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How to view the assembly behind the code using Visual C++?
...umptions about the string it's processing (and ignores max-length safety / allocation by using a big buffer) on the result of GetModuleFileNameA would be much less total machine code.)
IDK why, but cout << p.string() << endl only shows the basename (i.e. the filename, without the direct...
Make a program run slowly
...ll not slow down the execution speed per se, but will make Linux scheduler allocate less (and possibly shorter) execution time frames, preempt more often, etc. See Process Scheduling (Chapter 10) of Understanding the Linux Kernel for more details on scheduling.
You may want to increase the timer int...
UIButton inside a view that has a UITapGestureRecognizer
...strure
UITapGestureRecognizer *tapGestRecog = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(screenTappedOnce)];
[tapGestRecog setNumberOfTapsRequired:1];
[self.view addGestureRecognizer:tapGestRecog];
// This line is very important. if You don't add it then your ...
How can I iterate over an enum?
...
Except now you've actually allocated memory when an enum, provided it is zero-indexed and strictly continous, can do that task without allocating memory.
– Cloud
Jan 17 '14 at 23:02
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How to get execution time in rails console?
...u already see during requests.
Sample:
[METRICS] Completed in 908.3ms | Allocations: 2894 | ActiveRecord: 0.9ms (queries: 13)
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How to throw an exception in C?
...r.c
#include <stdlib.h>
#include <stdint.h>
extern void *__cxa_allocate_exception(size_t thrown_size);
extern void __cxa_throw (void *thrown_exception, void* *tinfo, void (*dest) (void *) );
extern void * _ZTIl; // typeinfo of long
int bar1()
{
int64_t * p = (int64_t*)__cxa_allocate_e...
How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?
...olorSpaceCreateDeviceRGB();
unsigned char *rawData = (unsigned char*) calloc(height * width * 4, sizeof(unsigned char));
NSUInteger bytesPerPixel = 4;
NSUInteger bytesPerRow = bytesPerPixel * width;
NSUInteger bitsPerComponent = 8;
CGContextRef context = CGBitmapContextCreate(raw...
How to read from standard input in the console?
..."Text returns the most recent token generated by a call to Scan as a newly allocated string holding its bytes." which exactly answers your question. golang.org/pkg/bufio/#Scanner.Text
– Naren Yellavula
Jul 21 at 7:55
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Building big, immutable objects without using constructors having long parameter lists
...ore instances than necessary - isn't really that much of a problem. Object allocation is very cheap, as is garbage collection of short-lived objects. When escape analysis is enabled by default, this kind of "intermediate objects" are likely to be stack allocated and cost literally nothing to create....
Rails migration for has_and_belongs_to_many join table
...he table gets really big then you may want to be able to save space by not allocating another id for each relationship.
– docwhat
Jun 5 '11 at 3:39
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