Ho to interpret this?

Hi,

I'm tryin to use a OpenCV example that uses this code line:

Code:

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const CvScalar colors[] = \cvdefCpp{0,0,255}},{{0,255,0}},
                                  {{0,255,255}},{{255,255,0}
                                  ;

---

What I don't understand is the "cvdefCpp" text. What is and what it does?

Another problem is that the compiler shows this error: "C2017: Escape sequence not valid". Erasing the "\" character I get a "syntax error: '}'"

Thanks,

Quote:

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First of all, I don't understand what it means.

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That is what documentation is for:
http://opencv.willowgarage.com/docum...tructures.html
There you can see what CvScalar is.

Quote:

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I don't know how "{" characters are interpreted.

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Google for "initializing structs C".

the code you posted should not compile beacuse of the '\' escape.
Since the documentation of CvScalar says its a struct that holds doubles, the code is again, at best strange.

This will probably will compile, but I didn't test it (probably it would be beter to change the ints to doubles by adding a decimal point '.0':

Code:

---

const CvScalar colors[] = {{0.0,0.0,255.0,0.0},{0.0,255.0,0.0,0.0},
                                  {0.0,255.0,255.0,0.0},{255.0,255.0,0.0,0.0}} ;

---

Hi,

The problem is that I don't understand the "cvdefCpp" text befor "=". Maybe it's a simple error because removing it the program compiles and works.

Thanks,

It's a typo. It seems to be a LaTex command as it can be seen often in this file.