Re: Using the result of a comma expression is deprecated
On Sunday, 27 November 2016 at 12:13:03 UTC, Nicholas Wilson
wrote:
On Sunday, 27 November 2016 at 11:49:25 UTC, Suliman wrote:
On Sunday, 27 November 2016 at 11:21:58 UTC, drug007 wrote:
void dbInsert(string login, string uploading_date, string
geometry_type, string data)
{
Statement stmt = conn.createStatement();
string sqlinsert = (`INSERT INTO usersshapes (userlogin,
uploading_date, geometry_type, data) VALUES ('%s', '%s', '%s',
'%s') `, login, uploading_date, geometry_type, data);
stmt.executeUpdate(sqlinsert);
scope(exit) stmt.close(); // closing
}
full code.
Looks like you forgot a call to format before the opening
parenthesis.
should be:
string sqlinsert = format(`INSERT INTO usersshapes (userlogin,
uploading_date, geometry_type, data) VALUES ('%s', '%s', '%s',
'%s') `, login, uploading_date, geometry_type, data);
because what ends up happening is :
string sqlinsert = data;
which is almost certainly not what you want.
As an aside, for security reasons you should use a prepared
statement.
Also, this is a decent usecase for scope(exit) but it should be
put earlier in the function.
Re: Is it possible to store different generic types in ex. an
On Wednesday, 9 November 2016 at 15:44:59 UTC, Is it possible to store different generic types? wrote: Foo[] foos; // Where Foo of course should allow any generic version of Foo You can use an array of std.variant
dmd compile large project
I just downloaded a larger project from Github without a build script or anything. Is there an easy way to compile it to a library or object files?
Re: dmd compile large project
Thanks for the input I was thinking there maybe was an easy way that I wasn't aware of. I only wanted to use a small part of the project so I just made a list of those files and their dependencies and compiled that.
logical operands on strings
I would like to do this:
string one = x315c4eeaa8b5f8aaf9174145bf43e1784b;
string two = xc29398f5f3251a0d47e503c66e935de81230b59b7a;
string three = one ^ two;
The closests I've been able to get is:
string three = xor(one, two);
string xor(string one, string two) {
int len = min(one.length, two.length);
string result;
for(int i=0; ilen; i++) {
result ~= one[i] ^ two[i];
}
return cast(string)result;
}
Question 1: is there a more elegant way to implement the function
xor? (foreach-ish or std.algorithm)
Then I tried to add operator overloading:
string opBinary(string op)(string lhs, string rhs) {
static if( op == ^ )
return xor(lhs, rhs);
else static assert(false, operator not possible);
}
But it doesn't invoke this function.
Question 2: how would I implement ^ for strings?
Re: logical operands on strings
On Sunday, 12 January 2014 at 18:28:38 UTC, Meta wrote: It looks like your opBinary on strings is an attempt at globally overriding the XOR operator. I'm almost 100% sure this won't work in D. All operator overloads have to be part of a class or struct. How would I do that without rewriting an entire string class? It seems I can't even inherit from string. Forgive me for making the comparison, but I believe in C++ i can simply implement this function and be done with it: string operator^(string lhs, string rhs);
Re: Compile/link Win64
On Friday, 10 January 2014 at 21:47:23 UTC, Nick Sabalausky wrote: Hmm, I hadn't ever uninstalled it. Regardless, *now* I've just uninstalled and reinstalled the Windows SDK, and re-ran vcvarsall.bat. The %WindowsSdkDir% is now set, but I'm still getting the same problem. The %WindowsSdkDir% is set to C:\Program Files (x86)\Microsoft SDKs\Windows\v8.0A, but there doesn't appear to be much in there (Just a Bootstrapper\Packages directory with not much inside it either). I don't think it installed correctly. There doesn't appear to be any other Windows SDK installation AFAICT either. Stupid f#*^# microsoft tools... The lastest Windows SDK installs to C:\Program Files (x86)\Windows Kits\8.1\
Re: VC linker - unresolved external symbols - runtime
It works if you recompile phobos64.lib So it seems the standard DMD 2.064.2 download comes with an outdated version of phobos64.lib which is out of sync with the included source code.
Re: VC linker - unresolved external symbols - runtime
@Palmic the DWinProgramming samples use the overload Runtime.initialize(ExceptionHandler) Which gives a warning that it is deprecated and you should use this overload instead: Runtime.initialize() But this is not compiled in phobos64.lib, while it is included in the source code. So the library and source code are out of sync. Fortunately it is relatively easy to compile yourself. I will make a bug report for this.
Re: VC linker - unresolved external symbols - runtime
Filed under installer https://d.puremagic.com/issues/show_bug.cgi?id=11871 You could add the linux thing as a comment if you're sure it's the same issue.
Re: D on Windows - linker question
On Monday, 21 October 2013 at 04:38:05 UTC, evilrat wrote: i'm currently trying to get up DirectX(d3d10(x),d3d11(x),xaudio2,x3daudio,d3dmath) up and running in free time, but i constantly encounter serious problems on my way. now i have some weird problems with COM(no COM - no DirectX). so i don't recommend anyone even try it(DirectX) now, unless one is truly skilled with C++ Thanks for your advice, I suspected as much. I will hack some more and see if I'm progressing or learning anything. And decide in a few days if I continue with D3D in D, or stick to C++. I do have experience in C++, though with server apps on Linux without native GUIs. p.s. for working win32 with dmd 2.063.2 go there(don't forget to convert .lib's to OMF, use coffimplib from digitalmars ftp) - https://github.com/AndrejMitrovic/DWinProgramming/tree/master/WindowsAPI I'm using COFF with the visual studio linker, so I don't need to convert. I do get a few compiler errors with DMD in these win32.* modules about incorrect typecasts. I will make a new topic if these persist or file a bug report with the author.
Re: D on Windows - linker question
My goal was to learn D and Direct3D at the same time. I've tried to set up DMD to do this, but I keep running into issues that the available DirectX11 and win32 headers are incomplete, or won't compile (tried both dmd 2.063 and 2.064, they halt on different type errors), or won't link. To be fair, these are only a few errors, but when the linker spews out some obfuscated function name I really don't know what to do. Will I have more luck with GDC? Or should I try to make headers on my own incrementally? (or take the easy route and use C++?)
D on Windows - linker question
Hello, I have set up my enviroment according to these instructions: http://wiki.dlang.org/Installing_DMD_on_64-bit_Windows_7_%28COFF-compatible%29 When I compile a small tutorial program I get this error: error LNK2019: unresolved external symbol MessageBoxW referenced in function WinMain I have to manually specify User32.Lib to dmd when I want to compile my program (or move User32.Lib to my project directory). Is this normal? Below is my sc.ini. [Environment] LIB=%DIR_WINSDK%\Lib\x64;%DIR_MSVC%\lib\amd64;%@P%\..\lib DFLAGS=-I%@P%\..\..\src\phobos -I%@P%\..\..\src\druntime\import -m64 LINKCMD=%@P%\link.exe LINKCMD64=%DIR_MSVC%\bin\amd64\link.exe Obviously User32.Lib resides in %DIR_WINSDK%\Lib\x64. This directory resolves correctly in windows explorer to C:\Program Files\Microsoft SDKs\Windows\v7.1\Lib\x64
Re: Can't compile on 64 bit Windows
(late I know but it may help someone) The linker is trying to link against x86 libraries instead of x64. If you followed the tutorial to the letter, you need to check if %DEV_DIR_WINSDK%\Lib\x64 resolves correctly (paste in cmd or windows explorer).
