Apr 15, 2016 · The empty default constructor like Widget() {}; is seen as a user defined default constructor, while Widget() = default; is not. This leads to default initialization in the former …

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Jan 6, 2010 · There's also {var-default} where default will be used only when var is undefined. If var is defined but null, default won't be used.

Nov 27, 2012 · Based on the replies posted for this question, the situation for the default constructor seems similar. Given that there is almost no difference in meaning between " …

- name: Create default user: name: "default_name" when: my_variable is not defined - name: Create custom user: name: "{{my_variable}}" when: my_variable is defined But as I mentioned, …

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Dec 5, 2012 · Is it possible to set default values for some struct member? I tried the following but, it'd cause syntax error: typedef struct { int flag = 3; } MyStruct; Errors: $ gcc -o testIt test.c test....

May 17, 2017 · The question is: since a default value is specified, is it necessary to also specify that the column should not accept NULL s? In other words, doesn't DEFAULT render NOT …

this.value = default!; as I saw in a different question here, then it compiles just fine. But I don't understand what the ! is doing here, and it's pretty hard to google, since google seems to …