| /* Test for X/Open format extensions, as found in the |
| Single Unix Specification and in Austin Group draft 7. |
| */ |
| /* Origin: Joseph Myers <jsm28@cam.ac.uk> */ |
| /* { dg-do compile } */ |
| /* { dg-options "-std=gnu99 -Wformat" } */ |
| |
| #include "format.h" |
| |
| void |
| foo (int i, unsigned int u, wint_t lc, wchar_t *ls, int *ip, double d, |
| char *s, void *p, int *n, long int l, int i2, float *fp, long int *lp, |
| va_list va) |
| { |
| /* The conversion specifiers C and S, for both printf and scanf, |
| are X/Open extensions. |
| */ |
| printf ("%C", lc); |
| printf ("%3C", lc); |
| printf ("%.3C", lc); /* { dg-warning "precision" "precision with %C" } */ |
| printf ("%hC", lc); /* { dg-warning "length" "bad %hC" } */ |
| printf ("%hhC", lc); /* { dg-warning "length" "bad %hhC" } */ |
| printf ("%lC", lc); /* { dg-warning "length" "bad %lC" } */ |
| printf ("%llC", lc); /* { dg-warning "length" "bad %llC" } */ |
| printf ("%jC", lc); /* { dg-warning "length" "bad %jC" } */ |
| printf ("%zC", lc); /* { dg-warning "length" "bad %zC" } */ |
| printf ("%tC", lc); /* { dg-warning "length" "bad %tC" } */ |
| printf ("%LC", lc); /* { dg-warning "length" "bad %LC" } */ |
| printf ("%-C", lc); |
| printf ("%+C", lc); /* { dg-warning "flag" "bad %+C" } */ |
| printf ("% C", lc); /* { dg-warning "flag" "bad % C" } */ |
| printf ("%#C", lc); /* { dg-warning "flag" "bad %#C" } */ |
| printf ("%0C", lc); /* { dg-warning "flag" "bad %0C" } */ |
| printf ("%'C", lc); /* { dg-warning "flag" "bad %'C" } */ |
| printf ("%S", ls); |
| printf ("%3S", ls); |
| printf ("%.3S", ls); |
| printf ("%hS", ls); /* { dg-warning "length" "bad %hS" } */ |
| printf ("%hhS", ls); /* { dg-warning "length" "bad %hhS" } */ |
| printf ("%lS", ls); /* { dg-warning "length" "bad %lS" } */ |
| printf ("%llS", ls); /* { dg-warning "length" "bad %llS" } */ |
| printf ("%jS", ls); /* { dg-warning "length" "bad %jS" } */ |
| printf ("%zS", ls); /* { dg-warning "length" "bad %zS" } */ |
| printf ("%tS", ls); /* { dg-warning "length" "bad %tS" } */ |
| printf ("%LS", ls); /* { dg-warning "length" "bad %LS" } */ |
| printf ("%-S", ls); |
| printf ("%+S", ls); /* { dg-warning "flag" "bad %+S" } */ |
| printf ("% S", ls); /* { dg-warning "flag" "bad % S" } */ |
| printf ("%#S", ls); /* { dg-warning "flag" "bad %#S" } */ |
| printf ("%0S", ls); /* { dg-warning "flag" "bad %0S" } */ |
| printf ("%'S", ls); /* { dg-warning "flag" "bad %'S" } */ |
| scanf ("%C", ls); |
| scanf ("%S", ls); |
| scanf ("%*C%*S"); |
| scanf ("%2C%3S", ls, ls); |
| scanf ("%hC", ls); /* { dg-warning "length" "bad %hC" } */ |
| scanf ("%hhC", ls); /* { dg-warning "length" "bad %hhC" } */ |
| scanf ("%lC", ls); /* { dg-warning "length" "bad %lC" } */ |
| scanf ("%llC", ls); /* { dg-warning "length" "bad %llC" } */ |
| scanf ("%jC", ls); /* { dg-warning "length" "bad %jC" } */ |
| scanf ("%zC", ls); /* { dg-warning "length" "bad %zC" } */ |
| scanf ("%tC", ls); /* { dg-warning "length" "bad %tC" } */ |
| scanf ("%LC", ls); /* { dg-warning "length" "bad %LC" } */ |
| scanf ("%hS", ls); /* { dg-warning "length" "bad %hS" } */ |
| scanf ("%hhS", ls); /* { dg-warning "length" "bad %hhS" } */ |
| scanf ("%lS", ls); /* { dg-warning "length" "bad %lS" } */ |
| scanf ("%llS", ls); /* { dg-warning "length" "bad %llS" } */ |
| scanf ("%jS", ls); /* { dg-warning "length" "bad %jS" } */ |
| scanf ("%zS", ls); /* { dg-warning "length" "bad %zS" } */ |
| scanf ("%tS", ls); /* { dg-warning "length" "bad %tS" } */ |
| scanf ("%LS", ls); /* { dg-warning "length" "bad %LS" } */ |
