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How to do scanf for single char in C [duplicate]
In C:
I'm trying to get char from the user with scanf and when I run it the program don't wait for the user to type anything...
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Using backticks around field names
...backticks, I would assume it lets you get away with ridiculous stuff like
SELECT `id`, `my name`, `another field` , `field,with,comma`
Which does of course generate badly named tables.
If you're just being concise I don't see a problem with it,
you'll note if you run your query as such
EXPLA...
Why doesn't Java support unsigned ints?
...
This is an older question and pat did briefly mention char, I just thought I should expand upon this for others who will look at this down the road. Let's take a closer look at the Java primitive types:
byte - 8-bit signed integer
short - 16-bit signed integer
int - 32-bit si...
What data type to use for hashed password field and what length?
...h = password_hash("rasmuslerdorf", PASSWORD_DEFAULT);
The result is a 60-character string similar to the following (but the digits will vary, because it generates a unique salt).
$2y$10$.vGA1O9wmRjrwAVXD98HNOgsNpDczlqm3Jq7KnEd1rVAGv3Fykk1a
Use the SQL data type CHAR(60) to store this encoding o...
Pretty-print C++ STL containers
...t print a delimiter after the final item
template<typename T, typename TChar = char, typename TCharTraits = std::char_traits<TChar> >
class pretty_ostream_iterator : public std::iterator<std::output_iterator_tag, void, void, void, void>
{
public:
typedef TChar char_type;
ty...
string.Join on a List or other type
...le<T>)
If you can't upgrade, you can achieve the same effect using Select and ToArray.
return string.Join(",", a.Select(x => x.ToString()).ToArray());
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How do I apply the for-each loop to every character in a String?
So I want to iterate for each character in a string.
9 Answers
9
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Why is conversion from string constant to 'char*' valid in C but invalid in C++
...d implicit conversion--a string literal should be treated as being of type char const *, since you can't modify its contents (without causing undefined behavior).
As of C++11, the implicit conversion that had been deprecated was officially removed, so code that depends on it (like your first exampl...
What is a method that can be used to increment letters?
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Simple, direct solution
function nextChar(c) {
return String.fromCharCode(c.charCodeAt(0) + 1);
}
nextChar('a');
As others have noted, the drawback is it may not handle cases like the letter 'z' as expected. But it depends on what you want out of it. The s...
Search an Oracle database for tables with specific column names?
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To find all tables with a particular column:
select owner, table_name from all_tab_columns where column_name = 'ID';
To find tables that have any or all of the 4 columns:
select owner, table_name, column_name
from all_tab_columns
where column_name in ('ID', 'FNAME', ...