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How do I install cygwin components from the command line?
...tended setup mode').
(Note that you need to use setup-x86.exe or setup-x86_64.exe as appropriate.)
See http://cygwin.com/packages/ for the package list.
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Programmatically retrieve memory usage on iPhone
...icture of usage over-all.
#import <mach/mach.h>
// ...
void report_memory(void) {
struct task_basic_info info;
mach_msg_type_number_t size = TASK_BASIC_INFO_COUNT;
kern_return_t kerr = task_info(mach_task_self(),
TASK_BASIC_INFO,
...
How can I replace every occurrence of a String in a file with PowerShell?
...
(Get-Content file.txt) |
Foreach-Object {$_ -replace '\[MYID\]','MyValue'} |
Out-File file.txt
Note the parentheses around (Get-Content file.txt) is required:
Without the parenthesis the content is read, one line at a time, and flows down the pipeline until i...
Why do I have to access template base class members through the this pointer?
...
Short answer: in order to make x a dependent name, so that lookup is deferred until the template parameter is known.
Long answer: when a compiler sees a template, it is supposed to perform certain checks immediately, without seeing the templ...
Django in / not in query
...
table1.objects.exclude(id__in=
table2.objects.filter(your_condition).values_list('id', flat=True))
The exclude function works like the Not operator you where asking for. The attribute flat = True tells to table2 query to return the value_list a...
How do I size a UITextView to its content?
...
I recommend to use CGFLOAT_MAX macro instead of MAXFLOAT. Proper on both of 32/64 bit platforms.
– eonil
Aug 27 '14 at 14:18
...
How to use ng-repeat without an html element
...or object before each element and iterate the new var: <div class="c477_group"> <div class="c477_group_item" ng-repeat="item in itemsWithSeparator" ng-switch="item.id" ng-class="{'-divider' : item.id == 'SEPARATOR'}"> <div class="c478" ng-switch-when="FAS"/> <div class="c4...
UIBarButtonItem with custom image and no border
...m.h>
@interface CCFBarButtonItem : UIBarButtonItem
{
@protected
id _originalTarget;
}
- (id)initWithImage:(UIImage *)image target:(id)target action:(SEL)action;
@end
and CCFBarButtonItem.m
#import "CCFBarButtonItem.h"
#import <UIKit/UIButton.h>
#import <UIKit/UIView.h>
#import...
How do you query for “is not null” in Mongo?
...
db.collection_name.find({"filed_name":{$exists:true}});
fetch documents that contain this filed_name even it is null.
My proposition:
db.collection_name.find({"field_name":{$type:2}}) //type:2 == String
You can check on the required...
Python: most idiomatic way to convert None to empty string?
...ot ''. s(0) should return '0', not ''. Likewise for an object that defines __bool__ or __nonzero__.
– Oddthinking
May 13 '17 at 3:27
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