diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/format/c99-printf-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/format/c99-printf-1.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/format/c99-printf-1.c b/gcc/testsuite/gcc.dg/format/c99-printf-1.c new file mode 100644 index 000000000..729e41c3d --- /dev/null +++ b/gcc/testsuite/gcc.dg/format/c99-printf-1.c @@ -0,0 +1,197 @@ +/* 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" { 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" } */ +} |