I seem to be able to use boost::make_shared everywhere except with boost asio?
example: _ioService = boost::shared_ptr<io_service>(new io_service)
if I turn this into: _ioService = boost::make_shared<io_service>()
I get all kinds of errors?
Same problem if I take:
_acceptor = boost::shared_ptr<tcp::acceptor>(new tcp::acceptor(*_ioService));
and turn it into this:
_acceptor = boost::make_shared<tcp::acceptor>(*_ioService);
As boost::asio::tcp::acceptor takes a boost::asio::io_service by non-const reference you need to change:
_acceptor = boost::make_shared<tcp::acceptor>(*_ioService);
to:
_acceptor = boost::make_shared<tcp::acceptor>(boost::ref(*_ioService));
Related
I want to isolate a string but I keep getting a setting with copy error. I read the other threads on settingwithcopy warnings but I don't understand why those solutions don't work here.
I've tried using:
df['Title'][i] = delBy[i]
df.Title[i] = delBy[i]
df[df.Title][i] = delBy[i]
df.loc[df.Title][i] = delBy[i]
df.loc[i]['Title'] = delBy[i]
Actual code:
delBy = df['Title'].str.extract(r'(.+?)(?= [bB]y)', expand = False)
for i in df.index:
if pd.notna(delBy[i]) == True:
df['Title'][i] = delBy[i]
else:
continue
If title has keywords by or By (ex: Animal by John) keep only title (Animal). Leave other titles alone (ex: Meditations)
It looks that you want to delete "by ..." part, where it can be done.
Then start from:
delBy = df.Title.str.extract(r'(.+?)(?= [bB]y)', expand = False).dropna()
(note that I added .dropna()).
Then, instead of your loop, just update this column (in place):
df.Title.update(delBy)
A shorter solution, isn't it?
I'm trying to create a little menu to switch from "YouCompleteMe" to "Supertab" and vice versa.
function! TabFunction()
if !exists("g:WhatTab")
let g:WhatTab = "Tab function?"
endif
if !exists("g:MenuTab_choices")
let g:MenuTab_choices = "&SuperTab\n&YouCompleteMe"
endif
let n = confirm(g:WhatTab, g:MenuTab_choices, "Question")
if n == 1
let g:SuperTabMappingForward = '<Tab>'
let g:SuperTabMappingBackward = '<S-Tab>'
let g:ycm_key_list_select_completion = ['<C-Tab>', '<Down>']
let g:ycm_key_list_previous_completion = ['<C-S-Tab>', '<Up>']
elseif n == 2
let g:SuperTabMappingForward = '<C-Tab>'
let g:SuperTabMappingBackward = '<C-S-Tab>'
let g:ycm_key_list_select_completion = ['<Tab>', '<Down>']
let g:ycm_key_list_previous_completion = ['<S-Tab>', '<Up>']
endif
endfun
This doesn't work.
When I try to check the value of these variables from the commandline
:echo 'global variable'
the values are correct but they don't work as expected.
Is it not possible to declare a global variable like this?
The use of the g: variable prefix ensures that the global variables are set from within a function; this is correct. Your problem is that the plugin configuration variables like g:SuperTabMappingForward are only evaluated once during plugin load (when Vim starts up), but not during runtime. This mechanism wasn't meant for dynamic reconfiguration.
Solutions
Instead of toggling the (ignored) config variables, you have to do the remapping yourself. At least SuperTab defines corresponding <Plug>... targets; I guess YCM does this, too:
if n == 1
imap <Tab> <Plug>SuperTabForward
...
elseif n == 2
imap <C-Tab> <Plug>SuperTabForward
Alternatively, the brute-force variant would be to reload the plugins (:runtime plugin/supertab.vim) to get the changed global variable values to be considered, but that's very inefficient, may cause errors, and makes you work around plugin load guards in addition.
To get rid of flicker, I use wxBufferedPaintDC in place of wxPaintDC. But there comes a problem. In my paint function, in order to draw a cubic beizer curve I must use GetGraphicsContext to create a path. My question is why GetGraphicsContext returns a NULL pointer when using wxBufferedPaintDC.
void DotGraphView::OnPaint(wxPaintEvent & WXUNUSED(evt))
{
wxBufferedPaintDC dc(this);
PrepareDC(dc);
PaintBackground(dc);
wxGCDC &gdc = (wxGCDC&)dc;
wxGraphicsContext * gc = gdc.GetGraphicsContext(); /* here gc = NULL */
wxGraphicsPath path = gc->CreatePath(); /* program collapses here */
...
