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Hashing a file in Python
...n't that useful here - common values are 4 KiB or 8 KiB, something in that range, i.e. something much smaller than the 128 KiB - 128 KiB is generally a good choice. mmap doesn't help much in our use case as we sequentially read the complete file from front to back. mmap has advantages when the acces...
How does Google calculate my location on a desktop?
...ou need is good seeding. After that, it extends in "50 meters chunks" (the range of a newly found wifi connection).
Of course, if you really want the system go banana, you can start exchanging wifi routers around the globe with fellow revolutionaries of the no-global-positioning movement.
...
Do browsers send “\r\n” or “\n” or does it depend on the browser?
...a few of those around. The Unicode standard (section 5.8) specifies a wide range of character sequences that should be recognized as line terminators; there's a list of them here.)
share
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improve t...
Default value in Go's method
...args ...interface{}) string {
a := "default-a"
b := 5
for _, arg := range args {
switch t := arg.(type) {
case string:
a = t
case int:
b = t
default:
panic("Unknown argument")
}
}
return fmt.Sprintf("%s%d", a, b)
}
...
What is the fastest way to send 100,000 HTTP requests in Python?
...lt(status, url):
print status, url
q = Queue(concurrent * 2)
for i in range(concurrent):
t = Thread(target=doWork)
t.daemon = True
t.start()
try:
for url in open('urllist.txt'):
q.put(url.strip())
q.join()
except KeyboardInterrupt:
sys.exit(1)
This one is sligh...
How do you determine the size of a file in C?
...eturn long int from ftell(). (unsigned long) casting does not improve the range as already limited by the function. ftell() return -1 on error and that get obfuscated with the cast. Suggest fsize() return the same type as ftell().
– chux - Reinstate Monica
J...
Why do x86-64 systems have only a 48 bit virtual address space?
...oint being that we can't put enough RAM in a PC to support this restricted range, let alone what would be required for a full 64-bit address space.
– Damien_The_Unbeliever
Jul 18 '11 at 11:10
...
How do I determine the size of my array in C?
...dard says is that integer values from 0 to 127 can be represented, and its range is at least either -127 to 127 (char is signed) or 0 to 255 (char is unsigned).
– vonbrand
Feb 1 '13 at 20:57
...
How do we control web page caching, across all browsers?
... this:
Cache-Control: no-store
<body onunload="">
Below shows the raw logs of my tests:
HTTP:
Cache-Control: private, no-cache, no-store, must-revalidate, max-age=0, proxy-revalidate, s-maxage=0
Expires: 0
Pragma: no-cache
Vary: *
<body onunload="">
Fail: Opera 12.15
Success: Chrom...
Can functions be passed as parameters?
...nt {
var a = make([]int, len(alist), len(alist))
for index, val := range alist {
a[index] = f(val)
}
return a
}
func main() {
alist := []int{4, 5, 6, 7}
result := mapper(square, alist)
fmt.Println(result)
}
...