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How to parse a string to an int in C++?
...her bases by setting the stream to the correct mode (e.g. ss << std::hex) before trying the conversion. But this means the caller must know a priori what base the number is -- and how can the caller possibly know that? The caller doesn't know what the number is yet. They don't even know that i...
How can I save my secret keys and password securely in my version control system?
...er_openssl script:
#!/bin/bash
SALT_FIXED=<your-salt> # 24 or less hex characters
PASS_FIXED=<your-passphrase>
openssl enc -base64 -aes-256-ecb -S $SALT_FIXED -k $PASS_FIXED
Similar for smudge_filter_open_ssl and diff_filter_oepnssl. See Gist.
Your repo with sensitive information s...
.rar, .zip files MIME Type
...x00
// http://en.wikipedia.org/wiki/RAR
if ($ext == '.rar' and bin2hex($bytes) == '526172211a0700') {
return TRUE;
}
// ZIP magic number: none, though PK\003\004, PK\005\006 (empty archive),
// or PK\007\008 (spanned archive) are common.
// http://en.wikipedia.org/w...
What's the difference between ASCII and Unicode?
...II tables show character codes as 0-127 but UTF-8 tables show the codes as hex and not integers. Is there a reason for this? Why don't UTF-X tables show 0-127/255/65535 versus 00-AF? Does this mean anything?
– wayofthefuture
Jun 16 '17 at 16:31
...
Control the size of points in an R scatterplot?
...2 has several alternative ways to make that look nice - alpha adjustments, hex bins, contour plots, etc. Check out pages 72-77 of the ggplot2 book, if there's one in your library or if your library has electronic access to Springer books (I think most of the R books are in there).
...
Sprintf equivalent in Java
...late printf, but in a different way.
For instance, to convert a value to a hex string, you have the 2 following solutions:
with format(), closest to sprintf():
final static String HexChars = "0123456789abcdef";
public static String getHexQuad(long v) {
String ret;
if(v > 0xffff) ret =...
parseInt vs unary plus, when to use which?
...t of @Alex K., parseInt and parseFloat will parse by character. This means hex and exponent notations will fail since the x and e are treated as non-numerical components (at least on base10).
The unary + will convert them properly though.
parseInt('2e3',10) === 2; //true. This is supposed to be 2...
Why is XOR the default way to combine hashes?
...bly "more prime" than the other constant. I used: std::cout << std::hex << (unsigned long long) ((1.0L/3.14159265358979323846264338327950288419716939937510L)*(powl(2.0L,64.0L))) << std::endl; with cout.precision( numeric_limits<long double>::max_digits10 ); Thanks again Yakk...
Android: textColor of disabled button in selector not showing?
...emas.android.com/apk/res/android" >
<item
android:color="hex_color"
android:state_pressed=["true" | "false"]
android:state_focused=["true" | "false"]
android:state_selected=["true" | "false"]
android:state_checkable=["true" | "false"]
android...
Selector on background color of TextView
...orted (Android Studio treats it as an error).
– Blackhex
Sep 30 '13 at 15:21
@Blackhex Strange. Works fine for me in E...