}
The cast that you have from wxBufferedPaintDC to wxGCDC looks a little suspicious to me, the wxGraphicsContext pages suggests doing it like this:
wxGraphicsContext *gc = wxGraphicsContext::Create( dc );
if (gc)
{
//drawing code here
delete gc;
}
I feel suspicious too, the suggestion page does not work.
Now I use the following codes and the program run ok.
wxBufferedPaintDC pdc(this);
wxGCDC gdc;
wxGraphicsRenderer * const renderer = wxGraphicsRenderer::GetDefaultRenderer();
wxGraphicsContext * context = renderer->CreateContext(pdc);
gdc.SetGraphicsContext(context);
wxDC & dc = (wxDC &)gdc;
PrepareDC(dc);
Draw(dc);
...
You should use wxAutoBufferedPaintDC.
There is no need to buffer on some platform (like GTK).
Then, you can use the constructor
wxGCDC gcdc(dc);
This works at least on GTK and MSW.
I'm having a hard-time debugging a local variable. I'm running gcc 4.2, XCode 3.2.4, base SDK Mac OS 10.5, and Objective-C++ in Debug-Mode.
Here's the issue. I'm working on trying to understand some code and it goes like this:
#define MAX4D 500
...
NSMutableArray *viewerPix[ MAX4D ];
When I hover over it during debug (pause on the line before and after) I get this
Unable to access variable "viewerPix"
Unable to access variable "viewerPix"
Unable to access variable "viewerPix"
...
repeated until I kill the application. What would cause this? I've tried setting it to a lower number... but to no avail. Even after I actually set the C-Array:
viewerPix[0] = [[NSMutableArray alloc] initWithCapacity:0];
I still get the same repeated error message.
However, if I don't mouse-over the value (or debug) it "appears" to run fine, even doing stuff like:
[viewerPix[0] addObject: dcmPix];
if( [viewerPix[0] count] != [loadList count])...
but if I debug after those steps, it crashes just like before. Here are my build settings:
STRIPFLAGS =
ALTERNATE_GROUP = $(INSTALL_GROUP)
ALTERNATE_OWNER = $(INSTALL_OWNER)
ALTERNATE_MODE = $(INSTALL_MODE_FLAG)
ALTERNATE_PERMISSIONS_FILES =
DEPLOYMENT_LOCATION = NO
DEPLOYMENT_POSTPROCESSING = NO
INSTALL_GROUP = $(GROUP)
INSTALL_OWNER = $(USER)
INSTALL_MODE_FLAG = u+w,go-w,a+rX
DSTROOT = /tmp/$(PROJECT_NAME).dst
INSTALL_PATH = $(HOME)/Applications
SKIP_INSTALL = NO
COPY_PHASE_STRIP = NO
STRIP_INSTALLED_PRODUCT =
STRIP_STYLE = debugging
SEPARATE_STRIP = NO
GCC_FAST_OBJC_DISPATCH = YES
GCC_AUTO_VECTORIZATION = NO
GCC_OBJC_CALL_CXX_CDTORS = YES
GCC_ENABLE_SSE3_EXTENSIONS = NO
GCC_ENABLE_SSE41_EXTENSIONS = NO
GCC_ENABLE_SSE42_EXTENSIONS = NO
GCC_ENABLE_SUPPLEMENTAL_SSE3_INSTRUCTIONS = NO
GCC_STRICT_ALIASING = NO
GCC_FEEDBACK_DIRECTED_OPTIMIZATION = Off
GCC_ENABLE_FIX_AND_CONTINUE = NO
GCC_GENERATE_DEBUGGING_SYMBOLS = YES
GCC_DYNAMIC_NO_PIC = NO
GCC_GENERATE_TEST_COVERAGE_FILES = NO
GCC_INLINES_ARE_PRIVATE_EXTERN = YES
GCC_MODEL_TUNING = G5
GCC_INSTRUMENT_PROGRAM_FLOW_ARCS = NO
GCC_ENABLE_KERNEL_DEVELOPMENT = NO
GCC_DEBUGGING_SYMBOLS = default
GCC_REUSE_STRINGS = YES
GCC_NO_COMMON_BLOCKS = NO
GCC_ENABLE_OBJC_GC = unsupported
GCC_OPTIMIZATION_LEVEL = 0
GCC_FAST_MATH = NO
GCC_ENABLE_SYMBOL_SEPARATION = YES
GCC_THREADSAFE_STATICS = YES
GCC_SYMBOLS_PRIVATE_EXTERN = NO
GCC_UNROLL_LOOPS = NO
GCC_MODEL_PPC64 = NO
I don't know what else to say. Let me know what more information is needed, because I'm at a loss. There's also no 'build' tab when I get-info on the .mm file. Just General, Target, Comments (some helps I checked said to remove file-specific tags).
