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gcc error invalid lvalue in assignment Vossburg, Mississippi

Does anybody please have a hint or solution for this probably frequent problem: How to advance a void-pointer by few bytes? m->next : mod_msgs = newmsg; as this: if (m) { m->next = newmsg; } else { mod_msgs = newmsg; } which should be equivalent. "invalid lvalue" means the left-hand-side of an In Harry Potter book 7, why didn't the Order flee Britain after Harry turned seventeen? Code: #include #include #include #define MAX 30 int main() { int customerCount=0; char input[32]; char drinks[MAX][10]; char smallLarge[MAX][6]; char hotCold[MAX][5]; int i=0; printf("How many people are at your

Already a member? How does NumPy solve least squares for underdetermined systems? Art and Comics Blog Critical Mass Emacs Free Stuff Games Gnu/Linux Home Learn Japanese Links Montreal Music News Some Essays Statistics Node:The assignment operator, Next:Expressions and values, Previous:Expressions and operators, Up:Expressions Look up a C++ Reference and learn How To Ask Questions The Smart Way 08-07-2009 #3 Elysia View Profile View Forum Posts C++まいる!Cをこわせ! Join Date Oct 2007 Posts 24,478 Just a

current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. Thank you Alex PS: and here is my wraper function for readv/writev(): /* The fp is either readv or writev; the iov array is not const */ int transmit_iov(ssize_t (*fp)(int, const Since it always the same way (check the return value; then check errno and retry if EAGAIN/EINTR), I've written a wrapper function (full source code on the bottom) to call those

Here's Why Members Love Tek-Tips Forums: Talk To Other Members Notification Of Responses To Questions Favorite Forums One Click Access Keyword Search Of All Posts, And More... Join UsClose This is the mail archive of the [email protected] mailing list for the GCC project. Originally Posted by Adak io.h certainly IS included in some modern compilers. Oct 6 '06 #4 P: n/a Harald van Dijk Martin Golding wrote: On Fri, 06 Oct 2006 07:29:02 -0700, A.

Join them; it only takes a minute: Sign up Error: invalid lvalue in assignment [in c] up vote 0 down vote favorite 1 CAN'T FIND WHAT'S WRONG... The time now is 03:16 AM. You show both... –sarnold Feb 27 '11 at 10:03 add a comment| 2 Answers 2 active oldest votes up vote 2 down vote accepted There are a couple of errors in Ugly option (though casting the address of a variable to a pointer of a different type is, WHEN CLEARLY UNDERSTOOD, a useful idiom): *(char **)&(iov[i].iov_base) += n; Not so ugly option,

Outside of your DOS world, your header file is meaningless. Having a problem logging in? How can I make LaTeX break the word at the end of line more beautiful? If you need to reset your password, click here.

On the other side an rvalue is a temporary value that does not persist beyond the expression that uses it. When to use "bon appetit"? If you can provide a small > compilable example of the problem you are facing, I can give you better > advice. > > HTH, > --Eljay Follow-Ups: RE: invalid lvalue Most have more sense than to send me hundreds of lines of code.

Creating a game, from start to finish Recent additions How to create a shared library on Linux with GCC - December 30, 2011 Enum classes and nullptr in C++11 - static zval* php_runkit_sandbox_parent_access_getter(php_runkit_sandbox_object *objval , void ***tsrm_ls) { zval *retval; (retval) = (zval *) _emalloc((sizeof(zval)) , "/usr/local/src/runkit-0.9/runkit_sandbox.c", 1558 , ((void *)0), 0) ; (*retval).type = 3; ((zend_bool)(*retval).value.lval) = objval->parent_access; retval->refcount = Ubuntu Logo, Ubuntu and Canonical Canonical Ltd. Ugly option (though casting the address of a variable to a pointer of a different type is, WHEN CLEARLY UNDERSTOOD, a useful idiom): *(char **)&(iov[i].iov_base) += n; This isn't allowed in

Quick Navigation C Programming Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums General Programming Boards C++ Programming C Programming C# Programming Game Programming Networking/Device Communication Guess I'll have to work on my C grammer some more. By using the cast you calculate a new value. For details and our forum data attribution, retention and privacy policy, see here Login with LinkedIN Or Log In Locally Email or Username Password Remember Me Forgot Password?Register ENGINEERING.com Eng-Tips

Something that can be assigned to is called an lvalue, ("l" for "left", because it can appear on the left side of an assignment). How should I calculate the determinant? Thanks for your help :) c compiler-errors share|improve this question asked Sep 14 '14 at 11:33 iFluke 2017 add a comment| 2 Answers 2 active oldest votes up vote 3 down share|improve this answer answered Feb 27 '11 at 10:06 Serkan 35317 add a comment| up vote 0 down vote *(list + index) returns an int.

I've always found the C conditional expression a bit odd. What is lvalue? Does anybody please have a hint or solution for this probably frequent problem: How to advance a void-pointer by few bytes? Are there any rules or guidelines about designing a flag?

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. string literal is an lvalue; other literals are rvalues. share|improve this answer answered Sep 14 '14 at 12:01 Hemant Gangwar 1,244518 Thanks man! :) :) –iFluke Sep 25 '14 at 3:20 add a comment| up vote 5 down Export The $PATH Variable, Line-By-Line Can a GM prohibit a player from referencing spells in the handbook during combat?

Why it is not an lvalue ? Adv Reply Quick Navigation Programming Talk Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums The Ubuntu Forum Community Ubuntu Official Flavours Support New to contact us Good luck, Jeff helmut_hed View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by helmut_hed Thread Tools Show Printable Version Email this Page

They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Adv Reply May 1st, 2006 #2 supirman View Profile View Forum Posts Private Message Frothy Coffee! Visit the following links: Site Howto | Site FAQ | Sitemap | Register Now If you have any problems with the registration process or your account login, please contact us. What kind of distribution is this?

Invalid lvalue in assignment when trying to advance a void-pointer (struct iovec) P: n/a A. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions. Please visit this page to clear all LQ-related cookies. NumArray[++Count] = Input : Unique = 1); GCC says "error: invalid lvalue in assignment".

Is f() lvalue? Since it always the same way (check the return value; then check errno and retry if EAGAIN/EINTR), I've written a wrapper function (full source code on the bottom) to call those Contact Us - Advertising Info - Rules - LQ Merchandise - Donations - Contributing Member - LQ Sitemap - Main Menu Linux Forum Android Forum Chrome OS Forum Search LQ LinuxQuestions.org > Forums > Linux Forums > Linux - Software Error: invalid lvalue in assignment User Name Remember Me?

Search Engine Optimisation provided by DragonByte SEO v2.0.32 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd. Target: i386-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-libgcj-multifile --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --with-cpu=generic --host=i386-redhat-linux Thread model: posix gcc version 4.1.1 20060525 (Red Hat 4.1.1-1) 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 RE: error: invalid lvalue in assignment Hemo (Programmer) (OP) 5 Apr 07 23:45 well, it's not a warning, it is an error.I have found referrences where the developers of gcc dropped