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How to throw std::exceptions with variable messages?
... {
stream_ << value;
return *this;
}
std::string str() const { return stream_.str(); }
operator std::string () const { return stream_.str(); }
enum ConvertToString
{
to_str
};
std::string operator >> (ConvertToString) { r...
Get nth character of a string in Swift programming language
How can I get the nth character of a string? I tried bracket( [] ) accessor with no luck.
45 Answers
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Find the nth occurrence of substring in a string
...tive approach would be the usual way, I think.
Here's an alternative with string-splitting, which can often be useful for finding-related processes:
def findnth(haystack, needle, n):
parts= haystack.split(needle, n+1)
if len(parts)<=n+1:
return -1
return len(haystack)-len(pa...
How to import CSV file data into a PostgreSQL table?
...col1': sqlalchemy.types.NUMERIC,
'col2': sqlalchemy.types.String}) #Datatypes should be [sqlalchemy types][1]
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Why use strict and warnings?
...erl to code properly which could be forcing declaration, being explicit on strings and subs i.e. barewords or using refs with caution. Note: if there are errors use strict will abort the execution if used.
While use warnings; will help you find typing mistakes in program like you missed a semicolon...
How can I get the MAC and the IP address of a connected client in PHP?
...dress" and use substr() function to
retrieve the adress from this long string.
here in my case i'm using a french cmd.
you can change the numbers according adress mac position in the string.
*/
echo substr(shell_exec ("ipconfig/all"),1821,18);
?>
...
momentJS date string add 5 days
i have a start date string "20.03.2014" and i want to add 5 days to this with moment.js but i don't get the new date "25.03.2014" in the alert window.
...
Best way to replace multiple characters in a string?
...ll the methods in the current answers along with one extra.
With an input string of abc&def#ghi and replacing & -> \& and # -> \#, the fastest way was to chain together the replacements like this: text.replace('&', '\&').replace('#', '\#').
Timings for each function:
a)...
Why charset names are not constants?
...
The simple answer to the question asked is that the available charset strings vary from platform to platform.
However, there are six that are required to be present, so constants could have been made for those long ago. I don't know why they weren't.
JDK 1.4 did a great thing by introducing t...
How to change height of grouped UITableView header?
...w *)tableView heightForHeaderInSection:(NSInteger)section {
// Removes extra padding in Grouped style
return CGFLOAT_MIN;
}
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
// Removes extra padding in Grouped style
return CGFLOAT_MIN;
}
S...