library/cpp/protobuf/util/pb_utils.h


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#pragma once

#define UPDATE_PB_FIELD_MAX(PBMESS, FIELD, VAL) \
    if ((VAL) > (PBMESS).Get##FIELD()) {        \ 
        (PBMESS).Set##FIELD(VAL);               \ 
    } 

#define UPDATE_OPT_PB_FIELD_MAX(PBMESS, FIELD, VAL)                  \ 
    if (!(PBMESS).Has##FIELD() || ((VAL) > (PBMESS).Get##FIELD())) { \ 
        (PBMESS).Set##FIELD(VAL);                                    \ 
    }