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Closed 10 years ago.
what's the logic behind the calculator widget. i want to build it in gtk+.
First, don't listen to anyone who says that this is trivial.
Second, I'm going to assume that you really mean something like "How do I convert the user input to an internal expression structure which I can use to calculate the answer?". Well, Wikipedia has a good article (here) on converting infix (human readable) notation, which is what most modern calculators use (e.g you can write 1 + 2 instead of + 1 2), to the more computer appropriate polish (prefix) notation.
Third, if you don't know GTK+ yet, start here.
Hope this helps.
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Closed 9 years ago.
I have a task of searching for opcode bytes in a PE file and checking whether a specified opcode byte sequence (constant and predefined) is present in the PE file. I have come across numerous examples online, but the solutions are mostly in C# or Python; however, my requirements are based in C language.
Please tell me how can I check and compare opcode byte values in a PE file by writing a simple program in C. Any help will be greatly appreciated.
Thanks.
You may take a look at ROPGadget or at rp, both software contain code that do what you want (and more).
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
I need some help answering the above question Any twiddling idea?
You'll get a lot more here: Bit Twiddling Hacks
Treat one of the inputs as a bitmask. For each bit in it that is set, you want to add the other input, shifted that many spaces left, to your result. This assumes unsigned inputs: non-2's-complement signed inputs require special treatment of the sign bit.
I think I can safely predict that this will be less efficient than the CPU's built-in multiply operation.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
When we perform substitution, can one type substitute another type?
This is too broad a question because it concerns general concepts of programming rather than specific programming language.
Thank You.
Substitution of one type for another is purely dependent on your requirement.
You can also typedef the given type or you can make your own type.
You can perform type substitution using template also
Btw your question is little incomplete to give accurate answer , what exactly you want to ask?
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Closed 11 years ago.
for sending variables to procedures what we should do in c and(or) pascal?
as i searched this work has to be done by BP( base pointer)
or rather i should say that BP do it,and one more thing is that C and Pascal are opposite of each other.
You question is entirely unclear. It would appear that you might be asking about C and Pascal calling conventions on the x86 architecture (at least your mention of BP hints at this).
If that's the case, I'd recommend you study the Wikipedia page on x86 calling conventions, and come back when you have specific questions.
edit You might also want to check out X86 Assembly/High-Level Languages along with the "Further Reading" links therein.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 11 years ago.
I'm coming from a script guy, used to functions within 50 lines.
And when I see frequently functions over 200 lines,I'm really having a hard time reading it.
Is this normal at all?
There is nothing in the language that makes functions "long" - you can write long functions in any reasonable language, and, ideally, should refactor them into smaller, more understandable and maintainable functions in most languages.