boolean

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Bool array problems in c++

Is an array of bools also \"optimized\", like a vector<bool> is? I want to make arrays of true or false, but I also don开发者_开发知识库t want the problems that some with vector<bool> to s[详细]

2023-03-19 10:38 分类：问答
JavaScript truthiness in boolean to numbers comparison

I\'m new to JavaScript and I\'m trying to learn it from internet resources. While I\'m开发者_运维知识库 aware that there will plenty of cr*p material, one thing most people seemed to agree is the trut[详细]

2023-03-19 08:41 分类：问答
Postgres - Cast to boolean

I\'m trying to update a Postgres database to set a boolean but I\'m getting the following error No operator matches the given name and argument type(s). You may need[详细]

2023-03-19 03:06 分类：问答
C99 - why are false and true defined as 0 and 1 and not as ((bool)0) and ((bool)1)?

Just stumbled across an assert, that failed, as it compared false to the returntype of a function, as the function itself returned a bool and the assert checked not only the value, but also the type o[详细]

2023-03-19 02:41 分类：问答
Toggle boolean fields from a Queryset using F objects

I\'ve tried these queries with these results: queryset.update(done=not F(\'boolean\')) {\'time\': \'0.001\', \'sql\': u\'UPDATE \"todo_item\" SET \"done\" = True\'}[详细]

2023-03-19 01:00 分类：问答
BOOL and tinyint(1) ... unsigned?

i\'ve read that the bool 开发者_StackOverflow中文版type in mysql is an alias of tinyint(1), therefore i should use tinyint[详细]

2023-03-18 15:52 分类：问答
Some P/Invoke C# to C marshalling questions working with booleans in structs

I have some problems working with boolean types and marshalling this in a struct back and forth between C# and C. I am very rusty in C but hopefully there\'s nothing crucially wrong in that part.[详细]

2023-03-18 12:09 分类：问答
Boolean Attributes with jQuery is inconsistent accross Browsers

I create an attribute called \"hasAgreed\" to check whether I should treate or dismiss the values of a form.I used this instead of relying on the click of the OK button since I want to be able to clos[详细]

2023-03-17 04:51 分类：问答
Can't cast int to bool

I\'m facing the problem that C# in my case can\'t cast the number 1 to bool. In my scenario (bool)intValue doesn\'t wo开发者_如何学Gork. I get an InvalidCastException. I know I can use Convert.ToBoole[详细]

2023-03-16 23:21 分类：问答
Is there anything like "std::and" or "std::or"?

Given a container of boolean values (An example is std::vector<bool>), is there a standard function that returns true if all the values are true (\"and\") or true if at least one value is true ([详细]

2023-03-16 09:02 分类：问答