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MySQL error: key specification without a key length
...r BLOB types such as TINYBLOB, MEDIUMBLOB, LONGBLOB, TINYTEXT, MEDIUMTEXT, and LONGTEXT that you try to make a primary key or index. With full BLOB or TEXT without the length value, MySQL is unable to guarantee the uniqueness of the column as it’s of variable and dynamic size. So, when using BLOB ...
Creating Unicode character from its number
...
Just cast your int to a char. You can convert that to a String using Character.toString():
String s = Character.toString((char)c);
EDIT:
Just remember that the escape sequences in Java source code (the \u bits) are in HEX, so ...
How to throw std::exceptions with variable messages?
...lt;< foo << 13 << ", bar" << myData); // implicitly cast to std::string
throw std::runtime_error(Formatter() << foo << 13 << ", bar" << myData >> Formatter::to_str); // explicitly cast to std::string
...
Sql Server string to date conversion
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Try this
Cast('7/7/2011' as datetime)
and
Convert(varchar(30),'7/7/2011',102)
See CAST and CONVERT (Transact-SQL) for more details.
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How to get rid of `deprecated conversion from string constant to ‘char*’` warnings in GCC?
...alise strings that will be modified, because they are of type const char*. Casting away the constness to later modify them is undefined behaviour, so you have to copy your const char* strings char by char into dynamically allocated char* strings in order to modify them.
Example:
#include <iostr...
HMAC-SHA1 in bash
...ctly what you're asking for, but there's no point in reinventing the wheel and writing a bash version.
You can simply use the openssl command to generate the hash within your script.
[me@home] echo -n "value" | openssl dgst -sha1 -hmac "key"
57443a4c052350a44638835d64fd66822f813319
Or simply:
[...
Should I use `import os.path` or `import os`?
...lly a submodule of a package called os, I import it sort of like it is one and I always do import os.path. This is consistent with how os.path is documented.
Incidentally, this sort of structure leads to a lot of Python programmers' early confusion about modules and packages and code organization...
How do I convert Word files to PDF programmatically? [closed]
...ScreenUpdating = false;
foreach (FileInfo wordFile in wordFiles)
{
// Cast as Object for word Open method
Object filename = (Object)wordFile.FullName;
// Use the dummy value as a placeholder for optional arguments
Document doc = word.Documents.Open(ref filename, ref oMissing,
...
C++ templates Turing-complete?
...= config::position };
typedef typename Conditional<
static_cast<int>(GetSize<typename config::input>::value)
<= static_cast<int>(position),
AppendItem<InputBlank, typename config::input>,
Identity<typename config::input>&g...
Test if a property is available on a dynamic variable
...
@ministrymason If you mean casting to IDictionary and work with that, that works only on ExpandoObject, it won't work on any other dynamic object.
– svick
Jul 12 '12 at 16:58
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