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How to convert a number to string and vice versa in C++
...tring streams
#include <string>
int main()
{
int number = 1234;
std::ostringstream ostr; //output string stream
ostr << number; //use the string stream just like cout,
//except the stream prints not to stdout but to a string.
std::string theNumberString = ost...
set DateTime to start of month
...ou using "var" instead of "DateTime"?
– markthewizard1234
Jul 23 '15 at 8:36
4
@markthewizard1234...
Generate random numbers uniformly over an entire range
...ors are typically deterministic. For example, if first rand call returns 0x1234 and second 0x5678, then you get 0x12345678. That is the only number that you can get that starts with 0x1234, because next number will always be 0x5678. You get 32-bit results, but you only have 32768 possible numbers.
...
How to remove leading zeros from alphanumeric text?
...t the entire string will be matched.
Test harness:
String[] in = {
"01234", // "[1234]"
"0001234a", // "[1234a]"
"101234", // "[101234]"
"000002829839", // "[2829839]"
"0", // "[0]"
"0000000", // "[0]"
"0000009", // "[9]"
...
Can't stop rails server
...llowing are steps to kill server process:
1. lsof -i tcp:3000
2. kill -9 1234
where 1234 is the PID of process: localhost:3000 display in step 1.
OR
Remove file(server.pid) under Rails.root/tmp/pids/ and restart server.
OR
open app in another port by using command:
rails s -p 3001
...
Unable to resolve host “”; No address associated with hostname [closed]
...ttp.proxyHost", "my.proxyhost.com");
System.setProperty("http.proxyPort", "1234");
2 Your browser has access to internet. not app
3 can be an SSL issue if URL is secured
share
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improve this answ...
What's the difference of “./configure” option “--build”, “--host” and “--target”?
...s
so that you could putty on to your embedded device and run "gdbserver :1234 a.out" to start debugging and listen on port 1234.
You would then build your debugging client (which connects to and controls the gdbserver) with
./configure --build=powerpc --host=i686 --target=mips
which you woul...
The tilde operator in C
... that ~x + 1 gives the same value as -x. For example, printf("%hx %hx\n", -1234, ~1234 + 1) prints fb2e fb2e on my machine.
– Steve Summit
Jan 26 '16 at 23:00
...
How do you express binary literals in Python?
...
int(hex(1234), 16) = 1234 :D
– Jean Monet
Sep 12 at 11:10
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Printing the correct number of decimal points with cout
...lt;iomanip>
int main(int argc, char** argv)
{
float testme[] = { 0.12345, 1.2345, 12.345, 123.45, 1234.5, 12345 };
std::cout << std::setprecision(2) << std::fixed;
for(int i = 0; i < 6; ++i)
{
std::cout << testme[i] << std::endl;
}
re...