a PNG image library in C++ ?

[punksheep]

Hi guyz,
I was wondering, is there a pure C++ library that handle PNG image files ?
I only find libpng and some wrappers but no C++ library.
Your comments and observation about having a C++ library for PNG files are very much appreciated.

Thanks guyZ

[helios]

Are you asking because you're interested in writing and publishing a PNG decoder? If so, then don't. A PNG decoder is a critical attack surface for security bugs. Consider what would happen if Firefox attempts to display a PNG file that's been crafted to take advantage of a bug in the decoder to execute arbitrary code.
libpng has already been extensively tested and there's no good reason to replace it.

[punksheep]

Thank you helios.
And yes, that was an idea, just an idea : writing yes, publishing... not necessarily ^_^
I was aware of the security reasons but then, I'm wondering how good it is to use the library wrapped in C++... because then the library is compiled with a C++ compiler when used with C++ code.
And a lot of C standard library are weak with regard to security.

Well thank you ;)... I'll think about that and I'm posponing that for an undetermined period of time :D

[helios]

I'm wondering how good it is to use the library wrapped in C++... because then the library is compiled with a C++ compiler when used with C++ code.

No, the library itself is compiled by a C compiler, even when wrapped. Unless the person who wrote the wrapper doesn't have a clue of how to interoperate with C.

And a lot of C standard library are weak with regard to security.

First, some standard C functions are not by themselves buggy, it's just that it's relatively hard to use them correctly without introducing security bugs.
Second, the fact that standard C functions are difficult to use doesn't by itself make any given C program buggier. libpng might very well be using all those functions correctly, or it might not even be using them. If you didn't check the source you can't know.

[punksheep]

Ah ok. Thank you for the information.
I didn't know that there is a way to interoperate with C code in C++ ^_^ nor that the "C++ compiler" invoques the C compiler.

So... when do we start ? :oD~

[helios]

the "C++ compiler" invoques the C compiler.

I didn't say that.