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How do you compare structs for equality in C?
...use memcmp to compare structs for equality due to potential random padding characters between field in structs.
// bad
memcmp(&struct1, &struct2, sizeof(struct1));
The above would fail for a struct like this:
typedef struct Foo {
char a;
/* padding */
double d;
/* padding */
...
vs vs for inline and block code snippets
...ce: (ctrl-U) looks good preceed every line below with %0A)
data:text/html;charset=utf-8,<html >
<script>document.write(window.navigator.userAgent)</script>
<script></script>
<style>
codenza, code {} /* noop mnemonic aide that codenza mimes code tag */
c...
SVG get text element width
...a try. I decided to generate constant values for each individual printable character. Normally this would be kind of tedious, but luckily Firefox happens to be super accurate. Here is my two part brute force solution:
<body>
<script>
var div = doc...
Format date and time in a Windows batch script
...ces with zeros.
Short explanation of how substrings work:
%VARIABLE:~num_chars_to_skip,num_chars_to_keep%
So to get just the year from a date like "29.03.2018" use:
%DATE:~6,4%
^-----skip 6 characters
^---keep 4 characters
...
Build a Basic Python Iterator
...n (defines __getitem__)
Examples:
# generator
def uc_gen(text):
for char in text.upper():
yield char
# generator expression
def uc_genexp(text):
return (char for char in text.upper())
# iterator protocol
class uc_iter():
def __init__(self, text):
self.text = text.upp...
Check if a string contains another string
...ontains a ","(comma) in it. Do we have any other option other than reading char-by-char?
4 Answers
...
How to view the assembly behind the code using Visual C++?
...C++ -> Output Files -> ASM List Location and fill in file name. Also select "Assembly Output" to "Assembly With Source Code".
Compile the program and use any third-party debugger. You can use OllyDbg or WinDbg for this. Also you can use IDA (interactive disassembler). But this is hardcore way ...
How to read from a file or STDIN in Bash?
...ter to add -r to your read command, so that it doesn't accidentally eat \ chars; use while IFS= read -r line to preserve leading and trailing whitespace.
– mklement0
Feb 28 '15 at 23:34
...
What is the curiously recurring template pattern (CRTP)?
...ter
{
public:
Writer() { }
~Writer() { }
void write(const char* str) const
{
static_cast<const T*>(this)->writeImpl(str); //here the magic is!!!
}
};
class FileWriter : public Writer<FileWriter>
{
public:
FileWriter(FILE* aFile) { mFile = aFile; ...
Extract digits from a string in Java
...t probably faster:
public static String stripNonDigits(
final CharSequence input /* inspired by seh's comment */){
final StringBuilder sb = new StringBuilder(
input.length() /* also inspired by seh's comment */);
for(int i = 0; i < input.length(); i++){
fi...