--- Michael Schwendt <mschwendt.tmp0701.nospam@xxxxxxxx> wrote: > On Tue, 22 Apr 2008 05:00:20 -0700 (PDT), Antonio > Olivares wrote: > > > Dear all, > > > > I wrote a small program prog1.cpp that cranks out > the numbers in the sequence A016278 in OEIS > > > > > http://www.research.att.com/~njas/sequences/A016278 > > > > The program runs on slax, but fails to do so on > rawhide. > > > > [olivares@localhost Documents]$ cat prog1.cpp > > #include <iostream.h> > > #include <stdlib.h> > > #include <math.h> > > > > int main(int argc, char *argv[]) > > { > > int i; > > double j; > > for (i=1; i < 16; i++) > > { > > j = > > > (4.0/7.0)*pow(2.0,i-1)+(-3.0/2.0)*pow(3.0,i-1)+(27.0/14.0)*pow(9.0,i-1); > > cout << i << ' ' << j << "\n"; > > } > > return EXIT_SUCCESS; > > } > > > > [olivares@localhost Documents]$ cat > /etc/fedora-release > > Fedora release 8.93 (Rawhide) > > [olivares@localhost Documents]$ c++ -o prog1 > prog1.cpp > > prog1.cpp:1:22: error: iostream.h: No such file or > directory > > prog1.cpp: In function â??int main(int, > char**)â??: > > prog1.cpp:13: error: â??coutâ?? was not declared > in this scope > > [olivares@localhost Documents]$ > > > Is there something that needs to be done so that > the program can compile fine in rawhide? > > > > Make it C++. Include <iostream>, <cstdlib>, <cmath>. > Consider the > namespaces, e.g. cout is std::cout in global scope. > Use ios::endl not > '\n'. Declare i inside the for-statement. Declare j > inside the for-loop > body. Then it comes closer to C++. > > -- > fedora-test-list mailing list > fedora-test-list@xxxxxxxxxx > To unsubscribe: > https://www.redhat.com/mailman/listinfo/fedora-test-list > If I use ios::endl, the program fails, [rio@localhost Documents]$ cat prog2.cpp #include <iostream> #include <cstdlib> #include <cmath> using namespace std; int main(int argc, char *argv[]) { for (int i=1; i < 7; i++) { double j; j = (4.0/7.0)*pow(2.0,i-1)+(-3.0/2.0)*pow(3.0,i-1)+(27.0/14.0)*pow(9.0,i-1); std::cout << i << ' ' << j << ios::endl; } return EXIT_SUCCESS; } [rio@localhost Documents]$ c++ -o prog2 prog2.cpp prog2.cpp: In function ‘int main(int, char**)’: prog2.cpp:12: error: ‘endl’ is not a member of ‘std::ios’ but if I remove the ios:: part and leave endl; it works :) [rio@localhost Documents]$ c++ -o prog2 prog2.cpp [rio@localhost Documents]$ ./prog2 1 1 2 14 3 145 4 1370 5 12541 6 113534 [rio@localhost Documents]$ Thank you very much Michael, that was what was needed. I appreciate yours and Jason's help. Now the program compiles on Fedora as well. Regards, Antonio ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ -- fedora-test-list mailing list fedora-test-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-test-list
