Thu Apr 21 2005 23:38, Alexey V Bugrov wrote to Yuriy K:
AVB>>> á ËÁË ÅÝÅ ÕÇÁÄÁÔØ, ÎÁÐÒÉÍÅÒ, ÐÒÉÞÉÎÕ ÒÅÓÅÔÁ ÐÒÏÃÅÓÓÏÒÁ É AVB>>> ÄÁÌØÎÅÊÛÉÅ ÄÅÊÓÔ×ÉÑ ËÏÎÔÒÏÌÌÅÒÁ, ÅÓÌÉ ×ÓÑ ÐÏÍÑÔØ ÏÞÉÝÅÎÁ É AVB>>> ÐÒÏÉÎÉÃÉÁÌÉÚÉÒÏ×ÁÎÁ? YK>> C ËÁËÏÊ ÒÁÄÏÓÔÉ _×ÓÑ_ ÐÁÍÑÔØ ÐÏÞÉÝÅÎÁ É ÐÒÏÉÎÉÃÉÁÌÉÚÉÒÏ×ÁÎÁ?
AVB> óÔÁÎÄÁÒÔ ÑÚÙËÁ ÃÅ ÔÒÅÂÕÅÔ ÏÂÎÕÌÅÎÉÑ ÎÅÉÎÉÃÉÁÌÉÚÉÒÏ×ÁÎÎÙÈ ÇÌÏÂÁÌØÎÙÈ AVB> ÐÅÒÅÍÅÎÎÙÈ.
ðÒÏ ËÁËÏÊ ÑÚÙË ÔÙ ÇÏ×ÏÒÉÛØ? ÷ ÓÔÁÎÄÁÒÔÅ ÑÚÙËÁ ó ÎÁÐÉÓÁÎÏ ÓÏ×ÓÅÍ ÄÒÕÇÏÅ...
6.7.8 Initialization
10 ... If an object that has static storage duration is not initialized explicitly,
then:
- if it has pointer type, it is initialized to a null pointer;
- if it has arithmetic type, it is initialized to (positive or unsigned) zero;
- if it is an aggregate, every member is initialized (recursively) according to these rules;
- if it is a union, the first named member is initialized (recursively) according to these rules.
äÌÑ ÓÐÒÁ×ËÉ. çÌÏÂÁÌØÎÙÅ ÐÅÒÅÍÅÎÎÙÅ ÉÍÅÀÔ static storage duration.
AVB> ÷ÉÄÅÎÎÙÅ ÍÎÏÀ ËÏÍÐÉÌÑÔÏÒÙ
ëÁËÉÅ ÉÍÅÎÎÏ ËÏÍÐÉÌÑÔÏÒÙ ÔÙ ×ÉÄÅÌ?
AVB> × Ó×ÏÅÍ ÓÔÁÒÔÁÐÅ ÓÎÁÞÁÌÁ ÞÉÓÔÑÔ _×ÓÀ_ ÐÁÍÑÔØ, ÐÏÔÏÍ ÚÁÐÏÌÎÑÀÔ AVB> ÉÎÉÃÉÁÌÉÚÉÒÏ×ÁÎÎÙÅ ÐÅÒÅÍÅÎÎÙÍÉ ÉÚ ÓÐÉÓËÏ× ÉÎÉÃÉÁÌÉÚÁÃÉÉ ÌÉÎËÅÒÁ. AVB> ÷ÏÔ ÔÁË ÐÒÏÓÔÅÎØËÏ É ÎÁÈÁÌÑ×Õ.
AVB> ëÁË ÔÁÍ Õ ×ÁÓ ÇÏ×ÏÒÑÔ, for example:
AVB> _startup (void) AVB> { AVB> _asm AVB>[...]
þÔÏ ÚÁ ËÏÍÐÉÌÑÔÏÒ ÇÅÎÅÒÉÔ _ÔÁËÏÅ_?
