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Test whether string is a valid integer
...q "$1" ] 2>/dev/null
then
echo "$1 is an integer !!"
else
echo "ERROR: first parameter must be an integer."
echo $USAGE
exit 1
fi
This approach also accounts for negative numbers, which some of the other solutions will have a faulty negative result, and it will allow a prefix of...
Automatically start a Windows Service on install
...
This code gave me the following error/s: An exception occurred during the Install phase. System.InvalidOperationException: An exception occurred in the OnAfterInstall event handler of System.ServiceProcess.ServiceInstaller. The inner exception System.Invali...
Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
...e. If the caller calls the function and gives it some argument, that is an error and the compiler spits out an appropriate error.
The second way of declaring a function has plenty of benefits. One of course is that amount and types of parameters are checked. Another difference is that because the ...
Python unittests in Jenkins?
...tests.py
import random
try:
import unittest2 as unittest
except ImportError:
import unittest
class SimpleTest(unittest.TestCase):
@unittest.skip("demonstrating skipping")
def test_skipped(self):
self.fail("shouldn't happen")
def test_pass(self):
self.assertEqua...
How do I flush the PRINT buffer in TSQL?
...
Use the RAISERROR function:
RAISERROR( 'This message will show up right away...',0,1) WITH NOWAIT
You shouldn't completely replace all your prints with raiserror. If you have a loop or large cursor somewhere just do it once or twice ...
Debugging “Element is not clickable at point” error
...
I tried Firefox and found it did not give this error, yet the click was still ignored. It turned out to be the a parent div had a height of zero. Once that was fixed both worked fine.
– dansalmo
Jun 28 '17 at 21:13
...
Finding out whether a string is numeric or not
...)validateString:(NSString *)string withPattern:(NSString *)pattern
{
NSError *error = nil;
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:pattern options:NSRegularExpressionCaseInsensitive error:&error];
NSAssert(regex, @"Unable to create regular expr...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...to 206 and from 300
to 307) but include a message body that describes an error condition.
Doing this prevents HTTP-aware software from detecting errors. For
example, a cache will store it as successful response and serve it to
subsequent clients even when clients may be able to make a succes...
Best practices: throwing exceptions from properties
...or setters they indicate that exceptions are an appropriate and acceptable error handling strategy.
For indexers, Microsoft indicates that it is acceptable for both getters and setters to throw exceptions. And in fact, many indexers in the .NET library do this. The most common exception being Argum...
fatal error: Python.h: No such file or directory
I am trying to build a shared library using a C extension file but first I have to generate the output file using the command below:
...