/*?pb_common.c:?Common?support?functions?for?pb_encode.c?and?pb_decode.c.
?*
?*?2014?Petteri?Aimonen?
?*/

#include?“pb_common.h“

bool?pb_field_iter_begin（pb_field_iter_t?*iter?const?pb_field_t?*fields?void?*dest_struct）
{
????iter->start?=?fields;
????iter->pos?=?fields;
????iter->required_field_index?=?0;
????iter->dest_struct?=?dest_struct;
????iter->pData?=?（char*）dest_struct?+?iter->pos->data_offset;
????iter->pSize?=?（char*）iter->pData?+?iter->pos->size_offset;
????
????return?（iter->pos->tag?!=?0）;
}

bool?pb_field_iter_next（pb_field_iter_t?*iter）
{
????const?pb_field_t?*prev_field?=?iter->pos;

????if?（prev_field->tag?==?0）
????{
????????/*?Handle?empty?message?types?where?the?first?field?is?already?the?terminator.
?????????*?In?other?cases?the?iter->pos?never?points?to?the?terminator.?*/
????????return?false;
????}
????
????iter->pos++;
????
????if?（iter->pos->tag?==?0）
????{
????????/*?Wrapped?back?to?beginning?reinitialize?*/
????????（void）pb_field_iter_begin（iter?iter->start?iter->dest_struct）;
????????return?false;
????}
????else
????{
????????/*?Increment?the?pointers?based?on?previous?field?size?*/
????????size_t?prev_size?=?prev_field->data_size;
????
????????if?（PB_HTYPE（prev_field->type）?==?PB_HTYPE_ONEOF?&&
????????????PB_HTYPE（iter->pos->type）?==?PB_HTYPE_ONEOF?&&
????????????iter->pos->data_offset?==?PB_SIZE_MAX）
????????{
????????????/*?Don‘t?advance?pointers?inside?unions?*/
????????????return?true;
????????}
????????else?if?（PB_ATYPE（prev_field->type）?==?PB_ATYPE_STATIC?&&
?????????????????PB_HTYPE（prev_field->type）?==?PB_HTYPE_REPEATED）
????????{
????????????/*?In?static?arrays?the?data_size?tells?the?size?of?a?single?entry?and
?????????????*?array_size?is?the?number?of?entries?*/
????????????prev_size?*=?prev_field->array_size;
????????}
????????else?if?（PB_ATYPE（prev_field->type）?==?PB_ATYPE_POINTER）
????????{
????????????/*?Pointer?fields?always?have?a?constant?size?in?the?main?structure.
?????????????*?The?data_size?only?applies?to?the?dynamically?allocated?area.?*/
????????????prev_size?=?sizeof（void*）;
????????}

????????if?（PB_HTYPE（prev_field->type）?==?PB_HTYPE_REQUIRED）
????????{
????????????/*?Count?the?required?fields?in?order?to?check?their?presence?in?the
?????????????*?decoder.?*/
????????????iter->required_field_index++;
????????}
????
????????iter->pData?=?（char*）iter->pData?+?prev_size?+?iter->pos->data_offset;
????????iter->pSize?=?（char*）iter->pData?+?iter->pos->size_offset;
????????return?true;
????}
}

bool?pb_field_iter_find（pb_field_iter_t?*iter?uint32_t?tag）
{
????const?pb_field_t?*start?=?iter->pos;
????
????do?{
????????if?（iter->pos->tag?==?tag?&&
????????????PB_LTYPE（iter->pos->type）?!=?PB_LTYPE_EXTENSION）
????????{
????????????/*?Found?the?wanted?field?*/
????????????return?true;
????????}
????????
????????（void）pb_field_iter_next（iter）;
????}?while?（iter->pos?!=?start）;
????
??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-01-19?10:15??protobuf\
?????目錄???????????0??2018-01-19?10:13??protobuf\nanopb-0.3.8-windows-x86\
?????文件?????????521??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\.gitignore
?????文件????????1520??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\.travis.yml
?????文件????????1199??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\AUTHORS
?????文件?????????361??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\BUILD
?????文件???????11923??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\CHANGELOG.txt
?????文件????????3098??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\CMakeLists.txt
?????文件????????1259??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\CONTRIBUTING.md
?????文件?????????918??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\LICENSE.txt
?????文件????????3048??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\README.md
?????目錄???????????0??2017-04-25?09:01??protobuf\nanopb-0.3.8-windows-x86\docs\
?????文件?????????302??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\Makefile
?????文件???????16812??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\concepts.rst
?????文件??????117174??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\generator_flow.svg
?????文件????????5512??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\index.rst
?????目錄???????????0??2017-04-25?09:01??protobuf\nanopb-0.3.8-windows-x86\docs\logo\
?????文件???????14973??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\logo\logo.png
?????文件??????105375??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\logo\logo.svg
?????文件?????????854??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\logo\logo16px.png
?????文件????????2577??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\logo\logo48px.png
?????文件????????3836??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\lsr.css
?????文件?????????361??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\menu.rst
?????文件???????11827??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\migration.rst
?????文件???????35845??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\reference.rst
?????文件????????3938??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\docs\security.rst
?????目錄???????????0??2017-04-25?09:01??protobuf\nanopb-0.3.8-windows-x86\examples\
?????目錄???????????0??2017-04-25?09:01??protobuf\nanopb-0.3.8-windows-x86\examples\cmake_simple\
?????文件?????????614??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\examples\cmake_simple\CMakeLists.txt
?????文件?????????551??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\examples\cmake_simple\README.txt
?????文件????????2284??2017-03-06?00:28??protobuf\nanopb-0.3.8-windows-x86\examples\cmake_simple\simple.c
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