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XSD - how to allow elements in any order any number of times?
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– C. M. Sperberg-McQueen
Mar 8 '14 at 1:05
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show 3 more comments
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How do you allow spaces to be entered using scanf?
...hout specifying a field width. You should also check the return values for errors:
#include <stdio.h>
#define NAME_MAX 80
#define NAME_MAX_S "80"
int main(void)
{
static char name[NAME_MAX + 1]; // + 1 because of null
if(scanf("%" NAME_MAX_S "[^\n]", name) != 1)
{
fpu...
How to disable and re-enable console logging in Python?
...EBUG,
'info': logging.INFO,
'warning': logging.WARNING,
'error': logging.ERROR,
'critical': logging.CRITICAL
So, if you set your_level to logging.CRITICAL, you will get only critical messages sent by:
logging.critical('This is a critical error message')
Setting your_lev...
Change key pair for ec2 instance
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answered Oct 24 '11 at 21:05
Eric HammondEric Hammond
20.8k44 gold badges6161 silver badges7272 bronze badges
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Checking images for similarity with OpenCV
...images ( same size/orientation )
// Compare two images by getting the L2 error (square-root of sum of squared error).
double getSimilarity( const Mat A, const Mat B ) {
if ( A.rows > 0 && A.rows == B.rows && A.cols > 0 && A.cols == B.cols ) {
// Calculate the L2 r...
Getting a File's MD5 Checksum in Java
...eInputStream? Sounds like you used FileInputStream, which would cause this error.
– erickson
Dec 17 '12 at 17:16
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When should I use GC.SuppressFinalize()?
...obert Paulson
16.2k44 gold badges3131 silver badges5050 bronze badges
1
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difference between foldLeft and reduceLeft in Scala
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For reference, reduceLeft will error if applied to an empty container with the following error.
java.lang.UnsupportedOperationException: empty.reduceLeft
Reworking the code to use
myList foldLeft(List[String]()) {(a,b) => a+b}
is one potential op...
Can pandas automatically recognize dates?
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Did not work for me, I got the following error: TypeError: strptime() argument 1 must be str, not float
– Jean Paul
May 4 '17 at 12:36
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How to concatenate strings of a string field in a PostgreSQL 'group by' query?
... ') AS semi_colon_separated_names FROM things;
But this will be a syntax error:
SELECT string_agg(name, '; ' ORDER BY name) AS semi_colon_separated_names FROM things;
--> ERROR: syntax error at or near "ORDER"
Tested on PostgreSQL 8.3.
CREATE FUNCTION string_agg_transfn(text, text, text)
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