external unions

Feb 13, 2007 3 Replies
úÄÒÁ×ÓÔ×ÕÊÔÅ, All!

HÁÒÏÄ, Á ËÁË × IAR AVR 4.12A ÐÏÌÕÞÉÔØ (ÐÒÏÐÉÓÁÔØ) ÄÏÓÔÕÐ Ë ÓÌÅÄÕÀÝÅÍÕ ÓÁÂÖÕ × ÄÒÕÇÉÈ ÐÒÏÇÒÁÍÍÎÙÈ ÍÏÄÕÌÑÈ:



__no_init typedef union {struct{uchar CODE,KEY,STATE,CNT;};



struct { uchar SCAN: 5; uchar RET: 1; uchar BEEP: 1; uchar KP: 1; }; } KBR;



KBR KBRD;



÷ ÄÏËÕÍÅÎÔÁÃÉÉ ÎÁ ËÏÍÐÉÌÑÔÏÒ ÞÔÏ-ÔÏ ÎÉÞÅÇÏ ÐÏÄÈÏÄÑÝÅÇÏ ÎÅ ÎÁÛÅÌ.
÷ÓÅÇÏ ÄÏÂÒÏÇÏ. Eduard ... No tamplate
ðÒÉ×ÅÔ Eduard!

13 Feb 07 16:31, Eduard Fokin ÐÉÓÁÌ All:

EF> HÁÒÏÄ, Á ËÁË × IAR AVR 4.12A ÐÏÌÕÞÉÔØ (ÐÒÏÐÉÓÁÔØ) ÄÏÓÔÕÐ Ë ÓÌÅÄÕÀÝÅÍÕ EF> ÓÁÂÖÕ × ÄÒÕÇÉÈ ÐÒÏÇÒÁÍÍÎÙÈ ÍÏÄÕÌÑÈ:

EF> __no_init typedef union {struct{uchar CODE,KEY,STATE,CNT;};

EF> struct { uchar SCAN: 5; EF> uchar RET: 1; EF> uchar BEEP: 1; EF> uchar KP: 1; EF> }; EF> } KBR;

HÉËÁË. ëÁË ÍÏÖÎÏ ÐÏÌÕÞÉÔØ ÄÏÓÔÕÐ Ë ÎÅÉÍÅÎÏ×ÁÎÎÙÍ ÜÌÅÍÅÎÔÁÍ ÏÂßÅÄÉÎÅÎÉÑ? ôÏÌØËÏ ÐÏÉÍÅÎÏ×ÁÔØ ÉÈ. ôÏ, ÞÔÏ ÔÙ ÎÁÐÉÓÁÌ, ÜË×É×ÁÌÅÎÔÎÏ ÐÒÉÍÅÒÎÏ ÔÁËÏÊ ËÏÎÓÔÒÕËÃÉÉ:

union { char; void *; };

óÒÁ×ÎÉ:

union { char as_char; void * as_ptr; };

÷ÏÔ ÔÅÐÅÒØ ÍÏÖÎÏ ÒÁÂÏÔÁÔØ ÓÏ ÚÎÁÞÅÎÉÑÍ ÔÁËÏÇÏ ÏÂßÅÄÉÎÅÎÉÑ:

some_var.as_char = 'F'; other_var.as_ptr = malloc(100);

EF> ÷ ÄÏËÕÍÅÎÔÁÃÉÉ ÎÁ ËÏÍÐÉÌÑÔÏÒ ÞÔÏ-ÔÏ ÎÉÞÅÇÏ ÐÏÄÈÏÄÑÝÅÇÏ ÎÅ ÎÁÛÅÌ.

