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Checking for NULL pointer in C/C++ [closed]
..." or "if (ptr != nullptr)" as it is more concise so it makes the code more readable. But I just found out that comparison raises (resp.) warning/error for comparison with NULL/nullptr on recent compilers. So if you want to check a pointer, better to do "if (ptr != NULL)" instead of "if (ptr)". If yo...
How do I use the conditional operator (? :) in Ruby?
...ast case as said issue does not arise.
You can use the "long-if" form for readability on multiple lines:
question = if question.size > 20 then
question.slice(0, 20) + "..."
else
question
end
share
|
...
How to get body of a POST in php?
...ody = file_get_contents('php://input');
Also, the STDIN constant is an already-open stream to php://input, so you can alternatively do:
$entityBody = stream_get_contents(STDIN);
From the PHP manual entry on I/O streamsdocs:
php://input is a read-only stream that allows you to read raw data
...
Why is the String class declared final in Java?
...s very useful to have strings implemented as immutable objects. You should read about immutability to understand more about it.
One advantage of immutable objects is that
You can share duplicates by pointing them to a single instance.
(from here).
If String were not final, you could create a...
Fastest exit strategy for a Panic Button in Crisis/Abuse Websites? [closed]
...
(ALMOST) FINAL EDIT
OK, I've read all the comments and this is what I think is the best solution but I've also thought of an ALL-LOCAL ALTERNATIVE. I'm open to further improvement/discussion
var panic= function(){
document.body.innerHTML = '';
...
How can I convert an image into a Base64 string?
...m using any I/O API
byte[] bytes;
byte[] buffer = new byte[8192];
int bytesRead;
ByteArrayOutputStream output = new ByteArrayOutputStream();
try {
while ((bytesRead = inputStream.read(buffer)) != -1) {
output.write(buffer, 0, bytesRead);
}
}
catch (IOException e) {
e.printStackT...
获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
... , MAX_PATH);
dumpPath.append(index);
//opening mass storage for reading
//requires administrator privilege
HANDLE hDump( ::Create File (
dumpPath.c_str(),
GENERIC_READ,
FILE _SHARE_READ | FILE _SHARE_WRITE,
NULL,
OPEN_EXISTING,
...
获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
... , MAX_PATH);
dumpPath.append(index);
//opening mass storage for reading
//requires administrator privilege
HANDLE hDump( ::Create File (
dumpPath.c_str(),
GENERIC_READ,
FILE _SHARE_READ | FILE _SHARE_WRITE,
NULL,
OPEN_EXISTING,
...
获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
... , MAX_PATH);
dumpPath.append(index);
//opening mass storage for reading
//requires administrator privilege
HANDLE hDump( ::Create File (
dumpPath.c_str(),
GENERIC_READ,
FILE _SHARE_READ | FILE _SHARE_WRITE,
NULL,
OPEN_EXISTING,
...
获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
... , MAX_PATH);
dumpPath.append(index);
//opening mass storage for reading
//requires administrator privilege
HANDLE hDump( ::Create File (
dumpPath.c_str(),
GENERIC_READ,
FILE _SHARE_READ | FILE _SHARE_WRITE,
NULL,
OPEN_EXISTING,
...