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How to change height of grouped UITableView header?

...w *)tableView heightForHeaderInSection:(NSInteger)section { // Removes extra padding in Grouped style return CGFLOAT_MIN; } - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section { // Removes extra padding in Grouped style return CGFLOAT_MIN; } S...
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Use of #pragma in C

...etween members) in MSVC: #pragma pack(push, 1) struct PackedStructure { char a; int b; short c; }; #pragma pack(pop) // sizeof(PackedStructure) == 7 Here's how you'd do the same thing in GCC: struct PackedStructure __attribute__((__packed__)) { char a; int b; short c; }; // sizeof(Pa...
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Performance of Arrays vs. Lists

...ts; i++ ) { j = theList[i]; } chrono.Stop (); Console.WriteLine (String.Format("iterating the List took {0} msec", chrono.ElapsedMilliseconds)); chrono.Reset(); chrono.Start(); for( int i = 0; i < numberOfElements; i++ ) { j = theArray[i]; } chrono.Stop (); Console.Write...
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How to model type-safe enum types?

...to get something most closely resembling a Java Enum (i.e. with sensible toString and valueOf methods -- perhaps you are persisting the enum values to a database) you need to modify it a bit. If you had used skaffman's code: WeekDay.valueOf("Sun") //returns None WeekDay.Tue.toString //returns We...
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Django Admin - change header 'Django administration' text

... Here is an import string to add to urls.py: from django.contrib import admin – serg Jan 4 '16 at 22:00 ...
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How do I replace all line breaks in a string with elements?

...ional note: str.replace("\n", '<br />') (first argument is a regular string) will replace only first occurrence. – Serge S. Apr 15 '13 at 20:49 19 ...
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Remove last character of a StringBuilder?

When you have to loop through a collection and make a string of each data separated by a delimiter, you always end up with an extra delimiter at the end, e.g. ...
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Getting MAC Address

...8927, struct.pack('256s', ifname[:15])) return ':'.join(['%02x' % ord(char) for char in info[18:24]]) print getHwAddr('eth0') This is the Python 3 compatible code: #!/usr/bin/env python3 # -*- coding: utf-8 -*- import fcntl import socket import struct def getHwAddr(ifname): s = socke...
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ExecutorService that interrupts tasks after a timeout

...lem with the following (very crude) test program: public static void main(String[] args) throws InterruptedException { ExecutorService service = new TimeoutThreadPoolExecutor(1, 1, 10, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(), 10, TimeUnit.MINUTES); //Executo...
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Single vs double quotes in JSON

... JSON syntax is not Python syntax. JSON requires double quotes for its strings. share | improve this answer | follow | ...