473,387 Members | 1,597 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,387 software developers and data experts.

Expression

Hi all,

I have the following declaration and initialization:

int n = 8;
int z = 2.0;

I know it would be 8, but I am trying to find out if the expression of z=n would be still considered an int, float, double, our unsigned.
Nov 7 '07 #1
3 1218
RRick
463 Expert 256MB
z is what you define it to be, namely an int.

When you assign 2.0 to z, the 2.0 float value will be convert to an integer and the integer value will be assigned to z.

Any assignment between z and n will be as the types they are defined to be (and not the values you try to assign to them).
Nov 7 '07 #2
Thanks Rick, that's pretty much what I thought...it would stay an int. I guess the float just got me thinking.
Nov 8 '07 #3
weaknessforcats
9,208 Expert Mod 8TB
int z = 2.0;
will cause a compiler warning about truncation and possible loss of data. 2.0 is a double and z is an integer. Integers do not have decimal places plus the double can hold a value larger than the int can contain.

C and C++ have two data variable familes: integer and floating point.

Try to not mix these in your code.
Nov 8 '07 #4

Sign in to post your reply or Sign up for a free account.

Similar topics

23
by: Paul Rubin | last post by:
OK, I want to scan a file for lines matching a certain regexp. I'd like to use an assignment expression, like for line in file: if (g := re.match(pat, line)): croggle(g.group(1)) Since...
70
by: Roy Yao | last post by:
Does it mean "(sizeof(int))* (p)" or "sizeof( (int)(*p) )" ? According to my analysis, operator sizeof, (type) and * have the same precedence, and they combine from right to left. Then this...
22
by: Tony Johansson | last post by:
Hello Experts! I'm reading i a book about C++ and they mention infix with telling what it is. I hope you out there can do so. Many thanks! //Tony
2
by: Mike Turco | last post by:
I like using the expression builder for a lot of different things but it isn't always available when I want to use it, for example in the code window, or in all of the control properties. I am...
14
by: John Temples | last post by:
Given this code: extern volatile unsigned char v; int main(void) { v; return 0; }
15
by: Nerox | last post by:
Hi, If i write: #include <stdio.h> int foo(int); int main(void){ int a = 3; foo(a); }
7
by: Billa | last post by:
Hi, I am replaceing a big string using different regular expressions (see some example at the end of the message). The problem is whenever I apply a "replace" it makes a new copy of string and I...
1
by: lovecreatesbea... | last post by:
---quoting--- Annex C (informative) Sequence points 1 The following are the sequence points described in 5.1.2.3: - The end of a full expression: an initializer (6.7.8); the expression in an...
28
by: Marc Gravell | last post by:
In Linq, you can apparently get a meaningful body from and expression's .ToString(); random question - does anybody know if linq also includes a parser? It just seemed it might be a handy way to...
18
by: dspfun | last post by:
Hi! The words "expression" and "statement" are often used in C99 and C- textbooks, however, I am not sure of the clear defintion of these words with respect to C. Can somebody provide a sharp...
0
by: taylorcarr | last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
0
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
0
by: ryjfgjl | last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
0
BarryA
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.