awesmoe posted:

I've got a 64 character string containing hex digits ("aaffb0b" etc) that I want to convert to a string of decimal digits. Can anyone suggest a way to do this without handcrafting my own brutal loop, full of horrible arithmetic mistakes?

rjmccall posted:

Use an arbitrary-precision integer library like GMP, maybe.

quote:

I'm curious why you need to convert a big hexadecimal number into a big decimal number, though.

Avenging Dentist posted:

Let's not forget system("pause");

Dijkstracula posted:

Well, if you know of a better way to set breakpoints I'd love to hear it

ISO/IEC 14882:2003 §14.7.3 ¶6 posted:

If a template, a member template or the member of a class template is explicitly specialized then that specialization shall be declared before the first use of that specialization that would cause an implicit instantiation to take place, in every translation unit in which such a use occurs; no diagnostic is required.

Avenging Dentist posted:

code:

        int main()
      {
    while(true)
  {
printf("Butts\n");
  }
      }

Lurchington posted:

JVMF is notable for not having non byte-aligned fields (for example, the header's version number is 4 bits, the "year" part of the time stamp is 7 bits), and since I don't have supreme confidence in my C++ expertise, I'd like some feedback on the possible approaches I was going to use:

androo posted:

Really, though, if I declare myArray[2], is it going to have [0], [1], and [2]. Or just 0 and 1?

rjmccall posted:

It's the length of the array, not the max valid index. Indexes start at 0, so for length 2 you'll have just 0 and 1.

Seriously, you could have looked that up in any of a thousand references instead of assuming against all evidence (and counter to several posts here) that it would work the way you thought for the last however many days.

androo posted:

Really, though, if I declare myArray[2], is it going to have [0], [1], and [2]. Or just 0 and 1? I'm going to post the source code for my lovely program that I was talking about before.

Avenging Dentist posted:

Use neither. It's just a little bit of bit-shifting, and using bitsets to store multi-bit fields isn't going to give you any benefit unless the sequence of all the fields doesn't fit into an integral datatype (i.e. is greater than 64 bits).

Also, why would you use a dynamic bitset on statically-sized data?

Lurchington posted:

Avenging Dentist posted:

Also, please stop using so many globals (especially globals with single-letter names). Lexical scoping is there for a reason.

androo posted:

Yeah, I know that's pretty dangerous, but it's working for now since only one function is even accessing them at once.

Avenging Dentist posted:

Really, you should just make your own class that has a better interface. One that works like I/O streams on the bit level, for instance.

(Also, I rather doubt that name fields are unaligned, but I'm drat sure not going to read the spec.)

Lurchington posted:

these are all byte-aligned, so that's a bonus

Avenging Dentist posted:

Jewdicator posted:

How do I send keystrokes to any application of my choosing without losing focus on the current application? I want to be able to have my program type in another window while I send out emails or whatever.

awesmoe posted:

I've got a 64 character string containing hex digits ("aaffb0b" etc) that I want to convert to a string of decimal digits. Can anyone suggest a way to do this without handcrafting my own brutal loop, full of horrible arithmetic mistakes?

Gxp posted:

This seems to works fine. Encapsulate that baby in a function that takes in a string and returns ss.str() and you're good to go.

Avenging Dentist posted:

code:

for(;;)
    cout << "No" << endl;

ShoulderDaemon posted:

Now, to be fair, awesmoe did specify "a string of decimal digits" rather than "the equivalent number in base 10" so having 0x10 convert to "1 0" instead of "16" is technically solving the problem. Well, except for the space.

Avenging Dentist posted:

_{(To preempt the "huh?", he's talking about base-conversion of numbers that don't fit in a primitive type, which is non-trivial unless your two bases are perfect powers of a common base (e.g. 8 = 2³ and 16 = 2⁴).}

shrughes posted:

Your code turns the substrings "b1" and "1b" into the same thing. Do you really think that's what the other guy wanted? And your code is horrible and retarded; perhaps you should kill yourself.

Gxp posted:

Avenging Dentist posted:

http://msdn.microsoft.com/en-us/library/ms646280(VS.85).aspx (probably)

Anunnaki posted:

Most of his commentary is not very helpful, if at all. I mean, things like:

code:

	void print(ostream & out, bool moreInfo = false) const; 
	// print the value to output stream. If moreInfo is true then also print numDigits and arraySize
	// Be sure that ZERO prints correctly.
	// your operator<<() function should call print().

I have no idea what "value" this is talking about.
...
Here's the code in its entirety, if you're so inclined to read it. Is he as worthless as he seems to me, or am I just dumb and should shut up?