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const char *, char const *, char * const 异同？const修饰符各位置有何区...
const char *, char const *, char * const 异同？const修饰符各位置有何区别？const char * p = new char('a'); 这个是常字符，即p的内容不能被修改。char const * p 意义同上，没有区别。 这时，*...const char * p = new char('a'); 这个是常字符，即p的内容...
C read file line by line
... printf(line) is wrong! Do not do this. This opens your code to a string format vulnerability where you can freely read/write directly to memory via the stuff being printed. If I were to put %n/%p in the file and point the pointer back to an address in memory (in the string from the file) t...
Can a C++ enum class have methods?
...r.
You could easily add methods such that:
Fruit f("Apple");
and
f.ToString();
can be supported.
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How to convert SecureString to System.String?
All reservations about unsecuring your SecureString by creating a System.String out of it aside , how can it be done?
11 A...
Import CSV file to strongly typed data structure in .Net [closed]
...
Use an OleDB connection.
String sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\InputDirectory\\;Extended Properties='text;HDR=Yes;FMT=Delimited'";
OleDbConnection objConn = new OleDbConnection(sConnectionString);
objConn.Open()...
PostgreSQL Crosstab Query
... the provided input query: row_name, category, value. There is no room for extra columns like in the 2-parameter alternative below.
Safe form
crosstab(text, text) with 2 input parameters:
SELECT *
FROM crosstab(
'SELECT section, status, ct
FROM tbl
ORDER BY 1,2' -- could also ju...
Get an OutputStream into a String
What's the best way to pipe the output from an java.io.OutputStream to a String in Java?
5 Answers
...
Best practice multi language website
...e our translated files instead of calling a translation function for every string in the file:
// This function was written by Thomas Bley, not by me
function translate($file) {
$cache_file = 'cache/'.LANG.'_'.basename($file).'_'.filemtime($file).'.php';
// (re)build translation?
if (!file_ex...
How can I get a file's size in C++? [duplicate]
...of the c runtime library on Windows, Mac and Linux.
long GetFileSize(std::string filename)
{
struct stat stat_buf;
int rc = stat(filename.c_str(), &stat_buf);
return rc == 0 ? stat_buf.st_size : -1;
}
or
long FdGetFileSize(int fd)
{
struct stat stat_buf;
int rc = fstat(fd...
How to pass an object from one activity to another on Android
...ublic class Deneme implements Serializable {
public Deneme(double id, String name) {
this.id = id;
this.name = name;
}
public double getId() {
return id;
}
public void setId(double id) {
this.id = id;
}
public String getName() {
...