é ÎÅ ÄÏÌÖÅÎ ÂÙÌ. ôÁËÉÅ ×ÅÝÉ ÎÁÄÏ ÉÓËÁÔØ ÎÅ × ÄÏËÕÍÅÎÔÁÃÉÉ ÎÁ ËÏÍÐÉÌÑÔÏÒ, Á × ÄÏËÕÍÅÎÔÁÃÉÉ ÎÁ ÑÚÙË C. :) ÷ÓÅÇÏ ÎÁÉÌÕÞÛÅÇÏ, [Team PCAD 2000] áÌÅËÓÅÊ í. ... úÁ×ÔÒÁË ÓßÅÛØ ÓÁÍ, ÏÂÅÄ ÏÓÔÁר ÓÅÂÅ, Á ÕÖÉÎ - ÎÉËÏÍÕ ÎÅ ÏÔÄÁ×ÁÊ!
ðÒÉ×ÅÔ, Eduard !

13 Feb 07 , 16:31 Eduard Fokin ÐÉÓÁÌ Ë All:

EF> HÁÒÏÄ, Á ËÁË × IAR AVR 4.12A ÐÏÌÕÞÉÔØ (ÐÒÏÐÉÓÁÔØ) ÄÏÓÔÕÐ Ë ÓÌÅÄÕÀÝÅÍÕ EF> ÓÁÂÖÕ × ÄÒÕÇÉÈ ÐÒÏÇÒÁÍÍÎÙÈ ÍÏÄÕÌÑÈ:

EF> __no_init typedef union {struct{uchar CODE,KEY,STATE,CNT;};

EF> struct { uchar SCAN: 5; EF> uchar RET: 1; EF> uchar BEEP: 1; EF> uchar KP: 1; EF> }; EF> } KBR;

EF> KBR KBRD;

EF> ÷ ÄÏËÕÍÅÎÔÁÃÉÉ ÎÁ ËÏÍÐÉÌÑÔÏÒ ÞÔÏ-ÔÏ ÎÉÞÅÇÏ ÐÏÄÈÏÄÑÝÅÇÏ ÎÅ ÎÁÛÅÌ.

÷ ÄÏËÕÍÅÎÔÁÃÉÉ(ÓÔÁÎÄÁÒÔÅ) ÎÁ ÑÚÙË ÉÓËÁÌ? åÓÌÉ ÎÕÖÎÁ ÏÂÝÁÑ ÇÌÏÂÁÌØÎÁÑ ÐÅÒÅÍÅÎÎÁÑ - ÔÏ × ÉÎËÌÀÄÎÉËÅ ÅÅ ÏÂßÑ×ÌÑÅÛØ ËÁË extern KBR kbrd, Á × ÏÄÎÏÊ ÉÚ ÅÄÉÎÉà ËÏÍÐÉÌÑÃÉÉ (ÄÏÐÏÌÎÉÔÅÌØÎÏ) ÐÉÛÅÛØ ÔÏ ÖÅ ÓÁÍÏÅ, ÎÏ ÂÅÚ extern. ëÓÔÁÔÉ, Ñ ÐÒÅÄÐÏÞÉÔÁÀ ÄÅÆÁÊÎÙ ÏÄÎÉÍÉ ÂÏÌØÛÉÍÉ ÂÕË×ÁÍÉ, ÉÍÅÎÁ ÔÉÐÏ×/ËÌÁÓÓÏ× Ó ÂÏÌØÛÏÊ, Á ÐÅÒÅÍÅÎÎÙÅ É ÐÏÌÑ ÍÁÌÅÎØËÉÍÉ. þÉÔÁÂÅÌØÎÏÓÔØ ÔÅËÓÔÁ ÐÏ×ÙÛÁÅÔÓÑ.

. ó Õ×ÁÖÅÎÉÅÍ, HÉËÉÔÁ. icq:240059686, lj-user:nicka_startcev ... ÂÁÛÎÉ-×ÉÒÔÕÁÌÙ

úÄÒÁ×ÓÔ×ÕÊÔÅ, Nickita!