| /* In C99 mode (even with extensions), %aS is a floating point |
| format followed by an S. |
| */ |
| scanf ("%aS", fp); |
| /* The printf flag character ' is an X/Open extension. */ |
| printf ("%'d%'i%'u%'f%'F%'g%'G", i, i, u, d, d, d, d); |
| printf ("%'o", u); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'x", u); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'X", u); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'e", d); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'E", d); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'a", d); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'A", d); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'c", i); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'s", s); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'p", p); /* { dg-warning "flag" "bad use of ' flag" } */ |
| printf ("%'n", n); /* { dg-warning "flag" "bad use of ' flag" } */ |
| /* The use of operand number $ formats is an X/Open extension. */ |
| scanf ("%1$d", ip); |
| printf ("%1$d", i); |
| printf ("%1$d", l); /* { dg-warning "arg 2|argument 2" "mismatched args with $ format" } */ |
| printf ("%3$*2$.*1$ld", i2, i, l); |
| printf ("%4$ld%7$ld%5$d%6$d%3$d%1$d%2$d", i, i, i, l, i, i, l); |
| scanf ("%4$ld%7$ld%5$d%6$d%3$d%1$d%2$d", ip, ip, ip, lp, ip, ip, lp); |
| printf ("%1$d%d", i, i); /* { dg-warning "missing" "mixing $ and non-$ formats" } */ |
| printf ("%%%1$d%%%2$d", i, i); |
| printf ("%d%2$d", i); /* { dg-warning "used after format" "mixing $ and non-$ formats" } */ |
| printf ("%1$*d", i, i); /* { dg-warning "missing" "mixing $ and non-$ formats" } */ |
| printf ("%*1$d", i); /* { dg-warning "missing" "mixing $ and non-$ formats" } */ |
| scanf ("%1$d%d", ip, ip); /* { dg-warning "missing" "mixing $ and non-$ formats" } */ |
| scanf ("%*f%%%1$d%%%2$d", ip, ip); |
| printf ("%2$d", i); /* { dg-warning "operand" "$ number too large" } */ |
| printf ("%0$d", i); /* { dg-warning "operand" "$ number too small" } */ |
| printf ("%3$d%1$d", i, i, i); /* { dg-warning "before used" "unused $ operand" } */ |
| printf ("%2$d%1$d", i, i, i); /* { dg-warning "unused" "unused $ operand" } */ |
| vprintf ("%3$d%1$d", va); /* { dg-warning "before used" "unused $ operand" } */ |
| /* With scanf formats, gaps in the used arguments are allowed only if the |
| arguments are all pointers. In such a case, should only give the lesser |
| warning about unused arguments rather than the more serious one about |
| argument gaps. */ |
| scanf ("%3$d%1$d", ip, ip, ip); /* { dg-bogus "before used" "unused $ scanf pointer operand" } */ |
| /* { dg-warning "unused" "unused $ scanf pointer operand" { target *-*-* } .-1 } */ |
| /* If there are non-pointer arguments unused at the end, this is also OK. */ |
| scanf ("%3$d%1$d", ip, ip, ip, i); /* { dg-bogus "before used" "unused $ scanf pointer operand" } */ |
| /* { dg-warning "unused" "unused $ scanf pointer operand" { target *-*-* } .-1 } */ |
| scanf ("%3$d%1$d", ip, i, ip); /* { dg-warning "before used" "unused $ scanf non-pointer operand" } */ |
| /* Can't check the arguments in the vscanf case, so should suppose the |
| lesser problem. */ |
| vscanf ("%3$d%1$d", va); /* { dg-bogus "before used" "unused $ scanf pointer operand" } */ |
| /* { dg-warning "unused" "unused $ scanf pointer operand" { target *-*-* } .-1 } */ |
| scanf ("%2$*d%1$d", ip, ip); /* { dg-warning "operand" "operand number with suppression" } */ |
| printf ("%1$d%1$d", i); |
| scanf ("%1$d%1$d", ip); /* { dg-warning "more than once" "multiple use of scanf argument" } */ |
| } |
