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Questions tagged [pch]

Precompile Prefix Header

In iOS development with Xcode, PCH stands for Precompile Prefix Header, to make compiling faster and avoid repeating using same header file over and over again.

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What is the preprocessor define for C++ language in Xcode precompile header?

In my Prefix.pch file I am using __OBJC__ preprocessor define for compilation of Objective C headers. What is the equivalent for compilation of C++ headers? #ifdef __OBJC__ #import #import #endif
andrewz
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Using UTF-8 codes for use in intToUtf8() in R?

I'm trying to use UTF-8 code to put a symbol in some text in an R figure. If I wanted a black circle, I could use the code intToUtf8(9679). Where can I find a database that lists the values for other symbols? I want to find the code to create a red…
mikey
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ggplot2 pch 21 fill within aes not working

I'm trying to make a scatterplot of sorts, where the symbol shape and the symbol fill are set by two different variables. Here is an example of my data: Sample Experiment Replicate EPS Time Group 1 1 1 5 24 Wild-type 2 1 3 4.5 24 …
Ensa
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How can I restart a class added in prefix.pch in my objective c project?

I added a extension class into my prefix.pch. I added some private functions to this class. WHen I call this class from some viewController, this is initialized, but when I call again isn't reinitilized. How could be possible reinitialized this…
user3745888
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Visual Studio 2017 PCH doesn't improve build time

I enabled PCH for one project. Added all commonly used headers(from C++ std lib and boost) into stdafx.h, added stdafx.cpp and included stdafx.h there. I selected Create in the properties of stdafx.cpp and selected Use in the project settings. Also…
herolover
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How to import existing Objective C PCH file in Swift class

I have declared URLs etc in PCH file in objective C project. I am also using swift in same project but not able to get those URLs declared in PCH file. I tried by importing PCH file in bridging header but values are not showing in swift View…
Vinay Krishna Gupta
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Default template parameter not found if header is in precompiled header xcode

i have a simple function like this in a test.h header template Dst format(const T&); template Dst format(const T&) { return Dst(); } in test.cpp #include "stdafx.h" #include…
Mihai Sebea
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iOS clang error no file or directory

I''m very unfamiliar with the iOS build process. I was giving a legacy application that hasn't been touched in a few years, it was targeting iOS 5 before I opened it. I'm running into an error Command…
VirtualProdigy
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PIC error compiling ACE with Clang

I'm tring to compile some ACE lib within my project with PCH support and including only sources that i need I'm on ubuntu 16.04 and i need to use clang but i've this error: error: PIC level differs in PCH file vs. current file I've prepared a…
Joseph
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Import a framework on a file to use on all other files in swift

I've started coding in Swift with a game project using SpirteKit I want to import SpriteKit in a file like a .pch file, so all the other files in the project can use and no need to call import SKSpriteKit again. But Swift seems not support .pch…
Scofield Tran
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Automatically resizing a custom plotting character?

Hey everybody I am hoping there is someone out there who can help me with plotting a custom made pch in R. In my case I am trying to create a graph relating to water quality over time. One way to monitor water quality is to use a secchi disc, which…
s_scolary
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How to ignore certain PCH defines in some classes? (Cannot find interface declaration for)

For example, I created a category UILabel+AALabel.h And has added it into PCH: #import "UILabel+AALabel.h" But this obviously causes an error in my category file (UILabel+AALabel.h), because it attempts to import itself: "Cannot find interface…
Андрей Бронников
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Line markers (pch) are not shown for big datasets using R plot command

I am able to plot data and and everything seems to work. The only problem is that R seems to decide if line markers are inserted or not. I have several different datasets, for the dataset with 1500 the plot works fine and I can see the markers. Any…
Moises Rodrigues
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#define in .pch file is not working

I'm trying to define the type of the build by using those 3 variables, but for some reason, it always uses the first one. Any ideas? // Pay attention: only ONE of these modes MUST be chosen. // // #define DEVELOPMENT 0 #define PRODUCTION 1 #define…
ytpm
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How to Declare Global Variable in Swift?

I am creating an App in which I have to declare some constant as global. in Obj C I could use pch file but I don't know how to define in Swift? For Example in Obj C .pch file if I declare define Red [UIColor redColor] then it works through out…
M Swapnil
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