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How can I programmatically get the MAC address of an iphone
... to use it
InitAddresses();
GetIPAddresses();
GetHWAddresses();
int i;
NSString *deviceIP = nil;
for (i=0; i<MAXADDRS; ++i)
{
static unsigned long localHost = 0x7F000001; // 127.0.0.1
unsigned long theAddr;
theAddr = ip_addrs[i];
if (theAddr == 0) break;
if (theAddr...
How do I flush the cin buffer?
...implest, is to use std::getline() for example:
std::getline(std::cin, yourString);
... that will discard the input stream when it gets to a new-line. Read more about this function here.
Another option that directly discards the stream is this...
#include <limits>
// Possibly some other co...
Remove spaces from std::string in C++
What is the preferred way to remove spaces from a string in C++? I could loop through all the characters and build a new string, but is there a better way?
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Undefined reference to static constexpr char[]
...n initializer.
So then the question becomes, is baz odr-used here:
std::string str(baz);
and the answer is yes, and so we require a namespace scope definition as well.
So how do we determine if a variable is odr-used? The original C++11 wording in section 3.2 [basic.def.odr] says:
An expr...
How to check if character is a letter in Javascript?
I am extracting a character in a Javascript string with:
14 Answers
14
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maximum value of int
... time how many bits the int has on machine or compiler nor need we include extra libraries.
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How to achieve function overloading in C?
...ce, and you need to mess about a bit if you want your overloads to support string literals. Still overall pretty cool though.
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How can I hash a password in Java?
...der enc = Base64.getEncoder();
System.out.printf("salt: %s%n", enc.encodeToString(salt));
System.out.printf("hash: %s%n", enc.encodeToString(hash));
Here's a utility class that you can use for PBKDF2 password authentication:
import java.security.NoSuchAlgorithmException;
import java.security.Secu...
Obfuscated C Code Contest 2006. Please explain sykes2.c
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__TIME__ is a special macro defined by the preprocessor. It expands to a string constant containing the time at which the preprocessor was run, in the form "HH:MM:SS". Observe that it contains exactly 8 characters. Note that 0-9 have ASCII values 48 through 57 and : has ASCII value 58. The output ...
How can I remove a character from a string using Javascript?
...st isn't right.
All I would like to do is remove the character r from a string.
The problem is, there is more than one instance of r in the string.
However, it is always the character at index 4 (so the 5th character).
...