/* PR tree-optimization/80397 - missing -Wformat-overflow with arguments of enum types { dg-do compile } { dg-options "-O2 -Wall -Wformat-overflow=1 -ftrack-macro-expansion=0" } { dg-require-effective-target int32plus } */ void sink (char*); long long integer_range (long long min, long long max) { extern long long integer_value (void); long long n = integer_value (); return n < min || max < n ? min : n; } typedef enum { i0, imax = __INT_MAX__ } Int; typedef enum { ll0, llmax = __LONG_LONG_MAX__ } LLong; #define R(T, min, max) (T)integer_range (min, max) char buffer[1]; #define T(fmt, ...) \ __builtin_sprintf (buffer + 1, fmt, __VA_ARGS__), sink (buffer) void test_bool (_Bool b) { T ("%hhi", b); // { dg-warning "writing 1 byte" } T ( "%hi", b); // { dg-warning "writing 1 byte" } T ( "%i", b); // { dg-warning "writing 1 byte" } } void test_enum (void) { T ("%hhi", R (Int, 1, 1)); // { dg-warning "writing 1 byte" } T ("%hhi", R (Int, 1, 22)); // { dg-warning "between 1 and 2 bytes" } T ( "%hi", R (Int, 1, 2)); // { dg-warning "writing 1 " } T ( "%hi", R (Int, 1, 22)); // { dg-warning "between 1 and 2 " } T ( "%hi", R (Int, 22, 333)); // { dg-warning "between 2 and 3 " } T ( "%hi", R (Int, 333, 4444)); // { dg-warning "between 3 and 4 " } T ( "%i", R (Int, 1, 1)); // { dg-warning "writing 1 " } T ( "%i", R (Int, 1, 22)); // { dg-warning "between 1 and 2 " } T ( "%i", R (Int, 22, 333)); // { dg-warning "between 2 and 3 " } T ( "%i", R (Int, 333, 4444)); // { dg-warning "between 3 and 4 " } T ( "%i", R (Int, 4444, 55555)); // { dg-warning "between 4 and 5 " } #if __LONG_MAX__ == __LONG_LONG_MAX__ # define LLI "%li" #else # define LLI "%lli" #endif T (LLI, R (LLong, 1, 1)); // { dg-warning "writing 1 " } T (LLI, R (LLong, 1, 22)); // { dg-warning "between 1 and 2 " } T (LLI, R (LLong, 22, 333)); // { dg-warning "between 2 and 3 " } T (LLI, R (LLong, 333, 4444)); // { dg-warning "between 3 and 4 " } T (LLI, R (LLong, 4444, 55555)); // { dg-warning "between 4 and 5 " } T (LLI, R (LLong, 4444, 1234567890)); // { dg-warning "between 4 and 10 " } T (LLI, R (LLong, 4444, 12345678901)); // { dg-warning "between 4 and 11 " } }