arturlector

Вопросы на собеседование iOS разработчика (дополненное издание):

General:

• Что такое полиморфизм?

• Что такое *инкапсуляция? Что такое *нарушение инкапсуляции?

• Чем абстрактный класс отличается от интерфейса?

• Расскажите о паттерне MVC. Чем отличается пассивная модель от активной?

iandees

I've been interested in computer vision for a long time, but I haven't had any free time to make any progress until this holiday season. Over Christmas and the New Years I experimented with various methodologies in OpenCV to detect road signs and other objects of interest to OpenStreetMap. After some failed experiments with thresholding and feature detection, the excellent /r/computervision suggested using the dlib C++ module because it has more consistently-good documentation and the pre-built tools are faster.

After a day or two figuring out how to compile the examples, I finally made some progress:

Compiling dlib C++ on a Mac with Homebrew

1. Clone dlib from Github to your local machine:

faithfracture

#===============================================================================
# Filename:  boost.sh
# Author:    Pete Goodliffe
# Copyright: (c) Copyright 2009 Pete Goodliffe
# Licence:   Please feel free to use this, with attribution
# Modified version
#===============================================================================
#
# Builds a Boost framework for iOS, iOS Simulator, and OSX.
# Creates a set of universal libraries that can be used on an iOS and in the

basecss

(function() {
    
    var ua = /iPhone|iP[oa]d/.test(navigator.userAgent) ? 'iOS' : /Android/.test(navigator.userAgent) ? 'Android' : 'PC';
    
    document.addEventListener('DOMContentLoaded', function(event) {
        
        if(ua === 'PC') {
            return;
        }
        

transitive-bullshit

#define SAMPLE_COUNT        {{ sampleCount }}
#define USE_ACTUAL_NORMALS  {{ useActualNormals }}

uniform sampler2D sGBuffer;
uniform sampler2D sNoise;

uniform float uSampleRadius;
uniform float uIntensity;
uniform vec2  uNoiseScale;
uniform vec3  uKernel[SAMPLE_COUNT];

dinocore1

# requires android ndkr8b or above

.PHONY: check-ndk clean

LIBOBJC2_MAKEFILE := libobjc2-1.6.1/Makefile
X86SYSROOT := $(shell pwd)/androidtoolchain-x86
ARMSYSROOT := $(shell pwd)/androidtoolchain-arm
GCC_X86 := $(X86SYSROOT)/bin/i686-android-linux-gcc
GCC_ARM := $(ARMSYSROOT)/bin/arm-linux-androideabi-gcc
LLVM_CONFIGURE := llvm/configure

NZKoz

(lldb) po NSStringFromCGRect(self.frame)
error: property 'frame' not found on object of type 'SLComposeCardView *'
error: 1 errors parsing expression
(lldb) po NSStringFromCGRect([self frame])
error: no known method '-frame'; cast the message send to the method's return type
error: 1 errors parsing expression
(lldb) po NSStringFromCGRect((CGRect)[self frame])
error: 'NSStringFromCGRect' has unknown return type; cast the call to its declared return type
error: 1 errors parsing expression
(lldb) po (NSString *)NSStringFromCGRect((CGRect)[self frame])

syzdek

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{
   NSRunLoop   * runLoop;
   CLIMain     * main; // replace with desired class

   @autoreleasepool
   {
      // create run loop

Bokugene

typedef struct FontHeader {
    int32_t fVersion;
    uint16_t fNumTables;
    uint16_t fSearchRange;
    uint16_t fEntrySelector;
    uint16_t fRangeShift;
}FontHeader;

typedef struct TableEntry {
    uint32_t fTag;

stuartjmoore

void renderSphere(float cx, float cy, float cz, float r, int p)
{
    float theta1 = 0.0, theta2 = 0.0, theta3 = 0.0;
    float ex = 0.0f, ey = 0.0f, ez = 0.0f;
    float px = 0.0f, py = 0.0f, pz = 0.0f;
    GLfloat vertices[p*6+6], normals[p*6+6], texCoords[p*4+4];
    
    if( r < 0 )
        r = -r;