_ptr class, but works with arrays.

This code was written by Jack Reeves and first appeared C++ Report, March 1996 edition. Although some authors think one shouldn't need such a contrivance, there seems to be a need for it when wrapping C code.

Usage: replace

float* f = new float[200];

with

FITSUtil::auto_array_ptr<float> f(new float[200]);

Then the memory will be managed correctly in the presence of exceptions, and delete will be called automatically for f when leaving scope.

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The documentation for this class was generated from the following file:

• FITSUtil.h