preprocessor

问题 There is a project that has #preprocess directives. I.e. there is #preprocess directive in the beginning of a file and something like #ifdef BlackBerrySDK6.0.0 inside the file. Though it compiles well in eclipse, there are problems using bb-ant-tools. It behaves as though there is no preprocessing: compile errors on strings that should not be included. I have build.properties file; it is included through <property file="build.properties"> AND <jdp file="build.properties"> . I have

问题 I have common files in several projects and I need to stop from compiling some lines and functions for project A, meanwhile it should be compiled for project B. I know that I can use preprocessor. But it's not convenient for me. Is there any way to stop lines of code from compiling with condition like below? #if PhotosModuleSettings.type == .documents ... do not commpile #endif 回答1: What's not convenient about using the preprocessor? You can specify the preprocessor macros in build settings

问题 Got a column with 50 keywords: Keyword1 Keyword2 Keyword3 KeywordN=50 In addition I got a data frame with two columns: Title and Abstract. Title Abstract Rstudio Keyword1 A interesting program language keyword2 Python Keyword3 A interesting program keyword3 language I want to get an extra column (let's call it Keywords), where the keyword name will appear IF it is in the Title or Abstract, like this: Title Abstract Keywords Rstudio Keyword1 A interesting program language keyword2 Keyword1,

问题 At the moment I'm trying to process lingspam dataset by counting the occurance of words in 600 files (400 emails and 200 spam emails). I've already made each word universal with the Porter Stemmer Aglorithm, I would also like for my result to be standardized across each file for further processing. But I'm unsure on how I can accomplish this.. Resources thus far 8.3. collections — Container datatypes How to count co-ocurrences with collections.Counter() in python? Bag of Words model In order

问题 I created a C++ shared library project in Ubuntu with compiler g++ 4.6 . Some of the dependency libraries expects some preprocessor commands about compiler and operating system to properly compile, like #elif defined(__GNUC__) || defined(__llvm__) || defined(__clang__) However Eclipse doesn't define them automatically (at least the version I'm using), is there a setting or option in Eclipse which does this for me ? 回答1: You can set preprocessor defines in the project properties: . However, in

问题 How can I switch to a different theme template file for any node that I want? I understand how to create sub-themes like node-recipes.tpl.php for a node that has a path of "recipes". But what I want to have control of the entire base template like page.tpl.php. Can I use some preprocess function in template.php for this? Right now I have this in my template.php file: function mythemename_preprocess_node(&$vars) { // template name for current node id $suggestions = array('node-'. $vars['nid'])

问题 I have defined many constants in GlobalVar.h and other .h files. I import these files in the Prefix.pch file like this : // // Prefix header for all source files of the 'XXX' target in the 'XXX' project // #import "GlobalVar.h" [...] #ifndef __IPHONE_3_0 #warning "This project uses features only available in iPhone SDK 3.0 and later." #endif #ifdef __OBJC__ #import <UIKit/UIKit.h> #import <Foundation/Foundation.h> #import <CoreData/CoreData.h> #endif But when I compile the project all the

问题 I have a large (2GB) comma separated textfile containing some data from Sensors. Sometimes the sensors are off and there is no data. I want to delete the rows if there are more than specified number of No Data or Off or any non-numeric values in each row; excluding the header. I am only interested in counting from 3rd column onwards. For example: my data looks like: Tag, Description,2015/01/01,2015/01/01 00:01:00,2015/01/01 00:02:00, 2015/01/01 00:02:00 1827XYZR/KB.SAT,Data from Process Value

问题 VB.NET 2010, .NET 4 Hello, I would like to do (something like) the following: \#Const T = "Byte()" Public Class MyClass Inherits SomeGenericClass(Of T) .. other code .. End Class And have it act the same as if I'd typed Public Class MyClass Inherits SomeGenericClass(Of Byte()) .. other code .. End Class It's not so much that i have to do it this way, I'm just curious if such a thing is possible. Thanks in advance! Brian 回答1: No, this is not possible. The Visual Basic and C# designers decided

问题 I'm trying to implement the logging approach at http://www.cimgf.com/2010/05/02/my-current-prefix-pch-file/ . I'm not sure how to complete the step: Therefore the first line is a switch to see if we are in debug mode. I set this value in the build settings of my project. If you look under the “Preprocessor Macros” section you can set the DEBUG definition there. This is to cater for a "#ifdef DEBUG" entry (I'm only giving first line) in your code. QUESTION: How do I actually setup this DEBUG