diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/format/c90-printf-2.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/format/c90-printf-2.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/format/c90-printf-2.c b/gcc/testsuite/gcc.dg/format/c90-printf-2.c new file mode 100644 index 0000000..1f8c544 --- /dev/null +++ b/gcc/testsuite/gcc.dg/format/c90-printf-2.c @@ -0,0 +1,50 @@ +/* Test for printf formats. Formats using C99 features should be rejected + outside of C99 mode. +*/ +/* Origin: Joseph Myers <jsm28@cam.ac.uk> */ +/* { dg-do compile } */ +/* { dg-options "-std=iso9899:1990 -pedantic -Wformat" } */ + +typedef __SIZE_TYPE__ size_t; +typedef __PTRDIFF_TYPE__ ptrdiff_t; + +__extension__ typedef long long int llong; + +/* This next definition is a kludge. When GCC has a <stdint.h> it + should be used. +*/ +/* (T *) if E is zero, (void *) otherwise. */ +#define type_if_not(T, E) __typeof__(0 ? (T *)0 : (void *)(E)) + +/* (T *) if E is nonzero, (void *) otherwise. */ +#define type_if(T, E) type_if_not(T, !(E)) + +/* Combine pointer types, all but one (void *). */ +#define type_comb2(T1, T2) __typeof__(0 ? (T1)0 : (T2)0) +#define type_comb3(T1, T2, T3) type_comb2(T1, type_comb2(T2, T3)) + +#define maybe_int_ptr type_if(int, sizeof(int) == sizeof(llong)) +#define maybe_long_ptr type_if(long, sizeof(long) == sizeof(llong) && sizeof(long) > sizeof(int)) +#define maybe_long_long_ptr type_if(llong, sizeof(llong) > sizeof(long)) + +#define intmax_type_ptr type_comb3(maybe_int_ptr, maybe_long_ptr, maybe_long_long_ptr) + +typedef __typeof__(*((intmax_type_ptr)0)) intmax_t; + +extern int printf (const char *, ...); + +void +foo (int i, double d, llong ll, intmax_t j, size_t z, ptrdiff_t t) +{ + /* Some tests already in c90-printf-1.c, e.g. %lf. */ + /* The widths hh, ll, j, z, t are new. */ + printf ("%hhd", i); /* { dg-warning "length|C" "%hh in C90" } */ + printf ("%lld", ll); /* { dg-warning "length|C" "%ll in C90" } */ + printf ("%jd", j); /* { dg-warning "length|C" "%j in C90" } */ + printf ("%zu", z); /* { dg-warning "length|C" "%z in C90" } */ + printf ("%td", t); /* { dg-warning "length|C" "%t in C90" } */ + /* The formats F, a, A are new. */ + printf ("%F", d); /* { dg-warning "C" "%F in C90" } */ + printf ("%a", d); /* { dg-warning "C" "%a in C90" } */ + printf ("%A", d); /* { dg-warning "C" "%A in C90" } */ +} |