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How do I detect unsigned integer multiply overflow?
...thing>;
int x = <something>;
if ((x > 0) && (a > INT_MAX - x)) /* `a + x` would overflow */;
if ((x < 0) && (a < INT_MIN - x)) /* `a + x` would underflow */;
// For subtraction
#include <limits.h>
int a = <something>;
int x = <something>;
if...
RESTfully design /login or /register resources?
...ble). You can have a lookup though for external/internal id conversion in order to mitigate backend requirements.
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Calling constructors in c++ without new
...d the most common way of creating new dynamic objects instead of using auto_ptr, unique_ptr, or related.
– Fred Nurk
Jan 18 '11 at 13:18
3
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How do you determine what SQL Tables have an identity column programmatically
...RTY(object_id(TABLE_SCHEMA+'.'+TABLE_NAME), COLUMN_NAME, 'IsIdentity') = 1
order by TABLE_NAME
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Programmatically open new pages on Tabs
...
You can, in Firefox it works, add the attribute target="_newtab" to the anchor to force the opening of a new tab.
<a href="some url" target="_newtab">content of the anchor</a>
In javascript you can use
window.open('page.html','_newtab');
Said that, I partially ag...
Google App Engine: Is it possible to do a Gql LIKE query?
...%")
You can do something like a startWith, or endWith if you reverse the order when stored and searched. You do a range query with the starting value you want, and a value just above the one you want.
String start = "foo";
... = ofy.query(MyEntity.class).filter("field >=", start).filter("...
Check if multiple strings exist in another string
... if x in str]
If you want to get all non-duplicate matches (disregarding order):
matches = {x for x in a if x in str}
If you want to get all non-duplicate matches in the right order:
matches = []
for x in a:
if x in str and x not in matches:
matches.append(x)
...
When to use Common Table Expression (CTE)
...erenced more than once. select top 100 * into #tmp from master..spt_values order by 1,2,3,4 select A.number, COUNT(*) from #tmp A inner join #tmp B ON A.number = B.number+1 group by A.number vs with CTE AS (select top 100 * from master..spt_values order by 1,2,3,4) select A.number, COUNT(*) from CT...
Why aren't variables declared in “try” in scope in “catch” or “finally”?
...Reader sr,
[1] class [mscorlib]System.Exception ex)
IL_0000: ldnull
IL_0001: stloc.0
.try
{
.try
{
IL_0002: ldsfld string UsingTest.Class1::path
IL_0007: newobj instance void [mscorlib]System.IO.StreamReader::.cto...
Setting environment variables on OS X
...Library/LaunchAgents/osx-env-sync.plist: Operation already in progress
In order to reload your environment variables without going through the logout/login process do the following:
launchctl unload ~/Library/LaunchAgents/osx-env-sync.plist
launchctl load ~/Library/LaunchAgents/osx-env-sync.plist
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