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What is the purpose of using -pedantic in GCC/G++ compiler?
...s OK when I re-enable it (the one program that didn't was explicitly using __int128 types, which are pedantically incorrect). I think there was an intervening stage when GCC was too noisy (for my liking) with -pedantic. I just tested about 300 source files — some library code, some commands, som...
How to check whether a file or directory exists?
...iven file or directory exists
func exists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil { return true, nil }
if os.IsNotExist(err) { return false, nil }
return false, err
}
Edited to add error handling.
...
How do I make a checkbox required on an ASP.NET form?
...ion for client side validation (using jQuery)...
function CheckBoxRequired_ClientValidate(sender, e)
{
e.IsValid = jQuery(".AcceptedAgreement input:checkbox").is(':checked');
}
code-behind for server side validation...
protected void CheckBoxRequired_ServerValidate(object sender, ServerValid...
maximum value of int
...
In C++:
#include <limits>
then use
int imin = std::numeric_limits<int>::min(); // minimum value
int imax = std::numeric_limits<int>::max();
std::numeric_limits is a template type which can be instantiated with other types:
float fmin = std::numeric_limits<float>...
Changing java platform on which netbeans runs
...ble under etc folder inside the NetBeans installation.
Modify the netbeans_jdkhome variable to point to new JDK path, and then
Restart your Netbeans.
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Convert Python dictionary to JSON array
...
If you are fine with non-printable symbols in your json, then add ensure_ascii=False to dumps call.
>>> json.dumps(your_data, ensure_ascii=False)
If ensure_ascii is false, then the return value will be a
unicode instance subject to normal Python str to unicode
coercion rules in...
Openssl is not recognized as an internal or external command
...ple, if the file is unzipped to the location C:\Users\gaurav\openssl-0.9.8k_WIN32, then copy the path C:\Users\gaurav\openssl-0.9.8k_WIN32\bin.
Step 3 Add the path to your system environment path. After your PATH environment variable is set, open the cmd and type this command:
C:\>keytool -expor...
UIWebView open links in Safari
...false
}
return true
}
Swift 3 version:
func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool {
if navigationType == UIWebViewNavigationType.linkClicked {
UIApplication.shared.openURL(request....
How to loop backwards in python? [duplicate]
...
for x in reversed(whatever):
do_something()
This works on basically everything that has a defined order, including xrange objects and lists.
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imp...
What is Lazy Loading?
...:
...
@property
def total(self):
if not hasattr(self, "_total"):
self._total = self.quantity \
+ sum(bi.quantity for bi in self.borroweditem_set.all())
return self._total
Basically, I have an Item class which represents an item in our inven...