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Concatenate two slices in Go
...ough options for the task.
la := len(a)
c := make([]int, la, la + len(b))
_ = copy(c, a)
c = append(c, b...)
la := len(a)
c := make([]int, la + len(b))
_ = copy(c, a)
_ = copy(c[la:], b)
share
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...use a query like this: "start transaction; create temporary table temporary_table as select * from test where false; copy temporary_table from 'data_file.csv'; lock table test; update test set data=temporary_table.data from temporary_table where test.id=temporary_table.id; insert into test select * ...
How do I speed up the gwt compiler?
...ur gwt.xml:
<define-property name="user.agent" values="ie6,gecko,gecko1_8"></define-property>
or in gwt 2.x syntax, and for one browser only:
<set-property name="user.agent" value="gecko1_8"/>
This, for example, will compile your application for IE and FF only. If you know yo...
How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
...
Version 2012
Click download button and check ENU\x64\SQLManagementStudio_x64_ENU.exe
Version 2014
Click download button and check MgmtStudio 64BIT\SQLManagementStudio_x64_ENU.exe
Open Microsoft SQL Management Studio.
Backup original database to .BAK file (db -> Task -> Backup).
Create em...
Why is the gets function so dangerous that it should not be used?
...need to use a wrapper around fgets() that deletes the newline:
char *fgets_wrapper(char *buffer, size_t buflen, FILE *fp)
{
if (fgets(buffer, buflen, fp) != 0)
{
size_t len = strlen(buffer);
if (len > 0 && buffer[len-1] == '\n')
buffer[len-1] = '\0';
...
Could not find default endpoint element
...s everywhere.
var remoteAddress = new System.ServiceModel.EndpointAddress(_webServiceUrl);
using (var productService = new ProductClient(new System.ServiceModel.BasicHttpBinding(), remoteAddress))
{
//set timeout
productService.Endpoint.Binding.SendTimeout = new TimeSpan(0,0,0,_webServiceT...
Update relationships when saving changes of EF4 POCO objects
... got from step 3.
SaveChanges();
In the following example "dataobj" and "_categories" are the parameters received by my controller "dataobj" is my main object, and "_categories" is an IEnumerable containing the IDs of the categories the user selected in the view.
db.Entry(dataobj).State = Ent...
Error starting jboss server
...tion. Did you change your JRE version when you reinstalled, say from 1.6.0_17 to _18?
Anyway, the workaround is described in the JIRA issue, and also here. You need to change the content of conf/bootstrap/profile.xml. Look for the definition of the AttachmentStore, and change the constructor line ...
C语言判断文件是否存在 - C/C++ - 清泛网 - 专注C/C++及内核技术
... <stdlib.h>
void main( void )
{
/* Check for existence */
if( (_access( "ACCESS.C", 0 )) != -1 )
{
printf( "File ACCESS.C exists\n" );
/* Check for write permission */
if( (_access( "ACCESS.C", 2 )) != -1 )
printf( "File ACCESS.C has write permission\n"...
What is a bus error?
...
In my case, a method static_casted a void * parameter to an object that stores a callback (one attribute points to the object and the other to the method). Then the callback is called. However, what was passed as void * was something completely differe...