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Is there a typical state machine implementation pattern?
...ant to drive your FSM, so you could incorporate the action of reading next char into the the macro itself:
#define FSM
#define STATE(x) s_##x : FSMCHR = fgetc(FSMFILE); sn_##x :
#define NEXTSTATE(x) goto s_##x
#define NEXTSTATE_NR(x) goto sn_##x
now you have two types of transitions:...
Difference between 2 dates in SQLite
...day(DateCreated). The former does not account for DST days and will add an extra hour to created dates in Mar-Nov. The latter actually does account for it. stackoverflow.com/questions/41007455/…
– vapcguy
Dec 8 '16 at 19:36
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Why should we typedef a struct so often in C?
...me as a non-tag name is in (POSIX or Unix) program with the int stat(const char *restrict path, struct stat *restrict buf) function. There you have a function stat in the ordinary name space and struct stat in the tag name space.
– Jonathan Leffler
Jun 5 '16 a...
jQuery .data() does not work, but .attr() does
...ia .data() will return an Object while retrieval via .attr() will return a string. See jsfiddle example.
Since .data() does extra processing jQuery stores the results of attribute evaluation in $.cache - after all, once a data attribute has been evaluated it would be wasteful to re-evaluate on ever...
Using Font Awesome icon for bullet points, with a single list item element
...
You don't need the extra markup: li:before can have a different font-family than the li itself.
– cimmanon
Sep 17 '12 at 23:48
...
C++ sorting and keeping track of indexes
...mparator, or automatically reorder v in the sort_indexes function using an extra vector.
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What is the http-header “X-XSS-Protection”?
...;script src="framebuster.js" and the browser will automatically remove the string <script src="framebuster.js" from the actual page source. Note that the rest of the page continues run and the attacker just removed this part of page security. In practice, any JS in the page source can be modified...
LogCat message: The Google Play services resources were not found. Check your project configuration
...google.android.gms.common.GooglePlayServicesUtil.class. The aforementioned string appears only in one place:
public static int isGooglePlayServicesAvailable(Context context) {
PackageManager localPackageManager = context.getPackageManager();
try {
Resources localResources = context....
Why do we always prefer using parameters in SQL statements?
...ase, it looks like you're using .NET. Using parameters is as easy as:
C#
string sql = "SELECT empSalary from employee where salary = @salary";
using (SqlConnection connection = new SqlConnection(/* connection info */))
using (SqlCommand command = new SqlCommand(sql, connection))
{
var salaryP...
SQL Query Where Field DOES NOT Contain $x
...st
SELECT a FROM x WHERE x.b NOT IN (1, 2, 3, 6);
If you are searching a string, go for the LIKE operator (but this will be slow):
-- Finds all rows where a does not contain "text"
SELECT * FROM x WHERE x.a NOT LIKE '%text%';
If you restrict it so that the string you are searching for has to st...