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Standard alternative to GCC's ##__VA_ARGS__ trick?
..., a8, a9, a10, ...) a10
int
main(int argc, char *argv[])
{
BAR("first test");
BAR("second test: %s", "a string");
return 0;
}
This same trick is used to:
count the number of arguments
expand differently depending on the number of arguments
append to __VA_ARGS__
Explanation
The st...
Input from the keyboard in command line application
...iOS project until or unless you add "command-line tool".
The best way for testing, you can do :
1. Create an macOS file
2. Use the readLine() func to scan optional String from console
import Foundation
print("Please enter some input\n")
if let response = readLine() {
print("output :"...
Javascript heredoc
...\s*([\s\S]*?)\s*\*\//m)[1];
};
Use:
var txt = heredoc(function () {/*
A test of horrible
Multi-line strings!
*/});
Returns:
"A test of horrible
Multi-line strings!"
Notes:
Text is trimmed on both ends, so any extra whitespace on either end is OK.
Edits:
2/2/2014 - changed to not mess wi...
What is the JavaScript equivalent of var_dump or print_r in PHP? [duplicate]
... /^[0-9]+$/;
if (!isNaN(v) && v % 1 === 0 && er.test(3.0)) {
out = 'int';
}
*/
break;
case "boolean":
out += ": " + v;
break;
case "string":
out += "(" + v.length + '): "' + v + '"';
break;
...
How to go about formatting 1200 to 1.2k in java
...n hasDecimal ? (truncated / 10d) + suffix : (truncated / 10) + suffix;
}
Test code
public static void main(String args[]) {
long[] numbers = {0, 5, 999, 1_000, -5_821, 10_500, -101_800, 2_000_000, -7_800_000, 92_150_000, 123_200_000, 9_999_999, 999_999_999_999_999_999L, 1_230_000_000_000_000L, L...
jsoncpp 不能处理__int64(long long)类型数据 - C/C++ - 清泛网 - 专注C/C++及内核技术
...成json的时候报了错误，很显然这不是我程序的问题。
Test.cpp: In function ‘std::string createJsonData()’:
Test.cpp:41: error: conversion from ‘long long int’ to ‘const Json::Value’ is ambiguous
include/json/value.h:205: note: candidates are...
How to return a string value from a Bash function
...n_a_string_message+=$(date)
ret=$MYLIB_return_a_string_message
}
and testing this example:
$ return_a_string result; echo $result
The date is 20160817
Note that the bash "declare" builtin, when used in a function, makes the declared variable "local" by default, and "-n" can also be used wit...
Capturing Groups From a Grep RegEx
...
it worked for some simple test cases... \2 gets the inner group
– cobbal
Dec 12 '09 at 6:01
|
...
How to shuffle a std::vector?
...t;> (floor,ceil);
return (rand_(rng_));
}
};
Than you can test it with this code:
#include "Randomizer.h"
#include <iostream>
using namespace std;
int main (int argc, char* argv[]) {
vector<int> v;
v.push_back(1);v.push_back(2);v.push_back(3);v.push_back(4);v.p...
Difference between Node object and Element object?
...where the nodeType property has a value of 1.
So document.getElementById("test") can only return one node and it's guaranteed to be an element (a specific type of node). Because of that it just returns the element rather than a list.
Since document.getElementsByClassName("para") can return more t...