Re: STL vector resize on MSVC broken?
Drawknob wrote:
Changing the ordering of the resizes below gives me different results--
if it's this way it works, if I swap some lines, it results in
corrupted data.
All arrays start off at size 0 except tuftGuides, which has some data
and I expand it here. I read on the Web that resize() to larger size
adds elements while keeping the existing ones--but this is not
happening depending on how I order the below >:(
The vectors hold either floats or structs of several floats, where the
structs have default and copy constructors and assignment operators
defined and working fine.
There's no issue in Debug build. I'm using Visual Studio 2008.
There's no exception thrown. A few of the vectors are class members,
and the other few are local to the function.
try
{
tuftGuides.resize(numTufts * LAYERS);
invTuftSz.resize(numTufts);
sineFactors.resize(numTufts);
hairSecs.resize(numHairs * LAYERS);
hairDia.resize(numHairs * LAYERS);
hairOffsets.resize(numHairs * LAYERS);
nears.resize(numHairs);
}
catch (...)
.....
What do I do?
You post more of your code, that what. How do you really expect us to
give you any recommendation if we can't see any declarations/definitions
of your objects, nor what's coming before them, or after them... It
sounds like memory corruption, but there is no way to tell for sure.
It's very likely the problem is not due to a "broken vector resize" in
MSVC (after all the library has been around for more than a decade now
and from the millions of programmers using it every day somebody would
have stumbled upon this already), but due to some bad memory management
on your part. Try narrowing your problem down by removing (one by one)
parts that you don't think related to your problem. Perhaps during that
removal you will find which part, when removed, makes the error go away.
Then examine that part closely.
V
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