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Why isn't std::initializer_list a language built-in?
It seems to me that it's quite an important feature of C++11 and yet it doesn't have its own reserved keyword (or something alike).
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Regular expression for letters, numbers and - _
...et to show how you can use this pattern:
<?php
$arr = array(
'screen123.css',
'screen-new-file.css',
'screen_new.js',
'screen new file.css'
);
foreach ($arr as $s) {
if (preg_match('/^[\w.-]*$/', $s)) {
print "$s is a match\n";
} else {
print "$s is NO match!!!\n";
};
}
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How to programmatically close a JFrame
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17 Answers
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UIStatusBarStyle PreferredStatusBarStyle does not work on iOS 7
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17 Answers
17
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Why does modern Perl avoid UTF-8 by default?
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1151
+500
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Using Kafka as a (CQRS) Eventstore. Good idea?
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126
Kafka is meant to be a messaging system which has many similarities to an event store however ...
Why cast unused return values to void?
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edited May 23 '17 at 12:25
Community♦
111 silver badge
answered Mar 27 '09 at 13:12
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Identify if a string is a number
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1203
int n;
bool isNumeric = int.TryParse("123", out n);
Update As of C# 7:
var isNumeric = int...
CentOS+Nginx+PHP+MySQL详细配置(图解) - 更多技术 - 清泛网 - 专注C/C++及内核技术
... //启动MySQL
#/usr/local/mysql/bin/mysqladmin -u root password 123456 //设置MySQL密码
#cp support-files/my-medium.cnf /etc/my.cnf
#echo "/usr/local/mysql/bin/mysqld_safe &" >>/etc/rc.local
二、安装PCRE
PCRE是perl所用到的正则表达式，目的是让所...