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How to set breakpoints on future shared libraries with a command flag
.... I'm trying to set a breakpoint on a function in a shared library (the Unix equivalent of a DLL) . My cmds.gdb looks like this:
...
Transform DateTime into simple Date in Ruby on Rails
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DateTime#to_date does exist with ActiveSupport:
$ irb
>> DateTime.new.to_date
NoMethodError: undefined method 'to_date' for #<DateTime: -1/2,0,2299161>
from (irb):1
>> require 'active_support/core_ext'
=> true
>> D...
What's the proper way to install pip, virtualenv, and distribute for Python?
... environment.
Use that bootstrap environment to create more!
Here is an example in bash:
# Select current version of virtualenv:
VERSION=12.0.7
# Name your first "bootstrap" environment:
INITIAL_ENV=bootstrap
# Set to whatever python interpreter you want for your first environment:
PYTHON=$(which...
How to disassemble one single function using objdump?
...simplest approach. You can even do it as a one-liner, like:
gdb -batch -ex 'file /bin/ls' -ex 'disassemble main'
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How to convert comma-delimited string to list in Python?
...ful though, splitting an empty string does not return what one might have expected: "".split(",") returns [""] (a list with one element, which is empty string).
– johndodo
Jan 5 '18 at 11:36
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Count all occurrences of a string in lots of files with grep
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This also works: grep -o string * --exclude-dir=some/dir/one/ --exclude-dir=some/dir/two | wc -l.
– a coder
Nov 5 '14 at 14:16
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Default constructor vs. inline field initialization
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Initialisers are executed before constructor bodies. (Which has implications if you have both initialisers and constructors, the constructor code executes second and overrides an initialised value)
Initialisers are good when you always need t...
What is the most efficient way to create HTML elements using jQuery?
...div>');
some numbers on the suggestions so far (safari 3.2.1 / mac os x):
var it = 50000;
var start = new Date().getTime();
for (i = 0; i < it; ++i) {
// test creation of an element
// see below statements
}
var end = new Date().getTime();
alert( end - start );
var e...
What is the difference between `throw new Error` and `throw someObject`?
...
Here is a good explanation about The Error object and throwing your own errors
The Error Object
Just what we can extract from it in an event of an error? The Error object in all browsers support the following two properties:
name: The na...
How to add a filter class in Spring Boot?
...ant to setup a third-party filter you can use FilterRegistrationBean.
For example the equivalent of web.xml
<filter>
<filter-name>SomeFilter</filter-name>
<filter-class>com.somecompany.SomeFilter</filter-class>
</filter>
<filter-mapping>
&l...