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How to pinch out in iOS simulator when map view is only a portion of the screen?
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Try double tapping with the "Option" key pressed. On the iPhone this causes the MKMapView to zoom out.
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Why does flowing off the end of a non-void function without returning a value not produce a compiler
...ur, and in practice it's calling convention and architecture dependent. On one particular system, with one particular compiler, the return value is the result of last expression evaluation, stored in the eax register of that system's processor.
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Modify tick label text
...plots()
# We need to draw the canvas, otherwise the labels won't be positioned and
# won't have values yet.
fig.canvas.draw()
labels = [item.get_text() for item in ax.get_xticklabels()]
labels[1] = 'Testing'
ax.set_xticklabels(labels)
plt.show()
To understand the reason why you need to jump...
Passing references to pointers in C++
...nce, which C++ doesn't allow unless the reference is const.
So you can do one of either the following:
void myfunc(string*& val)
{
// Do stuff to the string pointer
}
void myfunc2(string* const& val)
{
// Do stuff to the string pointer
}
int main()
// sometime later
{
// .....
Why are arrays of references illegal?
...s so conspicuously absent from this & similar discussions - is that if one had an array of references, how would one possibly disambiguate between the address of an element & the address of its referent? The immediate objection to 'You can't put a reference in an array/container/whatever' is...
UITableView didSelectRowAtIndexPath: not being called on first tap
... the first tap because you are not deselecting anything. Once you selected one row, when you try to select a second one, the first gets deselected.
– The dude
Sep 4 '14 at 13:30
19...
How to check if hex color is “too black”?
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You have to extract the three RGB components individually, and then use a standard formula to convert the resulting RGB values into their perceived brightness.
Assuming a six character colour:
var c = c.substring(1); // strip #
var rgb = parseInt(c, 16); ...
AngularJS - Multiple ng-view in single template
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You can have just one ng-view.
You can change its content in several ways: ng-include, ng-switch or mapping different controllers and templates through the routeProvider.
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Pointer to pointer clarification
...n that pointer value to ip1, so ip1 is now "pointer to j"
We only changed one thing: the value of ip1:
i contains 5
j contains 6
ip1 contains "pointer to j"
ip2 contains "pointer to j"
ipp contains "pointer to ip1"
Why does ipp still point to ip1 and not ip2?
A variable changes when you as...
Difference between `set`, `setq`, and `setf` in Common Lisp?
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Originally, in Lisp, there were no lexical variables -- only dynamic ones. And
there was no SETQ or SETF, just the SET function.
What is now written as:
(setf (symbol-value '*foo*) 42)
was written as:
(set (quote *foo*) 42)
which was eventually abbreviavated to SETQ (SET Quoted):
(setq...