[Dev-C++] Re: (no subject)

[pErCivaL <pma...@nt...>]

> --__--__--
>
> Message: 12
> From: "Daniel Glenfield" <sp...@ho...>
> To: pw...@ia...
> Cc: jab...@ma..., dev-cpp-
>
> Given the speed of processors now, something like that can hardly be 
> called expensive can it?

...that is if you're applications are PC bound!
what if it's for embedded systems... you can't have much processor speed in 
there.


>
>> From: Per Westermark <pw...@ia...>
>> To: Daniel Glenfield <sp...@ho...>
>> CC: jab...@ma...,      <dev-cpp- 
>> us...@li...>
>> Subject: Re: [Dev-C++] (no subject)
>> Date: Thu, 3 Jul 2003 19:17:12 +0200 (CEST)
>>
>> But that ignores the problem that sizeof(temp) doesn't take into account
>> the number of characters in the buffer, only total declared size of it. 
>> As
>> such, sizeof(temp) should never be used for emitting text files unless 
>> you
>> really, really, really - did I say really? - know what you are doing.
>> strlen() is available specifically for checking the length of a string.
>>
>> In the first WriteFile() call, temp contains 2 characters, a terminating
>> zero and an unknown number of extra garbage at the end - depending on 
>> what
>> size it was declared as.
>>
>> In the second WriteFile() call, temp constans 3 characters, a 
>> terminating
>> zero and an unknown number of extra garbage.
>>
>> Besides, sprintf(temp,"\r\n","") is a bit expensive since the formatting
>> string didn't contain any formatting. That is when strcpy(temp,"\r\n")
>> should be used.
>>
>> Further, since the emitted string is a constant, why not directly emit
>> WriteFile(hFile,"\r\n",2,&dWritten,NULL);
>>
>> Any why not check the return value and the value of dWritten? And - just
>> a bit more knit-picking - dWritten should be called dwWritten since it 
>> is
>> of type double-word.
>>
>> /Per W
>>
>> On Thu, 3 Jul 2003, Daniel Glenfield wrote:
>>
>> > Hey you guys hear that? I was correct!!! Ha ha! This feels great!
>> >
>> > Cheers,
>> > Daniel
>> >
>> > >From: "Jorge Abramian" <jab...@ma...>
>> > >Reply-To: <jab...@ma...>
>> > >To: <dev...@li...>
>> > >Subject: [Dev-C++] (no subject)
>> > >Date: Thu,  3 Jul 2003 09:47:14 -0400
>> > >
>> > >Hey guys, thanks for the help,
>> > >
>> > >Actually Daniel Glenfield was write. I did not try Per W. solution 
>> that
>> > >probably would work either.
>> > >
>> > >I changed the code to the followin and it worked well:
>> > >
>> > >/////////
>> > >  for (loop=0;loop<Number_of_Points;loop++)
>> > >      {
>> > >      DWORD dWritten;
>> > >      sprintf (temp,"\r\n","");
>> > >      WriteFile(hFile, temp, sizeof(temp),&dWritten, NULL);
>> > >      sprintf (temp,"%3d",ran1[loop]);
>> > >      WriteFile(hFile, temp, sizeof(temp),&dWritten, NULL);
>> > >      }
>> > >/////////
>> > >
>> > >
>> > >
>> > >
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Data asks, "Sir, how is it that the Q can handle time and space so well and 
us so badly?" and Picard replies aphoristically, "Perhaps someday we will 
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