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How to create a memory leak in Java?
...ring, if the string is a substring, the leak is even worse (the underlying char[] is also leaked) - in Java 7 substring also copies the char[], so the later doesn't apply; @Daniel, no needs for votes, though.
I'll concentrate on threads to show the danger of unmanaged threads mostly, don't wish t...
What is the best collation to use for MySQL with PHP? [closed]
...
The main difference is sorting accuracy (when comparing characters in the language) and performance. The only special one is utf8_bin which is for comparing characters in binary format.
utf8_general_ci is somewhat faster than utf8_unicode_ci, but less accurate (for sorting). The ...
How to make good reproducible pandas examples
... {0: 'aapl', 1: 'aapl', 2: 'aapl', 3: 'aapl', 4: 'aapl'}}
>>> pd.concat([stocks.head(), stocks.tail()], ignore_index=True).to_dict()
{'date': {0: Timestamp('2011-01-01 00:00:00'),
1: Timestamp('2011-01-01 00:00:00'),
2: Timestamp('2011-01-01 00:00:00'),
3: Timestamp('2011-01-01 00:00...
Adding gif image in an ImageView in android
...= 0; i < 11; i++) {
app += (char) block[i];
}
if (app.equals("NETSCAPE2.0")) {
readNetscapeExt();
} e...
Coding Practices which enable the compiler/optimizer to make a faster program
...s efficient than reading 1024 octets with one read.
Example:
static const char Menu_Text[] = "\n"
"1) Print\n"
"2) Insert new customer\n"
"3) Destroy\n"
"4) Launch Nasal Demons\n"
"Enter selection: ";
static const size_t Menu_Text_Length = sizeof(Menu_Text) - sizeof('\0');
//....
What does “fragment” mean in ANTLR?
... and results:
Alphabet.g4 (Case1)
grammar Alphabet;
content : (rule0|ANYCHAR)* EOF;
rule0 : RULE1 | RULE2 | RULE3 ;
RULE1 : [A-C]+ ;
RULE2 : [DEF]+ ;
RULE3 : ('G'|'H'|'I')+ ;
ANYCHAR : . -> skip;
Result:
# Input data (for reference)
# ABBCCCDDDDEEEEE ABCDE
# FFGGHHIIJJKK FGHIJK
# ABCDEF...
C语言面试那些事儿──一道指针与数组问题 - c++1y / stl - 清泛IT社区，为创新赋能！
首先看如下代码：
int main(int argc, char** argv)
{
int a[5] = {1,2,3,4,5};
int* ptr = (int*)(&a + 1);
printf("%d,%d\n", *(a+1), *(ptr-1));
return 0;
}复制代码这道题在很多所谓经典C语言面试题里是常见...
What's the need of array with zero elements?
...ther words, if you have:
struct something
{
/* other variables */
char data[];
}
struct something *var = malloc(sizeof(*var) + extra);
You can access var->data with indices in [0, extra). Note that sizeof(struct something) will only give the size accounting for the other variables, i....
Remove final character from string [duplicate]
Let's say my string is 10 characters long.
2 Answers
2
...
window+nginx+php-cgi的php-cgi线程/子进程问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
/* Pre-fork, if required */
if (getenv("PHP_FCGI_CHILDREN")) {
char * children_str = getenv("PHP_FCGI_CHILDREN");
...
So, php with fast-cgi will **never** work on Windows.
The question is, why is forking disabled under windows?
-------------https://bugs.php.net/bug.ph...