15 æÅ× 07 × 08:51, Nickita A Startcev ÐÉÛÅÔ Ë Eduard Fokin:

EF>> ÷ ÄÏËÕÍÅÎÔÁÃÉÉ ÎÁ ËÏÍÐÉÌÑÔÏÒ ÞÔÏ-ÔÏ ÎÉÞÅÇÏ ÐÏÄÈÏÄÑÝÅÇÏ ÎÅ ÎÁÛÅÌ.

NS> ÷ ÄÏËÕÍÅÎÔÁÃÉÉ(ÓÔÁÎÄÁÒÔÅ) ÎÁ ÑÚÙË ÉÓËÁÌ?

NS> åÓÌÉ ÎÕÖÎÁ ÏÂÝÁÑ ÇÌÏÂÁÌØÎÁÑ ÐÅÒÅÍÅÎÎÁÑ - ÔÏ × ÉÎËÌÀÄÎÉËÅ ÅÅ ÏÂßÑ×ÌÑÅÛØ NS> ËÁË extern KBR kbrd, Á × ÏÄÎÏÊ ÉÚ ÅÄÉÎÉà ËÏÍÐÉÌÑÃÉÉ (ÄÏÐÏÌÎÉÔÅÌØÎÏ) NS> ÐÉÛÅÛØ ÔÏ ÖÅ ÓÁÍÏÅ, ÎÏ ÂÅÚ extern.

âÏÌØÛÏÅ ÓÐÁÓÉÂÏ ×ÓÅÍ ÏÔ×ÅÔÉ×ÛÉÍ, ÔÁË É ÓÄÅÌÁÌ ÄÏ ÐÏÌÕÞÅÎÎÙÈ ÏÔ×ÅÔÏ×. ðÏÄÓËÁÚËÕ ÎÁÛÅÌ × "èÒÅÓÔÏÍÁÔÉÑ ÐÏ ÐÒÏÇÒÁÍÍÉÒÏ×ÁÎÉÀ ÎÁ óÉ × Unix",áÎÄÒÅÊ âÏÇÁÔÙÒÅ×,1992-95 (ÜÌ. ×ÅÒÓÉÑ). äÏ ÜÔÏÇÏ ÓÍÏÔÒÅÌ ÎÅÓËÏÌØËÏ ËÎÉÇ , × ËÏÔÏÒÙÈ ÏÂßÑÓÎÑÀÔ ËÁË ÐÉÓÁÔØ ÐÒÏÇÒÁÍÍÙ ÎÁ óÉ. ÷ ÜÔÏÊ ÏÂßÑÓÎÑÀÔ ÞÔÏ ÎÁÄÏ ÄÅÌÁÔØ, ÞÔÏÂÙ ÜÔÉ ÐÒÏÇÒÁÍÍÙ ÒÁÂÏÔÁÌÉ.

NS> ëÓÔÁÔÉ, Ñ ÐÒÅÄÐÏÞÉÔÁÀ ÄÅÆÁÊÎÙ ÏÄÎÉÍÉ ÂÏÌØÛÉÍÉ ÂÕË×ÁÍÉ, ÉÍÅÎÁ NS> ÔÉÐÏ×/ËÌÁÓÓÏ× Ó ÂÏÌØÛÏÊ, Á ÐÅÒÅÍÅÎÎÙÅ É ÐÏÌÑ ÍÁÌÅÎØËÉÍÉ. þÉÔÁÂÅÌØÎÏÓÔØ NS> ÔÅËÓÔÁ ÐÏ×ÙÛÁÅÔÓÑ.

èÍ. á Õ ÍÅÎÑ ×ÓÅ Ó ÔÏÞÎÏÓÔØÀ ÄÏ ÎÁÏÂÏÒÏÔ, ÔÏÌØËÏ ÐÅÒÅÍÅÎÎÙÅ × "ÄÒÅÂÅÚÖÁÝÅÍ" ×ÉÄÅ. ðÏËÁ ÐÏÌÅÔ ÎÏÒÍÁÌØÎÙÊ. ÷ÓÅÇÏ ÄÏÂÒÏÇÏ. Eduard ... No tamplate

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