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</o:shapelayout></xml><![endif]--></head><body lang=CS link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Cele je to takhle<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'>unsigned char _eeprom_read(unsigned int AdresaEEPROM);<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'>void _eeprom_read_object(unsigned int ee_addr, void *pObj, unsigned char obj_size) {<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> //unsigned char *p = obj_p;<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'> while (obj_size--) {<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> *pObj = (void) _eeprom_read(ee_addr++);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> pObj++;<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'>}<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><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Hw-list [mailto:hw-list-bounces@list.hw.cz] <b>On Behalf Of </b>Pavel Hudecek<br><b>Sent:</b> Friday, April 07, 2017 9:48 PM<br><b>To:</b> HW-news<br><b>Subject:</b> Re: ukazatel typu void to char<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'>Hlavně mi teda není jasné, k čemu je potřeba přetypovávat výsledek funkce na void.<o:p></o:p></span></p></div><div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'>PH</span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> <o:p></o:p></span></p></div><div><div><p class=MsoNormal style='background:whitesmoke'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> <a href="mailto:t.mainzer@gmail.com" title="t.mainzer@gmail.com">tomas mainzer</a> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:whitesmoke'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:whitesmoke'><span style='font-family:"Calibri","sans-serif";color:black'>>> *pObj++ = (void) _eeprom_read(ee_addr++);<o:p></o:p></span></p></div></div></div><div><div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'>nevim co na to norma (mozna to nejak definuje, rad se poucim), ale prijde mi ze kazdy uhoz v tom radku smrdi prusvihem ;-)<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'>doplneni: tak gcc ma v tom ohledu odchylku od normy C a definuje sizeof(void)==1 se vsemy dusledky pro pointerovou aritmetiku.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'>Ale pretypovani na (void) mi stale prijde divne. co takto:<br>*((unsigned char*)(pObj++)) = _eeprom_read(ee_addr++); <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'> <o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'>Dne 7. dubna 2017 19:00 Miroslav Draxal <<a href="mailto:evik@volny.cz" target="_blank">evik@volny.cz</a>> napsal(a):<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'>Pro čtení jsem to udělal takhle, sice to hlásí varování o nepředvídatelném<br>chování, ale koukl jsem na disa. a tam není žádný problém.<br>Takže jsem pro tenhle řádek vypnul hlášení varování.<br>*pObj++ = (void) _eeprom_read(ee_addr++);<br><br>Jakou paseku by tenhle kód mohl dělat? Nenapadá mě nic.<br><br>-----Original Message-----<br>From: Hw-list [mailto:<a href="mailto:hw-list-bounces@list.hw.cz">hw-list-bounces@list.hw.cz</a>] On Behalf Of Jan Waclawek<br>Sent: Friday, April 07, 2017 3:48 PM<br>To: HW-news<br>Subject: RE: ukazatel typu void to char<br><br>Hm tak ak mate zapnute aj vsetky optimalizacie, tak to je zvlastne, lebo<br>toto je bezne pouzivana paradigma.<br><br>V skutocnosti je to asi jedina uzitocna aplikacia pre void*.<br><br>V kazdom pripade vsak este stale nedoporucujem robit nic ine ako pouzit tu<br>"pomocnu" premennu.<br><br>wek<br><br><br>>Ano, poslední XC8 v1.41 pro.<br>><br>>-----Original Message-----<br>><br>>A mate tu plnu verziu prekladaca?<br>><br>>wek<br>><br>><br>>----- Original Message ---------------<br>>>Jo, jenľe kdyľ se podívám do disas. (coľ je moje váąeň, jak to dělají)<br>>>tak tam mám 3x nesmyslné předávání hodnot z ram do ram, neľ tu adresu<br>>pouľije.<o:p></o:p></span></p><div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'>>>Rád bych se tomu vyhnul.<br>>><br>>>-----Original Message-----<br>>><br>>>No len si ho pekne urobte, predidete tym zbytocnym problemom.<br>>><br>>>wek<br>>><br>>><br>>>----- Original Message ---------------<br>>>>Nechce se mi "zřizovat" pomocný ukazatel *p.<o:p></o:p></span></p></div></div></div></div></div></div></div></div></body></html>