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annotate gcc/testsuite/gcc.dg/c2x-utf8char-1.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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145
1830386684a0 gcc-9.2.0
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1 /* Test C2x UTF-8 characters. Test valid usages. */
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2 /* { dg-do compile } */
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3 /* { dg-options "-std=c2x -pedantic-errors" } */
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4
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5 unsigned char a = u8'a';
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6 _Static_assert (u8'a' == 97);
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7
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8 unsigned char b = u8'\0';
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9 _Static_assert (u8'\0' == 0);
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10
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11 unsigned char c = u8'\xff';
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12 _Static_assert (u8'\xff' == 255);
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13
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14 unsigned char d = u8'\377';
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15 _Static_assert (u8'\377' == 255);
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16
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17 _Static_assert (sizeof (u8'a') == 1);
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18 _Static_assert (sizeof (u8'\0') == 1);
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19 _Static_assert (sizeof (u8'\xff') == 1);
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20 _Static_assert (sizeof (u8'\377') == 1);
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21
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22 _Static_assert (_Generic (u8'a', unsigned char: 1, default: 2) == 1);
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23 _Static_assert (_Generic (u8'\0', unsigned char: 1, default: 2) == 1);
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24 _Static_assert (_Generic (u8'\xff', unsigned char: 1, default: 2) == 1);
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25 _Static_assert (_Generic (u8'\377', unsigned char: 1, default: 2) == 1);
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26
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27 #if u8'\0' - 1 < 0
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28 #error "UTF-8 constants not unsigned in preprocessor"
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29 #endif