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How do I use arrays in C++?
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Might be worth it to add a note that even tho in void foo(int a[3]) a does look like one is passing the array by value, modifying a inside of foo will modify the original array. This should be clear because arrays cannot be copied, but it might be worth it to reinforce that.
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Find and replace with sed in directory and sub directories
...ce between -i and its argument, but in BSD sed there is… so BSD -i '' 's/foo/bar/' is equivalent to GNU -i 's/foo/bar/.
– paulmelnikow
Feb 18 '14 at 22:03
20
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How to set child process' environment variable in Makefile
...st pointed out, you can export individual variables with:
export MY_VAR = foo # Available for all targets
Or export variables for a specific target (target-specific variables):
my-target: export MY_VAR_1 = foo
my-target: export MY_VAR_2 = bar
my-target: export MY_VAR_3 = baz
my-target: depende...
How do you tell someone they're writing bad code? [closed]
...s better than cutting & pasting.
Explain why an array is better than $foo1, $foo2, $foo3.
Explain why global variables are dangerous, and that local variables will make life easier.
Simply whipping out a coding standard and saying "do this" is worthless because it doesn't explain to the progr...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...ssion.
Note that we can merge in with literal notation as well:
z = {**x, 'foo': 1, 'bar': 2, **y}
and now:
>>> z
{'a': 1, 'b': 3, 'foo': 1, 'bar': 2, 'c': 4}
It is now showing as implemented in the release schedule for 3.5, PEP 478, and it has now made its way into What's New in Python 3...
How can I see the assembly code for a C++ program?
...ly listing, and -ah adds "high-level source" listing):
g++ -g -c -Wa,-alh foo.cc
For Visual Studio, use /FAsc.
Peek into the binary
If you have compiled binary,
use objdump -d a.out on UNIX (also works for cygwin),
dumpbin /DISASM foo.exe on Windows.
Use your debugger
Debuggers could also...
NULL vs nullptr (Why was it replaced?) [duplicate]
...mbiguity in overloaded function resolution, among other things:
f(int);
f(foo *);
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when I run mockito test occurs WrongTypeOfReturnValue Exception
...mgroups#!topic/mockito/9WUvkhZUy90, you should rephrase your
when(bar.getFoo()).thenReturn(fooBar)
to
doReturn(fooBar).when(bar).getFoo()
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How do I call one constructor from another in Java?
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Yes, it is possible:
public class Foo {
private int x;
public Foo() {
this(1);
}
public Foo(int x) {
this.x = x;
}
}
To chain to a particular superclass constructor instead of one in the same class, use super instead of...
WiX tricks and tips
...ant it to appear in Add/Remove Programs-->
<?define ProductName = "Foo 64 Bit [Live]" ?>
<?else ?>
<?define ProductName = "Foo [Live]" ?>
<?endif ?>
<!-- Directory name used as default installation location -->
<?define InstallName = "Foo [Live]" ?>
<...