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What does {0} mean when initializing an object?
... initialized shall be
default-initialized.
Example:
struct S { int a; char* b; int c; };
S ss = { 1, "asdf" };
initializes ss.a with 1, ss.b with
"asdf", and ss.c with the value of an
expression of the form int(), that is,
0.
You can find the complete spec on this topic here
...
How can I hash a password in Java?
...te[16];
random.nextBytes(salt);
KeySpec spec = new PBEKeySpec("password".toCharArray(), salt, 65536, 128);
SecretKeyFactory f = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
byte[] hash = f.generateSecret(spec).getEncoded();
Base64.Encoder enc = Base64.getEncoder();
System.out.printf("salt: %s...
How to replace all occurrences of a character in string?
What is the effective way to replace all occurrences of a character with another character in std::string ?
15 Answers
...
Passing base64 encoded strings in URL
...ed to url-encode it, since base64 strings can contain the "+", "=" and "/" characters which could alter the meaning of your data - look like a sub-folder.
Valid base64 characters are below.
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=
...
Java / Android - How to print out a full stack trace?
...("\n"));
if (cs.contains(replace)) {
return r1.concat(cs.subSequence(cs.indexOf(replace) + replace.length(), cs.length()).toString()
techniques for obscuring sensitive strings in C++
...void this. If for example you are sending the key off to a server, send it character by character, so the whole string is never around. Of course, if you are using it from something like RSA encoding, then this is trickier.
4) Do an ad-hoc algorithm -- on top of all this, add a unique twist or two....
Number of lines in a file in Java
...
byte[] c = new byte[1024];
int count = 0;
int readChars = 0;
boolean empty = true;
while ((readChars = is.read(c)) != -1) {
empty = false;
for (int i = 0; i < readChars; ++i) {
if (c[i] == '\n') {
...
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize
...maven script /$MAVEN-HOME/bin/mvn, found the following line
MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
Where $MAVEN_PROJECTBASEDIR by default is your home directory.
So two places you can take a look, first is file $MAVEN_PROJECTBASEDIR/.mvn/jvm.config if it ...
Android: TextView automatically truncate and replace last 3 char of String
...d:inputType="text" . What I need now is something that replaces the last 3 characters of my String with " ... ". Since I'm not using a monospace font this will always be different depending on the letters used in my String . So I'm wondering what's the best way to get the last 3 characters of a S...
Difference between int32, int, int32_t, int8 and int8_t
...ktop/server machines, it probably won't be.
Oops -- missed the part about char. You'd use int8_t instead of char if (and only if) you want an integer type guaranteed to be exactly 8 bits in size. If you want to store characters, you probably want to use char instead. Its size can vary (in terms of ...