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Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...nline S into T, 's' has to be compact in memory
char b;
};
This also means that moving some fields from S to a separate struct disables some optimizations:
// Cannot fully optimize S
struct BC { int b; char c; };
struct S {
char a;
struct BC bc;
char d, e;
};
Because most C compi...
if checkbox is checked, do this
...k",function(){
if(typeof(check_holder)=="undefined"){
//this means that it is the first time and the check is going to be checked
//do something
check_holder=1; //indicates that the is checked,it is in checked state
}
else if(check_holder==1){
//do...
What does it mean when MySQL is in the state “Sending data”?
What does it mean if the Mysql query:
2 Answers
2
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Common MySQL fields and their appropriate data types
... that (with databasing) just because something looks like a number doesn't mean it is or should be treated as such...
– da5id
Dec 10 '08 at 1:07
14
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Is it possible to GROUP BY multiple columns using MySQL?
...
Yes, but what does grouping by more two columns mean? Well, it's the same as grouping by each unique pair per row. The order you list the columns changes the way the rows are sorted.
In your example, you would write
GROUP BY fV.tier_id, f.form_template_id
Meanwhile, th...
How to get the insert ID in JDBC?
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you mean BATCHID
– MoolsBytheway
Apr 3 '18 at 20:20
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Change One Cell's Data in mysql
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@Brian Hooper: I do need to change the value, I mean to ask whether I can do this: UPDATE mytable SET column1 = new_value WHERE column1 = old_value; ??
– weefwefwqg3
Jan 24 '18 at 14:22
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Add a reference column migration in Rails 4
...rential integrity; relational databases come to our rescue here. What that means is that we can add foreign key constraints at the database level itself and ensure that database would reject any operation that violates this set referential integrity. As @infoget commented, Rails 4.2 ships with nativ...
Pythonic way to create a long multi-line string
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@200OK you mean after '?
– kon psych
Jun 15 '14 at 6:14
3
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What does mc:Ignorable=“d” mean in WPF?
What does mc:Ignorable="d" mean in WPF?
3 Answers
3
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