I know but this is from a book. BTW, thank you. On Sun, Feb 5, 2012 at 11:57 AM, Kai Ruottu <kai.ruottu@xxxxxxxxxxx> wrote: > 3.2.2012 22:56, esmaeil mirzaee kirjoitti: > >> thanks for your reply. >> I read your document but unfortunately It doesn't help more. >> >> When I compile DieWithError.c I've got below error: >> >> $ gcc -o DieWithError DieWithError.c >> /usr/lib/gcc/i686-linux-gnu/4.4.5/../../../../lib/crt1.o: In function >> `_start': >> (.text+0x18): undefined reference to `main' >> collect2: ld returned 1 exit status > > > Yes, every executable made in C and C++ needs the 'main()' function > in Unix/console-apps, in Win32 GUI apps that would be 'WinMain()'... > So you must provide this. The functions in your 'DieWithError.c' seem > to be only subfunctions, expected to be called from some main program. > > The chapter 3 "The form of a C program" in the tutor book should tell > this thing. -- Best Esmaeil https://sites.google.com/site/esmaeilmirzaee
