PLATFORM
PC i386 + GNU/Linux Ubuntu Hardy 8.04 + GCC 4.2.3
Compiling and Linking options: none.
Excuse my poor English. (By the way, what is "Host triplet", "Target triplet",
"Build triplet"?)
BUG:
"printf" really prints at terminal when finds '\n' character. So if I have a
simple "printf" iteration without '\n' like this ...
int n;
for (n=10; n>=0; n--) {
printf("%d ", n);
sleep(1);
};
... it doesn't works like expected. It just waits 10 seconds without printing
anything. After that prints whole line.
Another related problem with printf without '\n' and printf buffer using fork,
but I don't know if it is problem with printf or fork:
int n, pid;
for (n=10; n>=0; n--) {
printf("%d ", n);
sleep(1);
};
pid = fork();
if (pid == -1)
printf("Error\n");
else
if (pid == 0)
printf("I'm the child\n");
else
printf("I'm the parent\n");
it prints TWO times 10 9 8 7 6 5 4 3 2 1 0
It is not that executes two times, but if the fork send again the buffer to the
screen.
--
Summary: printf + sleep = problems with output buffer
Product: gcc
Version: 4.2.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: alexcastan at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37785
