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iOS Detect 3G or WiFi
...der] carrierName];
if ([netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyGPRS]) {
NSLog(@"2G");
} else if ([netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyEdge]) {
NSLog(@"2G");
} else if ([netinfo.currentRadioAcces...
C++ templates Turing-complete?
...;
template<int n>
struct State {
enum { value = n };
static char const * name;
};
template<int n>
char const* State<n>::name = "unnamed";
struct QAccept {
enum { value = -1 };
static char const* name;
};
struct QReject {
enum { value = -2 };
static char ...
Share cookie between subdomain and domain
....
and RFC 6265 section 5.1.3 Domain Matching
Domain Matching
A string domain-matches a given domain string if at least one of the following conditions hold:
The domain string and the string are identical. (Note that both
the domain string and the string will have been canoni...
What's the best way to get the last element of an array without deleting it?
...))[0]; || NULL | NULL | NULL | string(1) "d" | string(1) "c" | int(99) | int(99999) || NULL | NULL | NULL | string(1) "d" | string(1) "c" | int(99) | int(99999) || NULL | NULL | NULL |...
Python: How to create a unique file name?
...
uuid seems to create a long unique string. I dont think its better to have file name with long string and UUID, () in it.
– MysticCodes
Jun 3 '10 at 10:37
...
Repeating characters in VIM insert mode
Is there a way of repeating a character while in Vim's insert mode? For example, say I would like to insert 80 dashes, in something like emacs I would type:
...
How do I get the path of a process in Unix / Linux
...swers were specific to linux.
If you need also unix, then you need this:
char * getExecPath (char * path,size_t dest_len, char * argv0)
{
char * baseName = NULL;
char * systemPath = NULL;
char * candidateDir = NULL;
/* the easiest case: we are in linux */
size_t buff_len;
...
What is the best way to use a HashMap in C++?
...lude <cassert>
int main(int argc, char **argv)
{
std::map<std::string, int> m;
m["hello"] = 23;
// check if key is present
if (m.find("world") != m.end())
std::cout << "map contains key world!\n";
// retrieve
std::cout << m["hello"] << '\n';
std::map&...
C＋＋模板的特化 - C/C++ - 清泛网 - 专注C/C++及内核技术
... t1, const T t2)
{
return t1 < t2 ? t2 : t1;
}
template <>
const char* mymax(const char* t1,const char* t2)
{
return (strcmp(t1,t2) < 0) ? t2 : t1;
}
但是你不能这么搞：
template <>
bool mymax(const char* t1,const char* t2)
{
return (strcmp(t1,t2) < 0);
}
其实...
How can I find non-ASCII characters in MySQL?
...
This only works (for me anyway) to find strings that contain NONE of those characters. It does not find strings that contain a mix of ASCII and non-ASCII characters.
– Ian
Sep 11 '18 at 7:24
...