Should I initialize that c-array to nil? I can't just do.. array[500] = {nil}; right? that's C#?
I was using LLVM and Clang 1.5, but I switched to GCC 4.2 since I wasn't getting any local symbols. Am I missing something??
If the optimizer is on, that can effectively eliminate local variables.
However, why a C array of mutable ObjC arrays? That seems odd.
check Product->Scheme->Edit Scheme->Run xxx, Build Configuration is Debug, if that is Release happened you see.
How do I get an outline view in sublime text editor for Windows?
The minimap is helpful but I miss a traditional outline (a klickable list of all the functions in my code in the order they appear for quick navigation and orientation)
Maybe there is a plugin, addon or similar? It would also be nice if you can shortly name which steps are neccesary to make it work.
There is a duplicate of this question on the sublime text forums.
Hit CTRL+R, or CMD+R for Mac, for the function list. This works in Sublime Text 1.3 or above.
A plugin named Outline is available in package control, try it!
https://packagecontrol.io/packages/Outline
Note: it does not work in multi rows/columns mode.
For multiple rows/columns work use this fork:
https://github.com/vlad-wonderkidstudio/SublimeOutline
I use the fold all action. It will minimize everything to the declaration, I can see all the methods/functions, and then expand the one I'm interested in.
I briefly look at SublimeText 3 api and view.find_by_selector(selector) seems to be able to return a list of regions.
So I guess that a plugin that would display the outline/structure of your file is possible.
A plugin that would display something like this:
Note: the function name display plugin could be used as an inspiration to extract the class/methods names or ClassHierarchy to extract the outline structure
If you want to be able to printout or save the outline the ctr / command + r is not very useful.
One can do a simple find all on the following grep ^[^\n]*function[^{]+{ or some variant of it to suit the language and situation you are working in.
Once you do the find all you can copy and paste the result to a new document and depending on the number of functions should not take long to tidy up.
The answer is far from perfect, particularly for cases when the comments have the word function (or it's equivalent) in them, but I do think it's a helpful answer.
With a very quick edit this is the result I got on what I'm working on now.
PathMaker.prototype.start = PathMaker.prototype.initiate = function(point){};
PathMaker.prototype.path = function(thePath){};
PathMaker.prototype.add = function(point){};
PathMaker.prototype.addPath = function(path){};
PathMaker.prototype.go = function(distance, angle){};
PathMaker.prototype.goE = function(distance, angle){};
PathMaker.prototype.turn = function(angle, distance){};
PathMaker.prototype.continue = function(distance, a){};
PathMaker.prototype.curve = function(angle, radiusX, radiusY){};
PathMaker.prototype.up = PathMaker.prototype.north = function(distance){};
PathMaker.prototype.down = PathMaker.prototype.south = function(distance){};
PathMaker.prototype.east = function(distance){};
PathMaker.prototype.west = function(distance){};
PathMaker.prototype.getAngle = function(point){};
PathMaker.prototype.toBezierPoints = function(PathMakerPoints, toSource){};
PathMaker.prototype.extremities = function(points){};
PathMaker.prototype.bounds = function(path){};
PathMaker.prototype.tangent = function(t, points){};
PathMaker.prototype.roundErrors = function(n, acurracy){};
PathMaker.prototype.bezierTangent = function(path, t){};
PathMaker.prototype.splitBezier = function(points, t){};
PathMaker.prototype.arc = function(start, end){};
PathMaker.prototype.getKappa = function(angle, start){};
PathMaker.prototype.circle = function(radius, start, end, x, y, reverse){};
PathMaker.prototype.ellipse = function(radiusX, radiusY, start, end, x, y , reverse/*, anchorPoint, reverse*/ ){};
PathMaker.prototype.rotateArc = function(path /*array*/ , angle){};
PathMaker.prototype.rotatePoint = function(point, origin, r){};
PathMaker.prototype.roundErrors = function(n, acurracy){};
PathMaker.prototype.rotate = function(path /*object or array*/ , R){};
PathMaker.prototype.moveTo = function(path /*object or array*/ , x, y){};
PathMaker.prototype.scale = function(path, x, y /* number X scale i.e. 1.2 for 120% */ ){};
PathMaker.prototype.reverse = function(path){};
PathMaker.prototype.pathItemPath = function(pathItem, toSource){};
PathMaker.prototype.merge = function(path){};
PathMaker.prototype.draw = function(item, properties){};