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/* Test for printf formats. Formats using C99 features, including cases
where C99 specifies some aspect of the format to be ignored or where
the behavior is undefined.
*/
/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
/* { dg-do compile } */
/* { dg-options "-std=iso9899:1999 -pedantic -Wformat" } */
#include "format.h"
void
foo (int i, unsigned int u, double d, char *s, void *p, int *n,
long double ld, wint_t lc, wchar_t *ls, long long int ll,
unsigned long long int ull, signed char *ss, unsigned char *us,
long long int *lln, intmax_t j, uintmax_t uj, intmax_t *jn,
size_t z, signed_size_t sz, signed_size_t *zn,
ptrdiff_t t, ptrdiff_t *tn)
{
/* See ISO/IEC 9899:1999 (E) subclause 7.19.6.1 (pages 273-281).
We do not repeat here most of the checks for correct C90 formats
or completely broken formats.
*/
/* Valid and invalid %h, %hh, %l, %ll, %j, %z, %t, %L constructions. */
printf ("%hf", d); /* { dg-warning "length" "bad use of %h" } */
printf ("%hF", d); /* { dg-warning "length" "bad use of %h" } */
printf ("%he", d); /* { dg-warning "length" "bad use of %h" } */
printf ("%hE", d); /* { dg-warning "length" "bad use of %h" } */
printf ("%hg", d); /* { dg-warning "length" "bad use of %h" } */
printf ("%hG", d); /* { dg-warning "length" "bad use of %h" } */
printf ("%ha", d); /* { dg-warning "length" "bad use of %h" } */
printf ("%hA", d); /* { dg-warning "length" "bad use of %h" } */
printf ("%hc", i); /* { dg-warning "length" "bad use of %h" } */
printf ("%hs", s); /* { dg-warning "length" "bad use of %h" } */
printf ("%hp", p); /* { dg-warning "length" "bad use of %h" } */
printf ("%hhd%hhi%hho%hhu%hhx%hhX", i, i, u, u, u, u);
printf ("%hhn", ss);
printf ("%hhf", d); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hhF", d); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hhe", d); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hhE", d); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hhg", d); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hhG", d); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hha", d); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hhA", d); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hhc", i); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hhs", s); /* { dg-warning "length" "bad use of %hh" } */
printf ("%hhp", p); /* { dg-warning "length" "bad use of %hh" } */
printf ("%lc", lc);
printf ("%ls", ls);
printf ("%lf%lF%le%lE%lg%lG%la%lA", d, d, d, d, d, d, d, d);
printf ("%lp", p); /* { dg-warning "length|C" "bad use of %l" } */
printf ("%lld%lli%llo%llu%llx%llX", ll, ll, ull, ull, ull, ull);
printf ("%lln", lln);
printf ("%llf", d); /* { dg-warning "length" "bad use of %ll" } */
printf ("%llF", d); /* { dg-warning "length" "bad use of %ll" } */
printf ("%lle", d); /* { dg-warning "length" "bad use of %ll" } */
printf ("%llE", d); /* { dg-warning "length" "bad use of %ll" } */
printf ("%llg", d); /* { dg-warning "length" "bad use of %ll" } */
printf ("%llG", d); /* { dg-warning "length" "bad use of %ll" } */
printf ("%lla", d); /* { dg-warning "length" "bad use of %ll" } */
printf ("%llA", d); /* { dg-warning "length" "bad use of %ll" } */
printf ("%llc", i); /* { dg-warning "length" "bad use of %ll" } */
printf ("%lls", s); /* { dg-warning "length" "bad use of %ll" } */
printf ("%llp", p); /* { dg-warning "length" "bad use of %ll" } */
printf ("%jd%ji%jo%ju%jx%jX", j, j, uj, uj, uj, uj); /* { dg-bogus "length" "bogus %j warning" } */
printf ("%jn", jn); /* { dg-bogus "length" "bogus %j warning" } */
printf ("%jf", d); /* { dg-warning "length" "bad use of %j" } */
printf ("%jF", d); /* { dg-warning "length" "bad use of %j" } */
printf ("%je", d); /* { dg-warning "length" "bad use of %j" } */
printf ("%jE", d); /* { dg-warning "length" "bad use of %j" } */
printf ("%jg", d); /* { dg-warning "length" "bad use of %j" } */
printf ("%jG", d); /* { dg-warning "length" "bad use of %j" } */
printf ("%ja", d); /* { dg-warning "length" "bad use of %j" } */
printf ("%jA", d); /* { dg-warning "length" "bad use of %j" } */
printf ("%jc", i); /* { dg-warning "length" "bad use of %j" } */
printf ("%js", s); /* { dg-warning "length" "bad use of %j" } */
printf ("%jp", p); /* { dg-warning "length" "bad use of %j" } */
printf ("%zd%zi%zo%zu%zx%zX", sz, sz, z, z, z, z);
printf ("%zn", zn);
printf ("%zf", d); /* { dg-warning "length" "bad use of %z" } */
printf ("%zF", d); /* { dg-warning "length" "bad use of %z" } */
printf ("%ze", d); /* { dg-warning "length" "bad use of %z" } */
printf ("%zE", d); /* { dg-warning "length" "bad use of %z" } */
printf ("%zg", d); /* { dg-warning "length" "bad use of %z" } */
printf ("%zG", d); /* { dg-warning "length" "bad use of %z" } */
printf ("%za", d); /* { dg-warning "length" "bad use of %z" } */
printf ("%zA", d); /* { dg-warning "length" "bad use of %z" } */
printf ("%zc", i); /* { dg-warning "length" "bad use of %z" } */
printf ("%zs", s); /* { dg-warning "length" "bad use of %z" } */
printf ("%zp", p); /* { dg-warning "length" "bad use of %z" } */
printf ("%td%ti%to%tu%tx%tX", t, t, t, t, t, t);
printf ("%tn", tn);
printf ("%tf", d); /* { dg-warning "length" "bad use of %t" } */
printf ("%tF", d); /* { dg-warning "length" "bad use of %t" } */
printf ("%te", d); /* { dg-warning "length" "bad use of %t" } */
printf ("%tE", d); /* { dg-warning "length" "bad use of %t" } */
printf ("%tg", d); /* { dg-warning "length" "bad use of %t" } */
printf ("%tG", d); /* { dg-warning "length" "bad use of %t" } */
printf ("%ta", d); /* { dg-warning "length" "bad use of %t" } */
printf ("%tA", d); /* { dg-warning "length" "bad use of %t" } */
printf ("%tc", i); /* { dg-warning "length" "bad use of %t" } */
printf ("%ts", s); /* { dg-warning "length" "bad use of %t" } */
printf ("%tp", p); /* { dg-warning "length" "bad use of %t" } */
printf ("%Le%LE%Lf%LF%Lg%LG%La%LA", ld, ld, ld, ld, ld, ld, ld, ld);
/* These next six are accepted by GCC as referring to long long,
but -pedantic correctly warns.
*/
printf ("%Ld", ll); /* { dg-warning "does not support" "bad use of %L" } */
printf ("%Li", ll); /* { dg-warning "does not support" "bad use of %L" } */
printf ("%Lo", ull); /* { dg-warning "does not support" "bad use of %L" } */
printf ("%Lu", ull); /* { dg-warning "does not support" "bad use of %L" } */
printf ("%Lx", ull); /* { dg-warning "does not support" "bad use of %L" } */
printf ("%LX", ull); /* { dg-warning "does not support" "bad use of %L" } */
printf ("%Lc", i); /* { dg-warning "length" "bad use of %L" } */
printf ("%Ls", s); /* { dg-warning "length" "bad use of %L" } */
printf ("%Lp", p); /* { dg-warning "length" "bad use of %L" } */
printf ("%Ln", n); /* { dg-warning "length" "bad use of %L" } */
/* Valid uses of each bare conversion. */
printf ("%d%i%o%u%x%X%f%F%e%E%g%G%a%A%c%s%p%n%%", i, i, u, u, u, u,
d, d, d, d, d, d, d, d, i, s, p, n);
/* Uses of the - flag (valid on all non-%, non-n conversions). */
printf ("%-d%-i%-o%-u%-x%-X%-f%-F%-e%-E%-g%-G%-a%-A%-c%-s%-p", i, i,
u, u, u, u, d, d, d, d, d, d, d, d, i, s, p);
printf ("%-n", n); /* { dg-warning "flag" "bad use of %-n" } */
/* Uses of the + flag (valid on signed conversions only). */
printf ("%+d%+i%+f%+F%+e%+E%+g%+G%+a%+A\n", i, i, d, d, d, d, d, d, d, d);
printf ("%+o", u); /* { dg-warning "flag" "bad use of + flag" } */
printf ("%+u", 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 ("%+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" } */
/* Uses of the space flag (valid on signed conversions only, and ignored
with +).
*/
printf ("% +d", i); /* { dg-warning "use of both|ignored" "use of space and + flags" } */
printf ("%+ d", i); /* { dg-warning "use of both|ignored" "use of space and + flags" } */
printf ("% d% i% f% F% e% E% g% G% a% A\n", i, i, d, d, d, d, d, d, d, d);
printf ("% o", u); /* { dg-warning "flag" "bad use of space flag" } */
printf ("% u", u); /* { dg-warning "flag" "bad use of space flag" } */
printf ("% x", u); /* { dg-warning "flag" "bad use of space flag" } */
printf ("% X", u); /* { dg-warning "flag" "bad use of space flag" } */
printf ("% c", i); /* { dg-warning "flag" "bad use of space flag" } */
printf ("% s", s); /* { dg-warning "flag" "bad use of space flag" } */
printf ("% p", p); /* { dg-warning "flag" "bad use of space flag" } */
printf ("% n", n); /* { dg-warning "flag" "bad use of space flag" } */
/* Uses of the # flag. */
printf ("%#o%#x%#X%#e%#E%#f%#F%#g%#G%#a%#A", u, u, u, d, d, d, d,
d, d, d, d);
printf ("%#d", i); /* { dg-warning "flag" "bad use of # flag" } */
printf ("%#i", i); /* { dg-warning "flag" "bad use of # flag" } */
printf ("%#u", u); /* { 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" } */
/* Uses of the 0 flag. */
printf ("%08d%08i%08o%08u%08x%08X%08e%08E%08f%08F%08g%08G%08a%08A", i, i,
u, u, u, u, d, d, d, d, d, d, d, d);
printf ("%0c", i); /* { dg-warning "flag" "bad use of 0 flag" } */
printf ("%0s", s); /* { dg-warning "flag" "bad use of 0 flag" } */
printf ("%0p", p); /* { dg-warning "flag" "bad use of 0 flag" } */
printf ("%0n", n); /* { dg-warning "flag" "bad use of 0 flag" } */
/* 0 flag ignored with precision for certain types, not others. */
printf ("%08.5d", i); /* { dg-warning "ignored" "0 flag ignored with precision" } */
printf ("%08.5i", i); /* { dg-warning "ignored" "0 flag ignored with precision" } */
printf ("%08.5o", u); /* { dg-warning "ignored" "0 flag ignored with precision" } */
printf ("%08.5u", u); /* { dg-warning "ignored" "0 flag ignored with precision" } */
printf ("%08.5x", u); /* { dg-warning "ignored" "0 flag ignored with precision" } */
printf ("%08.5X", u); /* { dg-warning "ignored" "0 flag ignored with precision" } */
printf ("%08.5f%08.5F%08.5e%08.5E%08.5g%08.5G%08.5a%08.5A",
d, d, d, d, d, d, d, d);
/* 0 flag ignored with - flag. */
printf ("%-08d", i); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08i", i); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08o", u); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08u", u); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08x", u); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08X", u); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08e", d); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08E", d); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08f", d); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08F", d); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08g", d); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08G", d); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08a", d); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
printf ("%-08A", d); /* { dg-warning "flags|ignored" "0 flag ignored with - flag" } */
/* Various tests of bad argument types. Mostly covered in c90-printf-1.c;
here just test for pointer target sign with %hhn. (Probably allowed
by the standard, but a bad idea, so GCC should diagnose if what
is used is not signed char *.)
*/
printf ("%hhn", s); /* { dg-warning "format" "%hhn plain char" } */
printf ("%hhn", us); /* { dg-warning "format" "%hhn unsigned char" } */
}
|
