compilation | 易学教程

Building an android library project with jar dependencies

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问题 I have been struggling with a problem for a few days now and I am at a loss for how to fix this. I am working with an Android Library project that is being compiled using the Android tool as provided by the android sdk. Inside the project, I follow the standard structure of an an android project (where my jar files are found inside the libs directory of the project: I am finding that when I compile the project using Ant doing: <target name="compile-payment-lib" depends="prepare,init-profile">

Compiling Programs from Within Emacs?

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What is the best way to compile programs inside emacs? I am currently opening a separate buffer with C-x 3 and running eshell inside it using M-x eshell then invoking either make or clang directly; most of the time I do have a Makefile set up. Is there any advantage with running the compilation process using M-x compile vs running make inside eshell? Any other ways to do it and what are the advantages/disadvantages of those? The easiest way to do this is to use the Emacs built-in compile command. M-x compile should do you fine. You can then edit the command that will be run (by default make -k

Symbol not found, Expected in: flat namespace

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问题 I have a huge gl.pxd file with all the definitions of gl.h , glu.h and glut.h . For example it has these lines: cdef extern from '<OpenGL/gl.h>': ctypedef unsigned int GLenum cdef void glBegin( GLenum mode ) I have a window.pyx file, which looks like this: # Import OpenGL definitions # headers of gl, glu and glut from gl cimport * cdef int argcp cdef char **argv cdef void render_scene(): glClear( GL_COLOR_BUFFER_BIT ) glBegin( GL_TRIANGLES ) glVertex2f( -.5, -.5) glVertex2f( .5, 0 )

iPhone SDK Objective-C DATE (compile date) can't be converted to an NSDate

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问题 //NSString *compileDate = [NSString stringWithFormat:@"%s", __DATE__]; NSString *compileDate = [NSString stringWithUTF8String:__DATE__]; NSDateFormatter *df = [[[NSDateFormatter alloc] init] autorelease]; [df setDateFormat:@"MMM d yyyy"]; //[df setDateFormat:@"MMM dd yyyy"]; NSDate *aDate = [df dateFromString:compileDate]; Ok, I give up. Why would aDate sometimes return as nil? Should it matter if I use the commented-out lines... or their matching replacement lines? 回答1: It can return nil if

Java Puzzler- What is the reason? [closed]

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问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 6 years ago . I wrote following code. class String { private final java.lang.String s; public String(java.lang.String s){ this.s = s; } public java.lang.String

grunt-contrib-handlebars - Output is different than when I run the handlebars npm task

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Thank you in advance for your time and help. I'm trying to precompile handlebars (.hbs) templates using grunt-contrib-handlebars When I run the run task I end up with this: this["JST"] = this["JST"] || {}; this["JST"]["app/templates/err.hbs"] = Handlebars.template(function (Handlebars,depth0,helpers,partials,data) { this.compilerInfo = [4,'>= 1.0.0']; helpers = this.merge(helpers, Handlebars.helpers); data = data || {}; var buffer = "", stack1, functionType="function", escapeExpression=this.escapeExpression; buffer += "<div>Error: "; if (stack1 = helpers.error) { stack1 = stack1.call(depth0,

How to force OpenMPI to use GCC instead of ICC? Is recompiling OpenMPI necessary?

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问题 I have a C-code for parallel computing written for gcc , and I want to compile it on a cluster, which apparently uses icc via mpicc . Correcting the code to be icc -friendly seems to be too time-demanding, so I wonder if I can ask OpenMPI to use gcc instead. I don't have the admin rights on that cluster, and I would actually prefer to do not mess the original configuration. If it is not possible to set in e.g. Makefile , then I could hopefully compile OpenMPI in my home directory, but I need

stoi and stoll in c++

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I have #include(string) in my declaratives at the top of the program but when I try to run stoi(string) or stoll(string) i get the following error. I am running Cygwin g++ v4.5.3. Z:\G\CSCE 437>g++ convert.cpp -o conv convert.cpp: In function void transfer(std::string*)': convert.cpp:103:36: error: stoll' was not declared in this scope convert.cpp:116:35: error: `stoi' was not declared in this scope fileTime[numRec] = stoll(result[0]); //converts string to Long Long if(numRec = 0){ beginningTime = fileTime[0]; } fileTime[numRec] = timeDiff; hostName[numRec] = result[1]; diskNum[numRec] = stoi

How to load accessory files in compiled code, Chicken Scheme

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I'm currently working on a set of utilities, written in Chicken Scheme, and this is the first time I've tried writing a multi-file based program (or set of programs) in Chicken Scheme, and I'm having some trouble figuring out how to utilize code defined in accessory files correctly so that when you compile everything, the code defined in file A will be accessible to the compiled form of file B . I essentially need Chicken Scheme's equivalent to the following C code: #include "my_helper_lib.h" int main(void) { /* use definitions provided by my_helper_lib.h */ return 0; } I've tried using all of

Recording the time when you compile a source

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I have a source file. When I compile the code, I want the executable file to remember when it was built. I am wondering if it is possible. For example: int main(){ time_t t = ??? // Time when this line is compiled //print out value of t in certain format. return t } Flexo You can use the __TIME__ and __DATE__ macros to get the time the preprocessor ran at . It's a string, so yo need to convert it to a time_t from there. A quick example I put together: #include <time.h> #include <iostream> #include <cassert> time_t build_time() { static const char *built = __DATE__" "__TIME__; struct tm t;