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String's Maximum length in Java - calling length() method
...ximately 2 billion.)
In terms of lengths and indexing of arrays, (such as char[], which is probably the way the internal data representation is implemented for Strings), Chapter 10: Arrays of The Java Language Specification, Java SE 7 Edition says the following:
The variables contained in an ar...
How to make a valid Windows filename from an arbitrary string?
...g like "Foo: Bar" that I want to use as a filename, but on Windows the ":" char isn't allowed in a filename.
14 Answers
...
How to replace multiple white spaces with one white space
... Note that '\s' not only replaces white spaces, but also new line characters.
– Bart Kiers
Aug 14 '09 at 20:45
12
...
Textarea onchange detection
...lly know how off you are: could be typing or deleting, and could have text selected meaning it's more than just +/- 1).
– brianmearns
Apr 26 '12 at 15:24
66
...
Why do we need C Unions?
... Here is a trivial example:
typedef union
{
struct {
unsigned char byte1;
unsigned char byte2;
unsigned char byte3;
unsigned char byte4;
} bytes;
unsigned int dword;
} HW_Register;
HW_Register reg;
Then you can access the reg as follows:
reg.dword = 0x...
Static constant string (class member)
... requirement for using a STL string, you might as well just define a const char*. (less overhead)
– KSchmidt
Oct 14 '09 at 2:23
51
...
How to ALTER multiple columns at once in SQL Server
...same character in multiple fields (such as removing \t from all columns).
SELECT
TABLE_CATALOG
,TABLE_SCHEMA
,TABLE_NAME
,COLUMN_NAME
,'ALTER TABLE ['+TABLE_SCHEMA+'].['+TABLE_NAME+'] ALTER COLUMN ['+COLUMN_NAME+'] VARCHAR(300)' as 'code'
FROM INFORMATION_SCHEMA.COLUMNS
WHERE T...
Fixing “Lock wait timeout exceeded; try restarting transaction” for a 'stuck" Mysql table?
...
You can check the currently running transactions with
SELECT * FROM `information_schema`.`innodb_trx` ORDER BY `trx_started`
Your transaction should be one of the first, because it's the oldest in the list. Now just take the value from trx_mysql_thread_id and send it the KILL ...
How to create an array from a CSV file using PHP and the fgetcsv function
...convert a csv string to an array. The function knows how to escape special characters, and it works with or without enclosure chars.
$dataArray = csvstring_to_array( file_get_contents('Address.csv'));
I tried it with your csv sample and it works as expected!
function csvstring_to_array($string, ...
sizeof single struct member in C
...->member)
and use it like this:
typedef struct
{
float calc;
char text[255];
int used;
} Parent;
typedef struct
{
char flag;
char text[member_size(Parent, text)];
int used;
} Child;
I'm actually a bit surprised that sizeof((type *)0)->member) is even allowed as a ...