Mail Archives: djgpp/1999/10/07/19:13:32
| Message-ID: | <37FCEB18.CE7F0A9@arcticmail.com>
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| From: | N J Chackowsky <nick AT arcticmail DOT com>
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| Newsgroups: | comp.os.msdos.djgpp
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| Subject: | vector of vectors
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| Lines: | 47
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| Date: | Thu, 07 Oct 1999 18:48:57 GMT
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| NNTP-Posting-Date: | Thu, 07 Oct 1999 13:48:57 CDT
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| To: | djgpp AT delorie DOT com
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This is a multi-part message in MIME format.
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A while back, someone asked about simulating a 2-d array using vectors,
and I *thought* it was a simple problem. But then I tried it.
<p>Original code:
<br> int a[3][3];
<p>STL code:
<p> vector<vector<int> > a;
<p>But how do you ensure that a has three rows and columns allocated, such
that you can fearlessly execute
<p> a[2][2] = -1;
<p>for example? I'm reading Stroustrup 3rd ed. and am coming up blank,
but then, whole sections of this book are still a bit mysterious to me.
<p>Nick.
<br> </html>
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