Unexpected Behavior of C Integer Verification

This is what I wrote to check if input is a positive integer #include <stdio.h> #include <string.h> #include <ctype.h> int isInt(char num[3]) { int l = strlen(num); int x; for ( x = 0; x < l; x++) { if ( ! isdigit(num[x]) ) return 0;

Lua 5.3 - Integers - type () - lua_type ()

Since Lua 5.3, inegers are supported. But how can I do : if type( 123 ) == "integer" then end Or switch( lua_type( L, -1 ) ) { case LUA_TINTEGER: break; } Since type() is still going to return "number" for both integer and reals, and L

Get a weird result when adding table of numbers in javascript

Following is my code in which is working fine for smaller array number, but if I am using large size number of array in the method it is giving weird answers - Code - function upArray(arr){ var fail = false, count = ''; arr.map(function(x){ if(x>10 |

Why does not my code take input from the command line?

The point of this program is to take a three digit number from the command line and then reversing it. After that it is supposed to subtract the reverse from the original number and add the original to the reversed. This is supposed to only take numb

A: How to convert factors into digital for a DATA FRAME?

I want to convert factors into numeric. I know this a FAQ, I tried already as.numeric(levels(f))[f] and as.numeric(as.character(f)). But this doesn't help as I want to convert all columns (more than 1000 and all of type factor) of the df into numeric

Truncate an integer using string manipulation?

I have a class with a data member that needs to be rounded up to a 2 digit integer, irrespective of the number of the input digits. For example: roundUpto2digit(12356463) == 12 roundUpto2digit(12547984) == 13 // The 5 rounds the 12 up to 13. Currentl

How to filter floats with integers [logic]

I have an array of floats. Some of these floats are VERY close to integers, but they're still floats. I need to filter these values. For example: array_n = [n]; //an array of floats k = 160. In the if loop, n is an element in array_n. I need to pick

Checking int in an int array

I'm trying to find an integer inside of an int[] array and return true or false depending on whether or not it's present anywhere, however my code, which I've taken from numerous websites. My array is as follows: private static final int[] thirtyOneD

How to work only on ints in Python?

I have problem with my code. The task was to search for 3 integers that solves this equation 6*a+9*b+20*c = x, where x is an input. The problem is that my code only works for floats, and I unable to force it to give me an anwser only while a,b,c are

Comparing integer values ​​with a null value

Hi I had a question related to Integer comparison. say I have two Integer count1 and count2, I want to implement the following action: if (count1 bigger than count2) do something; else do something else; I know I can use count1.compareTo(count2) > 0.

Is a given string convertible to a whole number

This question already has an answer here: How do I tell if the c function atoi failed or if it was a string of zeros? 6 answers Is there an effective way in C to check if a given string is convertable to an integer? An output error should indicate if

Converting Input Digital Channels to C Integers

I am trying to convert numerical strings inputs to integer. When I type 2 my output is 0 scanf( "%d", betNumber ); printf("What number do you want to bet? \n"); printf("Here is your number: %d\n" ,atoi(betNumber)); User input

Convert Boolean to integer value php

Is there any builtin function for PHP that will take a boolean value and return its integer equivalent? 0 for FALSE, 1 for TRUE? Of course you can easily create a function to do so, I'm just asking if there is a builtin function inside of PHP. I alre

Javascript Logical Operators

I am trying to write a lottery game where the numbers 3, 5, 8 entered into the 3 separate text boxes will yield a success alert box, and otherwise a fail alert box which also shows the wrong numbers entered. I've put the code here but I'm lost as to

& ldquo; 'int' object is not iterable & rdquo; all in

def rect_extend(x): m, n = 1 while 1 < x: m = m + 1 n = n + 1 return m, n This simple function returns: 'int' object is not iterable error in iPython. I don't know why it does this, while function doesn't work - condition seems to be true. (while's c

Delete integer and only display the decimal point in Python?

I am trying to calculate the square root of a number to where it looks like this: Enter number for square root: 2 --------------------------------- .41 However, with the current code I have: def calc(self, event=None): try: self.result_var.set("The s

Java ArrayList String Separation

Here is my code: import java.util.ArrayList; public class SplitString { public static void main(String[] args) { String s = "80+5+3*(11%(3*2)-(5+1)+6)-(10+10)+(2*2)*5"; ArrayList<String> equation = new ArrayList<>(); String ns = &quo

Integer and String Conflicts

Currently I'm working on an assignment that requires that I create a program in which the user enters a number between 0-4. The program then checks which number the user inputs and outputs a specific string. For example if the user enters 4, the prog

How can I solve these problems with numbers?

I still have troubles with numbers in Vim: p.e. let a = 1.02 | let b = '10000000' | let total = a*b | echo total --> 1.02e7 I would like to avoid Exponentials. How can I have the output 10200000 ? let a = 4000000000 | let b = '1' | let total = a+b |

Make a string with a string and an integer in Python

I get this error when trying to take an integer and prepend "b" to it, converting it into a string: File "program.py", line 19, in getname name = "b" + num TypeError: Can't convert 'int' object to str implicitly That's relate

PHP Convert Int

Im not sure what this type of number is '1.3122278540256E+18' but how can i expand it into an integer? Thanks!!That's a floating-point number expressed in scientific notation (the "E+18" means "times 10 to the 18th power"). Chances are

Pseudorandom Sequence Generator is not just a number generator

I need an algorithm that pretty much will turn a unix timestamp into a suitably random number, so that if I "play back" the timestamps I get the same random numbers. And here's what I mean by suitably: Most humans will not detect a loop or patte

How do I know if an integer C variable is signed?

As an exercise, I'd like to write a macro which tells me if an integer variable is signed. This is what I have so far and I get the results I expect if I try this on a char variable with gcc -fsigned-char or -funsigned-char. #define ISVARSIGNED(V) (V