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How do I use valgrind to find memory leaks?
...P SUMMARY:
in use at exit: 0 bytes in 0 blocks
total heap usage: 636 allocs, 636 frees, 25,393 bytes allocated
All heap blocks were freed -- no leaks are possible
ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
...
How to override Backbone.sync?
... = Array.prototype.slice.call(arguments, 0);
// Here, I add the OAuth token (or any other token)
// But before, I check that data exists, if not I add it
if (args[0]['data'] === undefined) {
args[0]['data'] = {};
}
args[0]['data']['token'] = 'any_api_token_here';
re...
Declare slice or make slice?
... }
return p
}
It means that, to append to a slice, you don't have to allocate memory first: the nil slice p int[] is enough as a slice to add to.
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Custom HTTP headers : naming conventions
...d:
message-header = field-name ":" [ field-value ]
field-name = token
field-value = *( field-content | LWS )
field-content = <the OCTETs making up the field-value
and consisting of either *TEXT or combinations
of token, separators, and ...
Unmangling the result of std::type_info::name
...o abi::__cxa_demangle() is successful, returns a pointer to a local, stack allocated array... ouch!
Also note that if you provide a buffer, abi::__cxa_demangle() assumes it to be allocated on the heap. Allocating the buffer on the stack is a bug (from the gnu doc): "If output_buffer is not long enou...
Returning a C string from a function
...9+1 (=10!) bytes. This is important to know when you finally get around to allocating strings dynamically.
So, without this 'terminating zero', you don't have a string. You have an array of characters (also called a buffer) hanging around in memory.
Longevity of data:
The use of the function this...
Convert a bitmap into a byte array
...an code. The simplest way is to pin the array: GCHandle handle = GCHandle.Alloc(bufferarray, GCHandleType.Pinned); get the pointer to the array IntPtr iptr = Marshal.UnsafeAddrOfPinnedArrayElement(bufferarray, 0); then create a new bitmap using the IntPtr: bitmap = new Bitmap(width, height, (width ...
Is it wrong to place the tag after the tag?
...ee the snippet from WebKit for example:
void HTMLParser::processCloseTag(Token* t)
{
// Support for really broken html.
// we never close the body tag, since some stupid web pages close it before
// the actual end of the doc.
// let's rely on the end() call to close things.
if...
Pick a random value from an enum?
... private final E[] values;
public RandomEnum(Class<E> token) {
values = token.getEnumConstants();
}
public E random() {
return values[RND.nextInt(values.length)];
}
}
}
Edit: Oops, I forgot the bounded type parameter, <E ...
How to getText on an input in protractor
...
You can try something like this
var access_token = driver.findElement(webdriver.By.name("AccToken"))
var access_token_getTextFunction = function() {
access_token.getText().then(function(value) {
console.log(value);
...