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Compiling and linking a 32 bit application on Debian 64 bit

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问题 I am currently trying to compile and link a 32 bit application on my Debian 64 bit, but it fails at link time. The command I'm using (in my Makefile) to compile is: gcc -Os -m32 -Wall -g -c $< -o $@ This seems to work. Then I link with the following command: gcc -m32 -lcurses $^ -o $@ This fails and gives the following errors: /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.4.5/../../../libcurses.so when searching for -lcurses /usr/bin/ld: skipping incompatible /usr/lib/gcc

What's the correct way to use win32inet.WinHttpGetProxyForUrl

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问题 I'm trying to use a feature of the Microsoft WinHttp library that has been exposed by the developers of Win32com. Unfortunately most of the library does not seem to be documented and there are no example of the correct way to use the win32inet features via the win32com library. This is what I have so far: import win32inet hinternet = win32inet.InternetOpen("foo 1.0", 0, "", "", 0) # Does not work!!! proxy = win32inet.WinHttpGetProxyForUrl( hinternet, u"http://www.foo.com", 0 ) As you can see,

what is meant by 32-bit application?

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I am not sure what is meant by 16-bit or 32-bit applications. Is that a 16-bit application is an application which would not require more than 2^16 bytes of memory space? Does this 16-bit refers to the max size of the application? A 32-bit application is software that runs in a 32-bit flat address space. Answers to common questions Will a 64 bit CPU run a standard (32-bit) program on a 64-bit version of an OS? Yes it will. 64 bit systems are backward compatible with the 32 bit counterparts. Will a 64-bit OS run a standard application on a 64 bit processor? Again, it will. This is because of

php 32bit date parsing for dates before 13Dec 1901

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问题 I was happily using strtotime() on my development machine to parse dates some of which are in the 1800s, with an extreme example in the 1500s. But my development machine is 64 bit and the server is 32 bit. On a 32 bit machine any date before Fri, 13 Dec 1901 20:45:54 UTC is out of range (see notes on strtotime). I am happy to write some custom code for this, but thought I would ask if any of the php inbuilt functions will manage this. The dates are in ISO 8601 format. For what it is worth the

How to detect the difference between a wrapping counter and large negative value in C language

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问题 Apologies for my imbecility as this is my first post on this forum. I am trying to detect the difference between a wrapping unsigned 32-bit counter and a large negative Jump with the help of following code but the compiler give me error: error: comparison is always true due to limited range of data type [-Werror=type-limits] Here is my code snippet: #define MAX_BACKWARD_JUMP -4294959295 //UINT_MAX - 8000 #define MIN_BACKWARD_JUMP -3600 #define MAX_FORWARD_JUMP 4800000 signed int rtpDelta; /

How can I build for linux 32-bit with go1.6.2

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Is there any combination of GOARCH and GOOS values which I can set in order to build ELF 32-bit binary? GOOS=linux and GOARCH=386 . More examples: architecture: 32-bit -> GOARCH=386 64-bit -> GOARCH=amd64 OS: Windows -> GOOS=windows Linux -> GOOS=linux OS X -> GOOS=darwin FreeBSD -> GOOS=freebsd For the complete list (valid "individual" values) refer to go/build/syslist.go file: const goosList = "android darwin dragonfly freebsd linux nacl netbsd openbsd plan9 solaris windows " const goarchList = "386 amd64 amd64p32 arm armbe arm64 arm64be ppc64 ppc64le mips mipsle mips64 mips64le mips64p32

Issue running 32-bit executable on 64-bit Windows

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I'll add 500 of my own rep as a bounty when SO lets me. I'm using wkhtmltopdf to convert HTML web pages to PDFs. This works perfectly on my 32-bit dev server [unfortunately, I can't ship my machine :-p ]. However, when I deploy to the web application's 64-bit server the following errors are displayed: (running from cmd.exe) C:\>wkhtmltopdf http://www.google.com google.pdf Loading pages (1/5) QFontEngine::loadEngine: GetTextMetrics failed () ] 10% QFontEngineWin: GetTextMetrics failed () QFontEngineWin: GetTextMetrics failed () QFontEngine::loadEngine: GetTextMetrics failed () QFontEngineWin:

Cannot run 32-bit apps on 64-bit Linux

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问题 I have a very minimal install of Ubuntu 8.04 64-bit. When I try to run some 32-bit programs, such as my jhead program, I get the message No such file or directory . I figured it may be a library problem, but when I do: ldd jhead instead of a list of libraries it needs, I just get the message not a dynamic application . Same for another old 32-bit app I use. So it would appear some very important components for running 32 bit apps are not installed. But how do I even determine what these are?

cannot convert from 'const char [3]' to 'char *' x100000 (Qt Creator C++ Windows 32)

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Everything was working fine just five minutes ago when I tapped f5 and got 102 errors: error: C2440: 'initializing' : cannot convert from 'const char [17]' to 'char *' Conversion from string literal loses const qualifier (see /Zc:strictStrings) That specific one is at line 30: char* hexchars = "0123456789ABCDEF"; I haven't touched the file the errors are in for at least a week. I'd normally say I accidentally changed something in the compile args or something, but I haven't opened settings since much before it started erroring. Any ideas? I must have absentmindedly changed some setting but I

Running 32-bit dll on 64-bit machine in java

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I am attempting to use a 3rd-party dll for a program I am writing in java. Unfortunately, it only has 32-bit support. When I attempt to load the dll in a 64-bit VM, I get the following error: Can't load IA 32-bit .dll on a AMD 64-bit platform I have tried running in a 32-bit VM, which works in eclipse, but when I export the project, I get the same error. Please help! Sincerely, Ben You cannot use a 32-bit DLL in a 64-bit Hotspot JVM. It won't work. And I don't know of any other 64-bit JVM that supports 32-bit DLLs. Indeed, as Peter Lawrey points out, this is not just a JVM limitation. No