AVB>>> éÌÉ ËÏÎÔÒÏÌÌÅÒ ÒÁÂÏÔÁÅÔ ÐÏÄ ÕÐÒÁ×ÌÅÎÉÅÍ ËÁËÏÊ-ÌÉÂÏ ÏÓÉ - × ÜÔÏÍ AVB>>> ÓÌÕÞÁÅ ÓÔÁÎÄÁÒÔÎÙÊ ÓÔÁÒÔÁÐ, ËÁË ÐÒÁ×ÉÌÏ, ÐÏÄÍÅÎÑÅÔÓÑ YK>> ÎÅ ÍÅÎÅÅ ÓÔÁÎÄÁÒÔÎÙÍ
AVB> ÷ ËÁËÏÍ ÓÔÁÎÄÁÒÔÅ ÏÐÉÓÁÎ?
HÁ ÉÓÐÏÌØÚÕÅÍÕÀ ÏÓØ, ÅÓÔÅÓÔ×ÅÎÎÏ.
AVB>>> ÷ÅËÔÏÒ ÒÅÓÅÔÁ, ÐÏÞÔÉ ÔÁËÏÊ ÖÅ ×ÅËÔÏÒ ÐÒÅÒ×ÁÎÉÑ, ËÁË É ÍÎÏÇÉÅ AVB>>> ÄÒÕÇÉÅ. éÎÏÇÄÁ ÐÒÉ ÐÅÒÅÈÏÄÅ ÎÁ ÎÅÇÏ ÔÒÅÂÕÀÔÓÑ ×ÐÏÌÎÅ ÏÓÍÙÓÌÅÎÎÙÅ AVB>>> ÄÅÊÓÔ×ÉÑ, ÏÔÌÉÞÎÙÅ ÏÔ ÚÁÌÏÖÅÎÎÙÈ × ÓÔÁÎÄÁÒÔÎÏÍ ÓÔÁÒÔÁÐÅ. YK>> ëÁËÉÅ?
AVB> áÎÁÌÉÚ ÓÉÔÕÁÃÉÉ WDT-reset (ÛÔÁÔÎÏÅ ÐÏ×ÅÄÅÎÉÅ, ÎÅ ÚÁ×ÉÓ), ÁÎÁÌÉÚ ÓÉÔÕÁÃÉÉ AVB> POR/BOR, ÁÎÁÌÉÚ ÎÅËÏÒÒÅËÔÎÏÇÏ ÚÁ×ÅÒÛÅÎÉÑ ÚÁÐÉÓÉ × ÅÅÐÒÏÍ/ÆÌÅÛ ÐÏ ÒÅÓÅÔÕ AVB> (ÎÅËÏÔÏÒÙÅ ËÏÎÔÒÏÌÌÅÒÙ ÕÍÅÀÔ ÓÔÁ×ÉÔØ ÓÏÏÔ×ÅÔÓ×ÕÀÝÉÊ ÆÌÁÇ).
HÁÈÒÅÎÁ ×ÓÅ ÜÔÏ ÐÉÈÁÔØ × ÓÔÁÒÔÁÐ? 8-0
ðÒÅËÒÁÓÎÏ ÄÅÌÁÅÔÓÑ × ÏÓÎÏ×ÎÏÊ ÐÒÏÇÒÁÍÍÅ.
AVB> äÁ ÐÒÏÓÔÏ ÈÏÞÕ ÎÁ ×ÅËÔÏÒ ÒÅÓÅÔÁ ÐÏ×ÅÓÉÔØ ÏÂÒÁÂÏÔÞÉË ÎÅÍÁÓËÉÒÕÅÍÏÇÏ AVB> ÐÒÅÒÙ×ÁÎÉÑ ÏÔ ÐÅÒÅÆÅÒÉÉ.
HÕ ÄÁ, ÅÓÔØ ÒÁÚÎÙÅ ÓÐÏÓÏÂÙ ×ÙÒÙ×ÁÎÉÑ ÇÌÁÎÄ...
WBR, Yuriy.