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<div class="moz-cite-prefix">Ja proste na tyhle prevody jdu pres
ukazatele, takze bych to udelal zase takhle (nezkouseno)<br>
<br>
VentilSet (*((_SetBitPole*)&TMP));<br>
<br>
Proste se vezme adresa promenne TMP operatorem &, ukazatel na
cokoli jde pretypovat na ukazatel na cokoli jineho, cili i na
union a pak se operatorem dereference * zase ziska objekt na
odkazovane adrese (uz pretypovany). Mozna to jde i jednoduseji,
ale ja takhle prevadim i typy z neznaminkovych na znamenkove,
napr. v komunikacnich paketech, kdyz UINT uvnitr obsahuje hodnotu
se znamenkem, napr.: float fTempSecIn =
(float)*(short*)&ProcImgRO.r.tempSecInp100; <br>
<br>
<span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"></span><br>
Dne 12.1.2013 21:34, Miroslav Draxal napsal(a):<br>
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<title>Re: pole bitového pole v C</title>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hmm,
přiznávám, že tomu nehovím, neumím to přečíst. Nic. Ráno se
k tomu vrátím, a budu se to snažit pochopit. Pro dnešek
ještě jednu věc.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Mějme
podprogram<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">void
VentilSet (_SetBitPole CisloVentilu)<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">kde
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">typedef
union {<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
char value;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
struct {<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
unsigned CisloBitu : 6;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
unsigned SetClr : 1;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
} bits;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">}
_SetBitPole;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Pokud
budu mí char TMP<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Jak
to dostanu do volání toho podprogramu.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">VentilSet(TMP)
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Stále
se jedná o 1byt.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Je
mi jasné že na začátku vytvořit TMP jako _ SetBitPole<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Přetypování
char na union nejde. Jak na to? Míra<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
<a class="moz-txt-link-abbreviated" href="mailto:hw-list-bounces@list.hw.cz">hw-list-bounces@list.hw.cz</a>
[<a class="moz-txt-link-freetext" href="mailto:hw-list-bounces@list.hw.cz">mailto:hw-list-bounces@list.hw.cz</a>] <b>On Behalf Of </b>Jaroslav
Buchta<br>
<b>Sent:</b> Saturday, January 12, 2013 8:27 PM<br>
<b>To:</b> HW-news<br>
<b>Subject:</b> Re: pole bitového pole v C<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Takhle mi to AVR C sezere: (jeste jsem
musel doplnit zavorky)<br>
<br>
char byt;<br>
<br>
typedef union bytX<br>
<br>
{<br>
<br>
char value;<br>
<br>
unsigned bit0 : 1;<br>
<br>
}_byt;<br>
<br>
int main (void)<br>
{<br>
<br>
(*((_byt*)&byt)).bit0 = 1;<br>
<br>
<br>
<o:p></o:p></p>
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<br>
<br>
__________ Informace od ESET NOD32 Antivirus, verze databaze 7887
(20130112) __________<br>
<br>
Tuto zpravu proveril ESET NOD32 Antivirus.<br>
<br>
<a moz-do-not-send="true" href="http://www.eset.cz">http://www.eset.cz</a><br>
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