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How to write iOS app purely in C
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If you do decide to convert this to assembly, as per several of the suggestions, make sure to do it in ARM (regular and thumb instruction sets!) and in x86 so that it works in the simulator. Maybe also PowerPC for good measure, if you want to p...
Sorting HashMap by values [duplicate]
...exity of O(n^2) due to repeatedly looking up in values in two while loops. Converting the Entry Set to a List and then sorting the List based on a comparator would be a more efficient solution.
– picmate 涅
May 21 '16 at 2:53
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JdbcTemplate queryForInt/Long is deprecated in Spring 3.2.2. What should it be replaced by?
...d it was returning 10000000233174212. i.e. +1. I looked in the code and it converts a Double to a Long, so perhaps there is some issue with the conversion.
– mrswadge
Oct 6 '15 at 16:25
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There is already an open DataReader associated with this Command which must be closed first
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use the syntax .ToList() to convert object read from db to list to avoid being re-read again.Hope this would work for it. Thanks.
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What is “rvalue reference for *this”?
...ound to the parameter as long as in all other respects the argument can be converted to the type of the implicit object parameter.
struct test{
void f() { std::cout << "lvalue or rvalue object\n"; }
};
int main(){
test t;
t.f(); // OK
test().f(); // OK too
}
Now, onto why @Nicol's...
A non well formed numeric value encountered
... with alphanumeric data and creates a new variable with the same value but converted to an integer with the intval() function. Here is the code:
function get_config_bytes($val) {
$val = trim($val);
$last = strtolower($val[strlen($val)-1]);
$intval = intval(trim($val));
switch($last)...
What exactly is a C pointer if not a memory address?
...t that's not always the case:
6.3.2.3 Pointers
[...]
5. An integer may be converted to any pointer type. Except as previously specified, the result is implementation-defined, might not be correctly aligned, might not point to an entity of the referenced type, and might be a trap representation.
Th...
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
...scall calling convention in linux if it were the same than the general ABI convertions.
– Albert van der Horst
Jan 22 '16 at 13:04
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Should I always return IEnumerable instead of IList?
... filters, or transforms your return value. When practical, I like to avoid converting the results of LINQ-to-Objects to a concrete List or Dictionary until I have to. If my caller needs a List, that's a single easy method call away - I don't need to make that decision for them, and that makes my cod...
Scanner vs. BufferedReader
...ion of read() or readLine() could
cause bytes to be read from the file, converted into characters, and
then returned, which can be very inefficient. Efficiency is improved
appreciably if a Reader is warped in a BufferedReader.
BufferedReader is synchronized, so read operations on a Buf...