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gcc error undefined reference main Wagram, North Carolina

your editor might have a different cwd than you had in mind. You're missing some very basic concepts. –Jim Buck Aug 6 '13 at 22:30 | show 4 more comments 4 Answers 4 active oldest votes up vote 3 down vote Exactly how Usual Causes The cause is self-explanatory. You'll need to look up how your specific simulator works. '-sv_lib' and '-sv_root' seem to be common simulator options to include DPI libraries between simulators. (doulos.com/knowhow/sysverilog/tutorial/dpi) –Greg Aug 7 '13 at

share|improve this answer answered Apr 9 '13 at 14:57 Bechir 665413 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign Export The $PATH Variable, Line-By-Line Why must the speed of light be the universal speed limit for all the fundamental forces of nature? When I simply try to compile C using gcc with below command: gcc -g -Wall -Werror -I/home/fftw/local/include -L/home/ss69/fftw/local/lib \ fftw_test_DPI.c -lfftw3 -lm -o fftw_test_DPI I get this error: /usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib64/crt1.o: In function What (combination of) licenses is popular for public/shared proprietary software (“Feel free to contribute, but only we can make commercial use”)?

discards qualifier Example myfile.cpp: In function `int main()': myfile.cpp:20: passing `const DayOfYear' as `this' argument of `void DayOfYear::Set(int, int)' discards qualifiers Meaning You have an inconsistency with the use of "const" asked 3 years ago viewed 15480 times active 3 years ago Get the weekly newsletter! Try to indent your file, it will be more readable to you... –Basile Starynkevitch Dec 2 '11 at 6:40 @Basile Starynkevitch: I have a main. Of course, I'm assuming you use a GNU/Linux system (and I invite you to use GNU/Linux if you don't use it already).

Please visit this page to clear all LQ-related cookies. Blogs Recent Entries Best Entries Best Blogs Blog List Search Blogs Home Forums HCL Reviews Tutorials Articles Register Search Search Forums Advanced Search Search Tags Search LQ Wiki Search Tutorials/Articles Search How much is "a ladleful"? Also, the tutorial has the following import statement: import "DPI" function void slave_write(input int address, input int data); This SystemVerilog statement obviously has input defs on the parameters, is this required?

Usual Causes In our projects, this warning usually arises in a for-loop which is looping through all elements of a vector. asked 4 years ago viewed 85200 times active 6 months ago Visit Chat Linked 2 undefined reference to 'main' when compiling -1 Linking errors (collect2: ld returned 1) Related 1Compile Attempt Join our community today! Linker errors occur when g++ tries to combine all of your .o files into an executable file.

If not, your problem is very strange. what is the version of gcc you have? Linux. 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.

Flow Chart with tikzpicture: particular tipes of arrows How should I calculate the determinant? How to draw a path with coordinates defined by f(x) How to handle a senior developer diva who seems unaware that his skills are obsolete? Go back to basics and read Section 1.1 of The C Programming Language by K&R. share|improve this answer edited Nov 1 '11 at 11:05 answered Nov 1 '11 at 10:59 Blagovest Buyukliev 30.7k864105 2 the problem is that I put the main function inside my

Why does argv include the program name? If you have suggestions for errors that should be included in this document or have questions or suggestions for improving the document please email Mr. At this stage, the simulator needs to know what binary to run with or require an intermediate linker stage. Registration is quick, simple and absolutely free.

But thanks anways. Having a problem logging in? Is it plausible for my creature to have similar IQ as humans? Browse other questions tagged c gcc reference or ask your own question.

non-aggregate type -- classes and structs are generically called "aggregate" types. asked 1 year ago viewed 434 times active 1 year ago Visit Chat Related 1644Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?-1How do I understand this compiler error: “multiple definition of …”23gcc What sense of "hack" is involved in "five hacks for using coffee filters"? This applies regardless to whatever sort of output is being produced, whether it be an executable file, an object file, an assembler file or preprocessed C code.

It means, gcc will put the output in the filename provided immediate next to -o switch. Please correct that. If Dumbledore is the most powerful wizard (allegedly), why would he work at a glorified boarding school? Browse other questions tagged c linker or ask your own question.

How should I interpret "English is poor" review when I used a language check service before submission? The last step is different between simulators. To fix this problem simply define 'i' as an unsigned int too, as in for( unsigned int i; i < grades.size( ); i++) suggest parentheses around assignment used as truth value Results 1 to 3 of 3 Thread: undefined reference to `main' -- but main is defined Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid

How to limit a xorg installation to a single video driver? Why (in universe) are blade runners called blade runners? When casting a cube spell on a hex grid do you pick a honeycomb for origin or an intersection for origin? cov(x,y)=0 but corr(x,y)=1 How much is "a ladleful"? 5008 out of the box How to use the binomial theorem to calculate binomials with a negative exponent Book of zen kōans Exploded

What sense of "hack" is involved in "five hacks for using coffee filters"? No reason for a forward declaration of main() just I get everything in place –Nikos KLon Jan 15 '15 at 12:12 What is -DCONTEST for, I don't see that In the latter case compile with -c: g++ somefile.cpp -o output.o -c Last edited by MadCow108; December 29th, 2010 at 11:20 PM. if you don't have this main function, ld will report "undefined reference to main' " check my result: $ cat es3.c #include int main(void) { printf("Hello world!\n"); return 0; }

Can I release a pattern without releasing the whole held expression? This error is fixed by enclosing your code for the case inside of braces. Compute the kangaroo sequence Make all the statements true reading through the definition of `\cfrac` in AMSMath Relation between representations of p-adic groups and affine Hecke algebras Putting pin(s) back into Relation between representations of p-adic groups and affine Hecke algebras Putting pin(s) back into chain How to use the binomial theorem to calculate binomials with a negative exponent Can I release

What kind of distribution is this?