{"id":15532,"date":"2022-10-12T00:47:03","date_gmt":"2022-10-11T19:17:03","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-would-passing-an-object-to-a-member-function-or-a-constructor-be-a-good-use-for-explicitly-using-a-this-pointer-closed\/"},"modified":"2022-10-12T00:47:03","modified_gmt":"2022-10-11T19:17:03","slug":"solved-would-passing-an-object-to-a-member-function-or-a-constructor-be-a-good-use-for-explicitly-using-a-this-pointer-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-would-passing-an-object-to-a-member-function-or-a-constructor-be-a-good-use-for-explicitly-using-a-this-pointer-closed\/","title":{"rendered":"[Solved] Would passing an object to a member function or a constructor be a good use for explicitly using a this pointer? [closed]"},"content":{"rendered":"

[ad_1]
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When is using the \u201cthis pointer\u201d useful in a C++ program<\/p>\n<\/blockquote>\n

When you need a pointer to the current object.<\/p>\n

One of the most often usages of this<\/code> that I have seen is to make self assignment a noop.<\/p>\n

Foo& Foo::operator=(Foo const& rhs)\n{\n   if ( this != &rhs )\n   {\n      \/\/ Assign only when the objects are different\n   }\n   return *this;\n}\n<\/code><\/pre>\n
I haven’t seen this as much but you can do the same simplification for operator==<\/code>.<\/p>\n
bool Foo::operator==(Foo const& rhs) const\n{\n   if ( this == &rhs )\n   {\n      return true;\n   }\n\n   \/\/ Do the real work for objects that are different.\n   \/\/ ...\n}\n<\/code><\/pre>\n<\/p><\/div>\n
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            <\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved Would passing an object to a member function or a constructor be a good use for explicitly using a this pointer? [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] When is using the \u201cthis pointer\u201d useful in a C++ program When you need a pointer to the current object. One of the most often usages of this that I have seen is to make self assignment a noop. Foo& Foo::operator=(Foo const& rhs) { if ( this != &rhs ) { \/\/ Assign only … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,712,397],"class_list":["post-15532","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-pointers","tag-this"],"yoast_head":"\n[Solved] Would passing an object to a member function or a constructor be a good use for explicitly using a this pointer? 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