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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?

... by using -O2 -falign-functions=1 -falign-jumps=1 -falign-loops=1 -falign-labels=1. I have been compiling everything with these options, that were faster than plain -O2 everytime I bothered to measure, for 15 years. Also, for a completely different context (including a different compiler), I notice...
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Bootstrap: align input with button

... Use .form-inline = This will left-align labels and inline-block controls for a compact layout Example: http://jsfiddle.net/hSuy4/292/ <div class="form-inline"> <input type="text"> <input type="button" class="btn" value="submit"> </div> ....
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Android - Start service on boot

...OMPLETED" /> <application android:icon="@drawable/icon" android:label="@string/app_name"> <receiver android:name=".autostart"> <intent-filter> <action android:name="android.intent.action.BOOT_COMPLETED" /> </intent-f...
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How to get the name of the calling method?

... In Ruby 2.0.0, you can use: caller_locations(1,1)[0].label It's much faster than the Ruby 1.8+ solution: caller[0][/`([^']*)'/, 1] Will get included in backports when I get the time (or a pull request!). ...
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How to print pandas DataFrame without index

... For me the column labels come out not justified to the data (there are spaces missing at the start). Maybe because my data takes up more characters than the column label. Adding the argument justify='left' fixes it, though obviously changes th...
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How do I change the android actionbar title and icon

...ame=".MyActivity" android:icon="@drawable/my_icon" android:label="My new title" /> To enable the back button in your app use: getActionBar().setHomeButtonEnabled(true); getActionBar().setDisplayHomeAsUpEnabled(true); The code should all be placed in your onCreate so that ...
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PHP Difference between array() and []

... seems to work}. Difference is between {} and []. My code <p> <label for="post_category"> Cat 1 </label> <input type="checkbox" name="post_category{first}" value="cat1"> <br /> <label for="post_category{second}"> Cat 2 </label> <input type="che...
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How to change a field name in JSON using Jackson

... public class City { @id Long id; String name; @JsonProperty("label") public String getName() { return name; } public void setName(String name){ this.name = name; } @JsonProperty("value") public Long getId() { return id; } public void setId(Long id){ this.id = id; } } ...
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What is sr-only in Bootstrap 3?

... Screen readers will have trouble with your forms if you don't include a label for every input. For these inline forms, you can hide the labels using the .sr-only class. Here is an example styling used: .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; ...
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Drop all duplicate rows across multiple columns in Python Pandas

... What if my columns are not explicitly labelled? How do I select the columns just based on their index? – Hamman Samuel Feb 9 '17 at 21:42 2 ...