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/* Example of a bad call within a signal handler with replacement
alternative. 'handler' calls 'exit', and 'exit' is not allowed
from a signal handler. But '_exit' is allowed. */
/* { dg-require-effective-target signal } */
#include <signal.h>
#include <stdlib.h>
extern void body_of_program(void);
static void handler(int signum)
{
exit(1); /* { dg-warning "call to 'exit' from within signal handler" "warning" } */
/* { dg-message "note: '_exit' is a possible signal-safe alternative for 'exit'" "replacement note" { target *-*-* } .-1 } */
}
int main(int argc, const char *argv)
{
signal(SIGINT, handler); /* { dg-message "registering 'handler' as signal handler" } */
body_of_program();
return 0;
}
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