On 27/11/14 11:53, Yan wrote:
dear all,
As title, I want to modify the function of openexr.
I try to modify the source code of ImfPizCompressor.cpp, only add one
line: printf("start wavelet encoding\n");, and then build the openexr
library.
But after I build the openexr library and write an test code, the
sentence that I expect to output is not output.
So, whether the result means that I don't modify the function
successfully?
And, how can I modify the function of openexr?
You should try printing to stderr so that the output does not get cached.
#include <stdio.h>
void func()
{
fprintf( stderr, "Start wavelet encoding\n" );
}
or in C++:
#include <iostream>
void func()
{
std::cerr << "Start wavelet encoding" << std::endl;
}
Also if you are doing this on windows, you need to make sure there's a
console to output to (and not write a windows application, but a console
one).
Don't take it personally, but note that if you are having trouble with
this it is a sign that you might not be ready to change the openexr code.
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