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viewWillDisappear: Determine whether view controller is being popped or is showing a sub-view contro
...t:self] == NSNotFound) {
// View is disappearing because it was popped from the stack
NSLog(@"View controller was popped");
}
}
This is, of course, possible because the UINavigationController's view controller stack (exposed through the viewControllers property) has been updated by the t...
Inspecting standard container (std::map) contents with gdb
... Thanks for the link; the only thing is that macros are dependent from the stl libraries version, which I'd prefer to avoid. +1
– Paolo Tedesco
Jan 9 '09 at 10:41
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SVG get text element width
...ure if there are any circumstances when the text length would be different from the width: I think perhaps that method is provided to help with text layout such as splitting text over multiple lines, whereas the bounding box is a generic method available on all (?) elements.
– ...
C libcurl get output into a string
...
From reading the manual here: http://curl.haxx.se/libcurl/c/curl_easy_setopt.html I think you need several calls to CURL_SETOPT, the first being the URL you want to process, the second being something like:
curl_easy_setopt(...
Curious null-coalescing operator custom implicit conversion behaviour
...before code generation -- we reduce the expression
result = Foo() ?? y;
from the example above to the moral equivalent of:
A? temp = Foo();
result = temp.HasValue ?
new int?(A.op_implicit(Foo().Value)) :
y;
Clearly that is incorrect; the correct lowering is
result = temp.HasValue ? ...
C++ Dynamic Shared Library on Linux
...ne all the required functions virtual. The plugin author would then derive from MyClass, override the virtuals and implement create_object and destroy_object. Your main application would not need to be changed in any way.
sh...
Flask-SQLAlchemy how to delete all rows in a single table
...
Try delete:
models.User.query.delete()
From the docs: Returns the number of rows deleted, excluding any cascades.
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Non-alphanumeric list order from os.listdir()
...subdirectories: run01, run02, ... run19, run20, and then I generate a list from the following command:
12 Answers
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How do I ZIP a file in C#, using no 3rd-party APIs?
...ip = ZipFile.Open("test.zip", ZipArchiveMode.Create))
{
zip.CreateEntryFromFile(@"c:\something.txt", "data/path/something.txt");
}
You need to add references to:
System.IO.Compression
System.IO.Compression.FileSystem
For .NET Core targeting net46, you need to add dependencies for
System...
Reading/parsing Excel (xls) files with Python
...with Pandas using ExcelFile function, but it did not work properly for me. From here I found the read_excel function which works just fine:
import pandas as pd
dfs = pd.read_excel("your_file_name.xlsx", sheet_name="your_sheet_name")
print(dfs.head(10))
P.S. You need to have the xlrd installed for...