compilation

问题 I have a Scala project and I would like to export it as a jar. *1. At first I tried creating a Java class for the project as an entry point public class JMain { public static void main(String[] args) { System.out.println("Java main calling Scala main"); SMain.main(new String[] {""}); //SMain.main is the actual *main* and this worked fine and dandy when launched from Eclipse, but when I export it as jar it'll give me 18 exceptions or so. I do now know how to replicate then "environment" in

问题 I have a source code written in cpp that I want to compile and be readable in Python. Python must give 2 filenames as input and retrieve a matrix and a vector as output. If I had to do it in C/C++ I'd use 2 chars and 2 pointers but I don't know how a compiled C/C++ program can be seen for Python language. I hope that someone can help me. Thank you very much. 回答1: Try using Swig to generate the glue code necessary to call C/C++ code from Python. It's easier than writing the code yourself. 来源：

问题 I recently updated to Xcode 7 and as usual something has to go wrong. Its really a shame because I was looking forward to the new features in Xcode 7. I am faced with a an error which I cannot seem to fix. Every time I try and build the project I get the following error: I thought there was something wrong with my project, so I made a new Single View application and I still get the same error. I have tried the following things but none of them has worked for me: Restart Xcode (Didn't work).

问题 while uploading App Engine Application to server, GAE upload is very slow and gets stuck at "Compiling JSP". I have seen a bug for the same here - http://code.google.com/p/googleappengine/issues/detail?id=4222, but could not find a solution. I have many JSP files. When I cut down the number of jsp files to 10, the files get uploaded in 10-15 mins ... but when I increase the number to 50, there seems to be a lot of delay (in hours). It used to work fine with GAE 1.4.2. The issue is seen on the

问题 I want to make a Makefile to can compile both in Linux and in Solaris. I know how to do so individually, but how can I combine both and be able to detect what kind of OS I am using? I am trying to do this for just a simple C file - but it is the name of the compiler that changes. 回答1: GNU Autoconf was designed to solve this very problem: Autoconf is an extensible package of M4 macros that produce shell scripts to automatically configure software source code packages. These scripts can adapt

问题 I'm compiling WxWidgets for Windows using the following command line: mingw32-make -f makefile.gcc BUILD=release SHARED=1 -j6 The last parameter ( -j ) is used to speed up the compilation by running multiple jobs in parallel, in my case making full use of my 6-core processor. A single-threaded build normally takes very long. However, I get the following output when hitting Enter: if not exist gcc_mswudll mkdir gcc_mswudll if not exist ..\..\lib\gcc_dll mkdir ..\..\lib\gcc_dll if not exist ..\

问题 I've set up a hello world program just for testing my riscv32-unknown-elf toolchain, spike , pk etc. Though I managed to get the hello world printed using spike --isa=RV32 pk hello.elf , I found out that if I added the -d flag for debugging, I was given following instructions (a section of the whole): core 0: 0x0000000000001000 (0x7ffff297) auipc t0, 0x7ffff : core 0: 0x0000000000001004 (0x00028067) jr t0 : core 0: 0xffffffff80000000 (0x1b00006f) j pc + 0x1b0 : core 0: 0xffffffff800001b0

问题 I'm having trouble with this error and been searched for a solution on google but there aren't any. Exception: Field not found: 'System.Text.RegularExpressions.Regex.internalMatchTimeout'. My regular expression is : TheExpressions.Add("ExtractURL", @"\b(?:(?:https?|ftp|file)://|www\.|ftp\.) (?:\([-A-Z0-9+&@#/%=~_|$?!:,.]*\)|[-A-Z0-9+&@#/%=~_|$?!:,.])* (?:\([-A-Z0-9+&@#/%=~_|$?!:,.]*\)|[A-Z0-9+&@#/%=~_|$])"); Code to compile with options: CI[Cnt++] = new RegexCompilationInfo((string)de.Value,

问题 I recently downloaded Eclipse onto a Windows 7 machine. The machine already had a JRE but I noticed it didn't have a JDK. I was afraid I would have to download the JDK and then hook Eclipse up to it. I was (pleasanly) surprised when I was able to code, compile and run in Eclipse right out of the box. However, now I'm confused. From what I know about Java, Eclipse should need a JDK to compile code and a JRE to execute it. The best I can think of is... Eclipse is packaged with a JDK (if this is

问题 I have a workspace containing many *.c files, which I compile. (I could use any toolchain say MSVC6.0, or gcc etc) Which source file is compiled first? How is the order of the files to be compiled subsequently decided? 回答1: The order of compilation is not specified by the C standard. Since there is no need for the construction of global objects like in C++, there is no situation where the order of compilation is relevant in C. 回答2: Generally, this is not specified anywhere. Especially when