c++ - Why does Google name accessors and mutators after member variables? -



c++ - Why does Google name accessors and mutators after member variables? -

http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=function_names#function_names

regular functions have mixed case; accessors , mutators match name of variable: myexcitingfunction(), myexcitingmethod(), my_exciting_member_variable(), set_my_exciting_member_variable().

isn't whole point of encapsulation hide implementation details user he/she not aware of whether accessor/mutator method returns/modifies fellow member variable or not? if alter variable name or alter way it's stored within object?

edit:

if have instance variable int foo_ seems straightforward

int foo() const { homecoming foo_; }

but if add together method returns foo_ + 2, should name if bar or getbar?

int bar() const { homecoming foo_ + 2; } int getbar() const { homecoming foo_ + 2; }

if take getbar , later decide cache returned value in fellow member variable bar_, have rename method bar?

actually, point of encapsulation hide inner workings of class, not hide names of things. name of fellow member variable doesn't matter; it's level of indirection accessor or mutator provides.

having accessor gives ability alter inner workings of class (including names of fellow member variables) without breaking class's interface outside world. user of class need not concern himself implementation details, including things named within class, on the behavior of class, seen outside.

to set way, users of class should not rely on google's style guide determine whether or not modifying fellow member variable.

c++ oop coding-style encapsulation google-style-guide

Comments

Post a Comment

Popular posts from this blog

javascript - mongodb won't find my schema method in nested container -

javascript - mongodb won't find my schema method in nested container - i trying access method of schema stored within mixed container. here situation : have cases model can many different things, have schema each of these things stored in "casecontent" mixed property. var caseschema = mongoose.schema({ casecontent : {}, object : {type:string, default : "null"}, collision : {type : boolean, default : false} }); the casecontent property filled model of 1 of schemas, 1 exemple : var treeschema = new mongoose.schema({ applecount : {type : number, default : 3} }); treeschema.methods.dostuff = function (data) { console.log('hey, listen'); homecoming true; }; then, want utilize method of schema original container : caseschema.methods.dostuff = function (data) { if (this.casecontent.dostuff !== undefined) { this.casecontent.dostuff(); console.log('it worked'); } else { ...
Read more

Hibernate criteria by a list of natural ids -

Hibernate criteria by a list of natural ids - i trying create hibernate criteria using list of natural ids. saw illustration here http://docs.jboss.org/hibernate/core/3.5/reference/en-us/html/querycriteria.html#query-criteria-naturalid shows illustration querying single record: session.createcriteria(user.class) .add(restrictions.naturalid() .set("name", "gavin") .set("org", "hb")); is there improve way create criteria list of natural ids illustration below? junction junction = restrictions.disjunction() .add(restrictions.naturalid() .set("name", "gavin") .set("org", "hb")) .add(restrictions.naturalid() .set("name", "jdoe") .set("org", "rh")); session.createcriteria(user.class) .add(junction); thanks. in experience, no. reason due limitations of sql in implementations. when seek phrase in sql gets...
Read more

ios - Lagging ScrollView with UIWebview inside -

ios - Lagging ScrollView with UIWebview inside - i have uiwebview within uiscrollview lot of content. when content loaded uiwebview big, starts lag. does know how solve issue? maintain in mind lags when uiwebview's height becomes considerably big. thank in advance! if read documentation on uiwebview , states not embed uiwebview uitableview or uiscrollview . doing leads unexpected behaviour, , think experiencing first hand. sorry bearer of bad news. update - specific warning apple docs: the documentation addresses issue specifically. important: should not embed uiwebview or uitableview objects in uiscrollview objects. if so, unexpected behavior can result because touch events 2 objects can mixed , wrongly handled. apple reference on uiwebview . update 2: after doing few searches (search link, same posted in comments), came across this answer, may provide insight. monitors content offset in both uiscrollview , uiwebview via delegates, , cle...
Read more