Re: [Dev-C++] Character variables

[Ioannis V. <no...@ho...>]

-------Original Message-------=0D
 =0D
From: Per Westermark=0D
Date: =D4=E5=F4=DC=F1=F4=E7, 5 =CC=DC=F1=F4=E9=EF=F2 2003 9:39:19 =F0=EC=0D
To: Ioannis Vranos=0D
Cc: Dev-C++ Mailing List=0D
Subject: Re: [Dev-C++] Character variables=0D
 =0D
The next step of from the 32-bit case statement below would be to use a=0D
hash table.=0D
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However, how would you replace the switch statement with std::bitset?=0D
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=3D=3D> At first as i said applying the bitwise operators on a signed int=
eger is
bad magic. They are intended for unsigned integrals only. Violation of th=
is
can lead to overflows and open the door of our Universe to dragons, elves
and other bad-meaning creatures.=0D
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=0D
How i would replace the switch statement with bitset:=0D
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Let's assume we had:=0D
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bitset<32>tag(0);=0D
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// I assume you wanted this:=0D
bitset<4>buf('a'+'b');=0D
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 for (size_t i =3D 0; i < 4; i++)=0D
     tag =3D (tag << 8) | buf[i++];=0D
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switch (tag.to_ulong())=0D
{=0D
  case 'STRT': ...; break;=0D
  case 'HEDR': ...; break;=0D
  case 'DATA': ...; break;=0D
  case 'ENDF': ...; break;=0D
 }=0D
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Ioannis Vranos=0D
=0D
* Programming pages: http://www.noicys.freeurl.com=0D
* Alternative URL: http://run.to/noicys=20