compilation

问题 compiling this code in scala 2.7.6: def flatten1(l: List[Any]): List[Any] = l.flatten i get the error: no implicit argument matching parameter type (Any) = > Iterable[Any] was found why? 回答1: If you are expecting to be able to "flatten" List(1, 2, List(3,4), 5) into List(1, 2, 3, 4, 5) , then you need something like: implicit def any2iterable[A](a: A) : Iterable[A] = Some(a) Along with: val list: List[Iterable[Int]] = List(1, 2, List(3,4), 5) // providing type of list // causes implicit //

问题 I am currently trying to compile libxml2 on Solaris . When I run the ./configure script provided with the sources, the gcc and g++ compilers are automatically used. However, I would like to use cc and CC compilers. So I run : ./configure CC=cc CXX=CC It works but then, when I run " make ", I get some errors which prevent the libraries to be generated. When gcc and g++ are used, everything goes well with no errors, so I was wondering: can I use the librairies generated with gcc/g++ the same

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Howto compile for Windows on Linux with gcc / g++? We don't have windows here how can I compile this program for some ppl? Is there some kinda Wine for linux programs to run on windows or what. 回答1: You can use cross-compiler gcc-mingw I did not use it myself and about it only theoretically. 来源： https://stackoverflow.com/questions/9243687/how-to-compile-c-on-linux-for-to-make-a-windows-binary

问题 I have a Leiningen project that is compiling both Java and Clojure files. The Java files import some of the classes that are generated from the Clojure files (with gen-class). When I do lein compile, I get compilation errors on the imports in the Java files (saying it can't find the classes). If I remove the Java files from the project, do lein compile, add the Java files back, and do lein compile again, everything works fine. So, it's like the Clojure files need to be compiled before the

问题 I am trying to compile a c program from a java program on Linux platform. My snippet is. ProcessBuilder processBuilder = new ProcessBuilder("/usr/bin/gcc", "-c","/hipad/UserProject/example.c"); Process proc = processBuilder.start(); There is no error during compilation of java program but I am not able to get .o file. I tried to find out solutions but no one is working. Any suggestion..... 回答1: The default working directory of a child process is what ever directory the Java process has as a

问题 I have few programs (written in C) implementing some algorithms, that I use to measure computation time. Whole data is implemented as static libraries directly in code, there's no input and output from these programs. There's also no C library calls (no printfs etc.). I want to build fully independent and minimal executable. I don't want to link my program with libgcc (target CPU has coprocessor, so I don't need to emulate floating point arithmetic), C library or any other. Actually I want to

问题 Problem I'm currently stuck trying to figure out what "iPhone OS Deployment Target" setting to use. I do not want to write conditional code right now, so I'd like the lowest version that runs my application fine. At first I thought it would be 2.0 as I wasn't using any 3.0 features, but then i realized that AVAudioRecorder is a 3.0 API. I don't want to be manually checking EVERY function I use in the documentation. Question Is there a tool that will check the OS availability of each functions

问题 Console log: FAILED FAILURE: Build failed with an exception. What went wrong: Execution failed for task ':app:dexDebug'. com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files (x86)\Java\jdk1.8.0\bin\java.exe'' finished with non-zero exit value 2 Try: Run with --info or --debug option to get more log output. Exception is: org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:dexDebug'. at org.gradle

问题 scalaVersion := "2.11.6" I have of course tried clean many times as well as update -- unsure if there is a clean-deeper to refresh the jar (libraries). What is really bizarre is that this occurred on TWO machines at the same time and one recovered without doing anything special and the other still has not. I've move up the code (about 2 weeks worth of effort) on the second machine thinking it was just some freaky luck of the draw type anomaly but sadly no. If I can't fix this I'm terrified!

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . I'm with a mechanical engineering background but I'm interested to learn good software engineering practice with Ada. I have a few queries. Q1. If I understand correctly then someone can just write a package specification (ads) file, compile it and then compile the main program