1 /* $OpenBSD: rint.c,v 1.7 2008/12/09 20:35:13 martynas Exp $ */ 2 3 /* Written by Michael Shalayeff, 2003, Public domain. */ 4 5 #include <err.h> 6 #include <stdio.h> 7 #include <stdlib.h> 8 #include <string.h> 9 #include <signal.h> 10 #include <unistd.h> 11 #include <math.h> 12 13 static void 14 sigfpe(int sig, siginfo_t *si, void *v) 15 { 16 char buf[132]; 17 18 if (si) { 19 snprintf(buf, sizeof(buf), "sigfpe: addr=%p, code=%d\n", 20 si->si_addr, si->si_code); 21 write(1, buf, strlen(buf)); 22 } 23 _exit(1); 24 } 25 26 int 27 main(int argc, char *argv[]) 28 { 29 struct sigaction sa; 30 31 memset(&sa, 0, sizeof(sa)); 32 sa.sa_sigaction = sigfpe; 33 sa.sa_flags = SA_SIGINFO; 34 sigaction(SIGFPE, &sa, NULL); 35 36 if (rint(8.6) != 9.) 37 errx(1, "rint"); 38 if (rintf(8.6F) != 9) 39 errx(1, "rintf"); 40 if (rintl(8.6L) != 9) 41 errx(1, "rintl"); 42 if (lrint(8.6) != 9L) 43 errx(1, "lrint"); 44 if (lrintf(8.6F) != 9L) 45 errx(1, "lrintf"); 46 if (llrint(8.6) != 9LL) 47 errx(1, "llrint"); 48 if (llrintf(8.6F) != 9LL) 49 errx(1, "llrintf"); 50 51 exit(0); 52 } 53