/* PR c++/87996 - "size of array is negative" error when SIZE_MAX/2 < sizeof(array) <= SIZE_MAX { dg-do compile } { dg-options "-ftrack-macro-expansion=0" } */ #define INT16_MAX __INT16_MAX__ #define UINT16_MAX ((INT16_MAX << 1) + 1) #define DIFF_MAX __PTRDIFF_MAX__ #define SIZE_MAX __SIZE_MAX__ typedef __INT16_TYPE__ int16_t; typedef __INT32_TYPE__ int32_t; typedef __SIZE_TYPE__ size_t; /* Verify errors for types. */ typedef char i8a1_d_m1_t[DIFF_MAX - 1]; /* The following should also be diagnosed because the difference between &i8a1_dx[0] and &i8a1_dx[sizeof i8a1_dx] cannot be represented. typedef char i8a1_d_t[DIFF_MAX]; */ typedef char i8a1_d_p1_t[(size_t)DIFF_MAX + 1]; /* { dg-error "size .\[0-9\]+. of array .i8a1_d_p1_t. exceeds maximum object size .\[0-9\]+.|is too large" } */ typedef char i8a1_s_t[SIZE_MAX]; /* { dg-error "size .\[0-9\]+. of array .i8a1_s_t. exceeds maximum object size .\[0-9\]+.|is too large" } */ typedef int16_t i16a_s_d2_t[SIZE_MAX / 2]; /* { dg-error "size .\[0-9\]+. of array .i16a_s_d2_t. exceeds maximum object size .\[0-9\]+." } */ typedef int16_t i16a_s_d3_t[SIZE_MAX / 3]; /* { dg-error "size .\[0-9\]+. of array .i16a_s_d3_t. exceeds maximum object size .\[0-9\]+." } */ typedef int16_t i16a_s_d4_m1_t[SIZE_MAX / 4 - 1]; typedef int16_t i16a_s_d4_p1_t[SIZE_MAX / 4 + 1]; /* { dg-error "size .\[0-9\]+. of array .i16a_s_d4_p1_t. exceeds maximum object size .\[0-9\]+." } */ /* The internal computation overflows the message doesn't show the object size (but GCC should compute the result and print it anyway). */ typedef int32_t i32a_s_d2_t[SIZE_MAX / 2]; /* { dg-error "size of array .i32a_s_d2_t. exceeds maximum object size .\[0-9\]+." } */ typedef int32_t i32a_s_d3_t[SIZE_MAX / 3]; /* { dg-error "size of array .i32a_s_d3_t. exceeds maximum object size .\[0-9\]+." } */ typedef int32_t i32a_s_d4_t[SIZE_MAX / 4]; /* { dg-error "size .\[0-9\]+. of array .i32a_s_d4_t. exceeds maximum object size .\[0-9\]+." } */ /* Verify errors for objects. */ char i8a1_d_m1[DIFF_MAX - 1]; /* The following should also be diagnosed because the difference between &i8a1_dx[0] and &i8a1_dx[sizeof i8a1_dx] cannot be represented. char i8a1_d[DIFF_MAX]; */ char i8a_d_p1[(size_t)DIFF_MAX + 1]; /* { dg-error "size .\[0-9\]+. of array .i8a_d_p1. exceeds maximum object size .\[0-9\]+.|is too large" } */ char i8a_s[SIZE_MAX]; /* { dg-error "size .\[0-9\]+. of array .i8a_s. exceeds maximum object size .\[0-9\]+.|is too large" } */ int16_t i16a_s_d2[SIZE_MAX / 2]; /* { dg-error "size .\[0-9\]+. of array .i16a_s_d2. exceeds maximum object size .\[0-9\]+." } */ int16_t i16a_s_d3[SIZE_MAX / 3]; /* { dg-error "size .\[0-9\]+. of array .i16a_s_d3. exceeds maximum object size .\[0-9\]+." } */ int16_t i16a_sz_d4_m1[SIZE_MAX / 4 - 1]; int16_t i16a_sz_d4_p1[SIZE_MAX / 4 + 1]; /* { dg-error "size .\[0-9\]+. of array .i16a_sz_d4_p1. exceeds maximum object size .\[0-9\]+." } */ /* The internal computation overflows the message doesn't show the object size (but GCC should compute the result and print it anyway). */ int32_t i32a_s_d2[SIZE_MAX / 2]; /* { dg-error "size of array .i32a_s_d2. exceeds maximum object size .\[0-9\]+." } */ int32_t i32a_s_d3[SIZE_MAX / 3]; /* { dg-error "size of array .i32a_s_d3. exceeds maximum object size .\[0-9\]+." } */ int32_t i32a_s_d4[SIZE_MAX / 4]; /* { dg-error "size .\[0-9\]+. of array .i32a_s_d4. exceeds maximum object size .\[0-9\]+." } */