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145
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1 /* PR c++/87996 - "size of array is negative" error when SIZE_MAX/2 < sizeof(array) <= SIZE_MAX
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2 { dg-do compile }
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3 { dg-options "-ftrack-macro-expansion=0" } */
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4
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5 #define INT16_MAX __INT16_MAX__
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6 #define UINT16_MAX ((INT16_MAX << 1) + 1)
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7
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8 #define DIFF_MAX __PTRDIFF_MAX__
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9 #define SIZE_MAX __SIZE_MAX__
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10
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11 typedef __INT16_TYPE__ int16_t;
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12 typedef __INT32_TYPE__ int32_t;
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13 typedef __SIZE_TYPE__ size_t;
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14
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15 /* Verify errors for types. */
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16
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17 typedef char i8a1_d_m1_t[DIFF_MAX - 1];
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18 /* The following should also be diagnosed because the difference between
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19 &i8a1_dx[0] and &i8a1_dx[sizeof i8a1_dx] cannot be represented.
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20 typedef char i8a1_d_t[DIFF_MAX];
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21 */
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22
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23 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" } */
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24
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25 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" } */
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26
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27 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 .\[0-9\]+." } */
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28 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 .\[0-9\]+." } */
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29 typedef int16_t i16a_s_d4_m1_t[SIZE_MAX / 4 - 1];
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30 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 .\[0-9\]+." } */
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31
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32 /* The internal computation overflows the message doesn't show the object
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33 size (but GCC should compute the result and print it anyway). */
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34 typedef int32_t i32a_s_d2_t[SIZE_MAX / 2]; /* { dg-error "size of array .i32a_s_d2_t. exceeds maximum object size .\[0-9\]+." } */
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35 typedef int32_t i32a_s_d3_t[SIZE_MAX / 3]; /* { dg-error "size of array .i32a_s_d3_t. exceeds maximum object size .\[0-9\]+." } */
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36 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 .\[0-9\]+." } */
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37
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38
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39 /* Verify errors for objects. */
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40
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41 char i8a1_d_m1[DIFF_MAX - 1];
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42 /* The following should also be diagnosed because the difference between
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43 &i8a1_dx[0] and &i8a1_dx[sizeof i8a1_dx] cannot be represented.
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44 char i8a1_d[DIFF_MAX];
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45 */
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46
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47 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" } */
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48
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49 char i8a_s[SIZE_MAX]; /* { dg-error "size .\[0-9\]+. of array .i8a_s. exceeds maximum object size .\[0-9\]+.|is too large" } */
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50
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51 int16_t i16a_s_d2[SIZE_MAX / 2]; /* { dg-error "size .\[0-9\]+. of array .i16a_s_d2. exceeds maximum object size .\[0-9\]+." } */
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52 int16_t i16a_s_d3[SIZE_MAX / 3]; /* { dg-error "size .\[0-9\]+. of array .i16a_s_d3. exceeds maximum object size .\[0-9\]+." } */
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53 int16_t i16a_sz_d4_m1[SIZE_MAX / 4 - 1];
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54 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 .\[0-9\]+." } */
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55
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56 /* The internal computation overflows the message doesn't show the object
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57 size (but GCC should compute the result and print it anyway). */
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58 int32_t i32a_s_d2[SIZE_MAX / 2]; /* { dg-error "size of array .i32a_s_d2. exceeds maximum object size .\[0-9\]+." } */
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59 int32_t i32a_s_d3[SIZE_MAX / 3]; /* { dg-error "size of array .i32a_s_d3. exceeds maximum object size .\[0-9\]+." } */
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60 int32_t i32a_s_d4[SIZE_MAX / 4]; /* { dg-error "size .\[0-9\]+. of array .i32a_s_d4. exceeds maximum object size .\[0-9\]+." } */
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