| /* 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 { target { *-*-mingw* } } } */ |
| /* { dg-options "-std=iso9899:1999 -pedantic -Wformat" } */ |
| |
| #define USE_SYSTEM_FORMATS |
| #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, %j, %z, %t, %L constructions. */ |
| printf ("%hf", d); /* { dg-warning "length" "bad use of %h" } */ |
| printf ("%hF", d); /* { dg-warning "unknown|format" "bad use of %hF" } */ |
| 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 "unknown|format" "bad use of %ha" } */ |
| printf ("%hA", d); /* { dg-warning "unknown|format" "bad use of %hA" } */ |
| printf ("%hc", i); |
| printf ("%hs", (short *)s); |
| printf ("%hp", p); /* { dg-warning "length" "bad use of %h" } */ |
| printf ("%lc", lc); |
| printf ("%ls", ls); |
| printf ("%lp", p); /* { dg-warning "length|C" "bad use of %l" } */ |
| /* Valid uses of each bare conversion. */ |
| printf ("%d%i%o%u%x%X%f%e%E%g%G%c%s%p%n%%", i, i, u, u, u, u, |
| 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%-e%-E%-g%-G%-c%-s%-p", i, i, |
| u, u, u, u, 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%+e%+E%+g%+G\n", i, i, 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% e% E% g% G\n", i, i, 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%#g%#G", u, u, u, 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%08g%08G", i, i, |
| u, u, u, u, 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 - 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 "unknown|format" "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 "unknown|format" "0 flag ignored with - flag" } */ |
| printf ("%-08A", d); /* { dg-warning "unknown|format" "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 "unknown|format" "%hhn is unsupported" } */ |
| printf ("%hhn", us); /* { dg-warning "unknown|format" "%hhn is unsupported" } */ |
| } |