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TypeError: unhashable type: 'dict'
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To convert the resulting frozenset back to dict, just call dict(the_frozenset).
– user
Oct 8 '18 at 21:47
4
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Microsoft Excel mangles Diacritics in .csv files?
....= '"'. implode('"'.$sep.'"', $line).'"'.$eol;
}
$encoded_csv = mb_convert_encoding($csv, 'UTF-16LE', 'UTF-8');
header('Content-Description: File Transfer');
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment; filename="'.$filename.'.csv"');...
How to prevent ifelse() from turning Date objects into numeric objects
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The reason why this won't work is because, ifelse() function converts the values to factors. A nice workaround would be to convert it to characters before evaluating it.
dates <- as.Date(c('2011-01-01','2011-01-02','2011-01-03','2011-01-04','2011-01-05'))
dates_new <- dates - 1
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maximum value of int
Is there any code to find the maximum value of integer (accordingly to the compiler) in C/C++ like Integer.MaxValue function in java?
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Read/write to Windows registry using Java
...ccessing the private methods in the java.util.prefs.Preferences class. The internals of this class are complicated, but the class itself is very easy to use.
For example, the following code obtains the exact windows distribution from the registry:
String value = WinRegistry.readString (
WinReg...
How do I escape a reserved word in Oracle?
... it graciously allows omitting the double-quotes, in which case it quietly converts the identifier to uppercase:
SELECT MyColumn AS MyColAlias
FROM MyTable Alias
WHERE ThisCol = 'That Value';
gets internally converted to something like:
SELECT "ALIAS" . "MYCOLUMN" AS "MYCOLALIAS"
FROM "THEUSER" ...
How does the compilation/linking process work?
...ses the pure C++ source code (now without any preprocessor directives) and converts it into assembly code. Then invokes underlying back-end(assembler in toolchain) that assembles that code into machine code producing actual binary file in some format(ELF, COFF, a.out, ...). This object file contains...
GridCtrl 控件FAQ - C/C++ - 清泛网 - 专注C/C++及内核技术
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l 也可以设定某个单元格为只读
BOOL CGridCtrl::SetItemState(int nRow, int nCol, UINT state)
一般需配合使用UINT CGridCtrl::GetItemState(int nRow, int nCol) const
比如将单元格（1，1）设为只读
CGridCtrlObject.SetItemState(1,1, m_Grid.GetItemState(1,1) | GVIS_READON...
What's the opposite of chr() in Ruby?
In many languages there's a pair of functions, chr() and ord() , which convert between numbers and character values. In some languages, ord() is called asc() .
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How can I pass a member function where a free function is expected?
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There isn't anything wrong with using function pointers. However, pointers to non-static member functions are not like normal function pointers: member functions need to be called on an object which is passed as an implicit argument to the function. The signature of your me...