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Which is faster: Stack allocation or Heap allocation
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answered Oct 2 '08 at 6:09
Torbjörn GyllebringTorbjörn Gyllebring
16.4k22 gold badges2727 silver badges2222 bronze badges
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How can I check if a file exists in Perl?
...mething exists at given path using the -e file-test operator.
print "$base_path exists!\n" if -e $base_path;
However, this test is probably broader than you intend. The code above will generate output if a plain file exists at that path, but it will also fire for a directory, a named pipe, a syml...
Hash String via SHA-256 in Java
...e this to UTF-16 if needed
md.update(text.getBytes(StandardCharsets.UTF_8));
byte[] digest = md.digest();
String hex = String.format("%064x", new BigInteger(1, digest));
System.out.println(hex);
}
}
In the snippet above, digest contains the hashed string and hex contains a hexad...
Find location of a removable SD card
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161
Environment.getExternalStorageState() returns path to internal SD mount point like "/mnt/sdcar...
Difference between CouchDB and Couchbase
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563
I think there are some essential differences between CouchDB and Couchbase Server that need to ...
How to import a class from default package
... ".C" File's function/method to this one:
JNIEXPORT jint JNICALL
Java_com_mypackage_Calculations_Calculate(JNIEnv *env, jobject obj, jint contextId)
{
//code goes here
}
JNIEXPORT jdouble JNICALL
Java_com_mypackage_Calculations_GetProgress(JNIEnv *env, jobject obj, jint contextId)
{
//co...
Nginx no-www to www and www to no-www
...eaders.
Redirect everything to SSL (personal config on UNIX with IPv4, IPv6, SPDY, ...):
#
# Redirect all www to non-www
#
server {
server_name www.example.com;
ssl_certificate ssl/example.com/crt;
ssl_certificate_key ssl/example.com/key;
listen *:80;
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Generating a drop down list of timezones with PHP
...ugh it.
– Nathan J.B.
Jul 3 '13 at 16:00
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show 5 more comments
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When to use single quotes, double quotes, and backticks in MySQL
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638
Backticks are to be used for table and column identifiers, but are only necessary when the ide...
App restarts rather than resumes
...ions, I see no reason why it isn't valid.
– javahead76
Aug 13 '14 at 5:56
3
I think this is the p...