gcc error suggest parentheses around assignment used as truth value Vevay Indiana

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gcc error suggest parentheses around assignment used as truth value Vevay, Indiana

How to draw a path with coordinates defined by f(x) When casting a cube spell on a hex grid do you pick a honeycomb for origin or an intersection for origin? struct PIDList* getRecordForPID(struct PIDList* list, pid_t pid) { while(list = list->next) if (list->pid == pid) return list; return NULL; } Thanks EDIT: Thanks for your answers. Using extra parentheses is a very logical way to make the code more clear in what you mean. So running this code should not print the "equals" message, as indeed it does for me.

Generate a 6 character string from a 15 character alphabet more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact Complete dsPIC33F Family Reference Manual Problem with push button and PORTB Better chip possible ? Confused using GDI+ Graphics object and getting confused, help! In Harry Potter book 7, why didn't the Order flee Britain after Harry turned seventeen?

Why microcontroller takes many clock cycles to start up with PLL clock source? Even if | you feel that code like this is obscure, the recommended | | if ((x = p())) {...} | | is just bizarre. | | --- | Marc It Browse other questions tagged c gcc mingw parentheses or ask your own question. My personal opinion is that this warning is so useful that I'd even object to move it to -pedantic warnings. -- Carlo Wood Follow-Ups: Re: suggest parentheses around assignment used

It doesn't, so your first test is true. TIA Nat I'd suggest checking a) That you really do have "if (loc == 'u')" and absolutely definitely do not have "if (loc = 'u')"; b) That "loc" is not a Garcia" Date: Wed, 1 Jul 1998 07:02:11 -0400 (EDT) cc: egcs at cygnus dot com > I'd just like to register my opiniont that code like Apr 22 '07 #7 This discussion thread is closed Start new discussion Replies have been disabled for this discussion.

asked 3 years ago viewed 8749 times active 3 years ago Visit Chat Related 1c++: truth assignment warning with arguments?23Compiler warning - suggest parentheses around assignment used as truth value7How to Index Nav: [DateIndex] [SubjectIndex] [AuthorIndex] [ThreadIndex] Message Nav: [DatePrev][DateNext] [ThreadPrev][ThreadNext] Re: suggest parentheses around assignment used as truth value To: bgarcia at fore dot com (Brad M. gcc -Wall was stating that my comparsion was somehow wrong so my focus was on the if (loc == 'u') problem, as it corresponded to the line number that gcc gave. Here's one clue: for (i=0, i<=max; i++) -- Eric Sosman es*****@acm-dot-org.invalid Apr 17 '07 #3 P: n/a gw7rib On 17 Apr, 13:06, [email protected] wrote: Hi all, I'm new to C and

Join them; it only takes a minute: Sign up warning: suggest parentheses around assignment used as truth value [closed] up vote -5 down vote favorite I have this code and there that chart has != above & , unless you're suggesting the chart is in low-to-high order, which it isn't. –WhozCraig Feb 20 '14 at 21:36 @haccks C operators in In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms I use assignments as truth values extremely frequently, and I don't need the compiler to patronize me!

Send us an email b. So the warning is helpful. Browse other questions tagged c compiler-construction compiler-warnings or ask your own question. Linked 28 Operator precedence (bitwise '&' lower than '==') Related 6C++ warning: suggest parentheses around arithmetic in operand of |1Writing a GCC-compatible wrapper around a .lib file197What do the parentheses around

How to deal with sewage on a map with no water anywhere Physically locating the server How do I say "best practice" in Esperanto? How should I deal with a difficult group and a DM that doesn't help? Even if > you feel that code like this is obscure, the recommended > > if ((x = p())) {...} > > is just bizarre. Are you sure you don't have if(loc = 'u') ? -- Richard -- "Consideration shall be given to the need for as many as 32 characters in some alphabets" - X3.4,

Let us know a. Confused - suggest parentheses around assignment used as truth value P: n/a natkw1 Hi all, I'm new to C and kind of confused on this. Not the answer you're looking for? more hot questions question feed lang-c about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation

When I run I only get x!=y as expected as per my explanation. Just to be sure it's intentional, it asks you to add brackets around: if ((x=y)). Cheers Nat Apr 18 '07 #5 P: n/a Francine.Neary On Apr 18, 11:45 am, [email protected] wrote: It was the last comment that helped me out the most. Appease Your Google Overlords: Draw the "G" Logo permissions on /etc/shadow With modern technology, is it possible to permanently stay in sunlight, without going into space?

Browse other questions tagged for-loop warnings parentheses or ask your own question. if ( ( (long)Address & (~(sizeof(long)-1)) ) != 0 ){ share|improve this answer answered Feb 20 '14 at 21:26 haccks 68k1788162 Then it is always untrue/Invalid –Vineet1982 Feb 20 Linked 29 What does if((x=0)) mean in C? 0 Has Eclipse's 'Suggested parenthesis around expression' solid grounds? 0 Why this loop stops? That can only happen with a totally borked compiler, since y is 0.

This won't cause any difference code wise, but it shows that the return value is used on its own and the assignment is just part of it (hard to describe). share|improve this answer edited Oct 31 '12 at 14:44 answered Oct 31 '12 at 14:37 Mike 22.2k1262126 add a comment| up vote 1 down vote You're using the wrong operator: = c) That the line you are carefully examining is indeed the same line that the compiler is complaining about - sometimes line numbering goes a bit odd. How?

void foo(char loc) { ... Index Nav: [DateIndex] [SubjectIndex] [AuthorIndex] [ThreadIndex] Message Nav: [DatePrev][DateNext] [ThreadPrev][ThreadNext] Re: suggest parentheses around assignment used as truth value To: rouaix at my-dejanews dot com (Marc Rouaix) Subject: Re: suggest parentheses Can Communism become a stable economic strategy? consecutive cases with no intervening statements should not generate the warning.

c if-statement compiler-warnings share|improve this question edited Oct 31 '12 at 14:43 Nicoretti 299139 asked Oct 31 '12 at 14:33 wantToLearn 203413 closed as not a real question by interjay, Mike, share|improve this answer answered Oct 31 '12 at 14:37 Alok Save 141k24271420 It always evaluates to true? I had double checked that I used == and not = when in fact it was my for loop that was giving me problems. How to use the binomial theorem to calculate binomials with a negative exponent Relation between representations of p-adic groups and affine Hecke algebras In a long sum, how can we find

share Share on Twitter Share on Facebook Email Link Like + Quote Reply kpua, Jan 8, 2009 kpua macrumors 6502 Joined: Jul 25, 2006 #2 First off, it's generally bad form MacRumors attracts a broad audience of both consumers and professionals interested in the latest technologies and products.