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How to check if a String contains only ASCII?
The call Character.isLetter(c) returns true if the character is a letter. But is there a way to quickly find if a String only contains the base characters of ASCII?
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MySQL SELECT only not null values
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GROUP_CONCAT(body) AS body
– Ravindra Singh
Sep 12 '19 at 12:11
add a comment
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How do I escape a single quote in SQL Server?
... I tested it on SQL Server 2008:
DECLARE @my_table TABLE (
[value] VARCHAR(200)
)
INSERT INTO @my_table VALUES ('hi, my name''s tim.')
SELECT * FROM @my_table
Results
value
==================
hi, my name's tim.
sh...
printf with std::string?
...style string, you can use the c_str() method of std::string to get a const char * that is null-terminated. Using your example:
#include <iostream>
#include <string>
#include <stdio.h>
int main()
{
using namespace std;
string myString = "Press ENTER to quit program!";
...
AngularJS Folder Structure [closed]
...g
/bower_components
index.html
bower.json
And after grunt build (concat, uglify, rev, etc...):
/scripts
scripts.min.js (all JS concatenated, minified and grunt-rev)
vendor.min.js (all bower components concatenated, minified and grunt-rev)
/views
/styles
...
Iterate over a Javascript associative array in sorted order
...s(list)).map(function(i,e){return n+'='+list[n];}).get().join('&'); // concat for url querystring
– Elaine
Apr 22 '14 at 8:20
1
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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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This should work:
unsigned char reverse(unsigned char b) {
b = (b & 0xF0) >> 4 | (b & 0x0F) << 4;
b = (b & 0xCC) >> 2 | (b & 0x33) << 2;
b = (b & 0xAA) >> 1 | (b & 0x55) << 1;
retu...
How to access the request body when POSTing using Node.js and Express?
...t; {
// on end of data, perform necessary action
body = Buffer.concat(body).toString();
response.write(request.body.user);
response.end();
});
});
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improve this a...
Is std::vector so much slower than plain arrays?
... created. What happens if we change Pixel to:
struct Pixel
{
unsigned char r, g, b;
};
Result: about 10% faster. Still slower than an array. Hm.
# ./vector
UseArray completed in 3.239 seconds
UseVector completed in 5.567 seconds
Idea #4 - Use iterator instead of loop index
How about usin...
C libcurl get output into a string
...
#include <string.h>
#include <curl/curl.h>
struct string {
char *ptr;
size_t len;
};
void init_string(struct string *s) {
s->len = 0;
s->ptr = malloc(s->len+1);
if (s->ptr == NULL) {
fprintf(stderr, "malloc() failed\n");
exit(EXIT_FAILURE);
}
s->pt...