I'm not making that assumption. /Asking/ (sensible) questions about the FAQ entries is fine. Increment value in α. 3. asked 4 years ago viewed 13153 times active 4 years ago Linked 737 Undefined behavior and sequence points 0 operation on 'i' may be undefined Related 531Why are these constructs (using The C language does not know or care, and anything the program does is just as right or just as wrong as anything else. -- Jack Klein Home: http://JK-Technology.Com FAQs for More about the author
Technology is 'stuff that doesn't work yet.' -- Bran Ferren Reply With Quote 10-Mar-2010,05:42 #10 martin_helm View Profile View Forum Posts View Blog Entries View Articles Flux Capacitor Penguin Join Date The first statement is evaluated and then, in the second statement the pointer is increased. i getting operation not supported error sahil1 Linux - Hardware 0 03-14-2004 02:17 PM All times are GMT -5. I'll accept his answer again because it surely avoids warnings anyhow.:) If I decided to ask a new question, I'll update this question to add a link. get redirected here
Everyone here is quick to post that the code invokes undefined behavior, but doesn't the following excerpt from the standard explicitly allow it? 7.19.6 Formatted input/output functions 1) The formatted input/output The code is broken because it does something that the C standard says it undefined behavior, a very specific term. Why would a password requirement prohibit a number in the last character?
Is there a role with more responsibility? I thought the right-of-equal equation is always evaluated first, then assigned to the left-of-equals. –Luv2code Oct 23 '15 at 20:24 add a comment| Your Answer draft saved draft discarded Sign maybe you compiler set a prefix "_cdecl" for every standard function. (you could find that by opening a header file). Why when run the output is: "3 2 1"?
Edited the answer. –user529758 May 16 '12 at 17:03 Thank you so much. –gbhall May 16 '12 at 17:07 add a comment| up vote 4 down vote trackTail[nodeNumber-1] = Werror=sequence-point Because then the issue could be solved upstream by the author and is available to everyone using it. Hello, #include
True or False? Is the NHS wrong about passwords? If an object is to be modified between two sequence points, then it can only be written once, and read accesses must be done in order to compute the new value, Then you assign the result of the second expression to the first.
Why when run the output is: "3 2 1"? Last edited by dbrazeau; 11-07-2013 at 06:14 PM. Wsequence-point Gcc For the purpose of writing new code, all you really need to know is that undefined behavior is to be avoided. C Sequence Point If so can anyone explain why this is useful?
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. Henk van Velden Reply With Quote 10-Mar-2010,05:24 #8 vodoo View Profile View Forum Posts View Blog Entries View Articles Wise Penguin Join Date Jan 2009 Location Switzerland Posts 1,549 Re: Operation kbp View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by kbp 11-07-2013, 04:58 PM #3 dbrazeau Member Registered: Aug 2009 Distribution: Fedora, Code: i = (i + 1) % 10; should work.
The incremented value (modulo 10) is assigned to trackTail[nodeNumer-1] because there's an assignment operator there whose right operand is the incremented value. Examples of how this could happen are probably quite contrived but that is the purpose behind the clause. Everyone here is quick to post that the code invokes undefined behavior, but doesn't the following excerpt from the standard explicitly allow it? 7.19.6 Formatted input/output functions 1) The formatted input/output Related 89Disable all gcc warnings549PHP: “Notice: Undefined variable” and “Notice: Undefined index”6“Uninitialized use” warning in the g++ compiler66Flags to enable thorough and verbose g++ warnings4g++ strange warning4How to disable all warnings
The compiler might also swap 4th and 5th operation and the same end result would be produced. Save β to j. 5. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed
Compiler might translate it to: Code: 1. How should I calculate the determinant? Otherwise not. Not the answer you're looking for?
With modern technology, is it possible to permanently stay in sunlight, without going into space? Quote: Originally Posted by ntubski This is C FAQ 3.3, 3.8 for more detail. My code is a little more complicated than that. Find More Posts by mina86 11-08-2013, 11:40 AM #9 dbrazeau Member Registered: Aug 2009 Distribution: Fedora, OpenSuse, DENX Embedded Linux Posts: 176 Original Poster Rep: Thanks for the great
Why does this execution plan have Compute Scalars? operation on `x' may be undefined? Order of evaluation -- AFAIK, there's no requirement thatexpressions in a function parameter list be evaluated in any particularorder. I have to patch it.
Not the answer you're looking for? Nov 15 '05 #19 P: n/a jimjim Moreover, http://www.eskimo.com/~scs/C-faq/q11.33.html refers to implementation-defined. 1. Password Programming This forum is for all programming questions. It all comes down to the concept of *sequence points*.
TIA You're running into two issues: 1. I don't know what other compilers would do. Hello, #include
The time now is 19:06. © 2015 SUSE, All Rights Reserved. Henk van Velden Reply With Quote 10-Mar-2010,04:39 #3 vodoo View Profile View Forum Posts View Blog Entries View Articles Wise Penguin Join Date Jan 2009 Location Switzerland Posts 1,549 re: gcc: