/* 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 */ /* { 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" { target *-*-* } } */ printf ("%jn", jn); /* { dg-bogus "length" "bogus %j warning" { target *-*-* } } */ 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" } */ }
