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annotate gcc/testsuite/gcc.dg/torture/builtin-sprintf.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children 1830386684a0
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131
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1 /* PR tree-optimization/86274 - SEGFAULT when logging std::to_string(NAN)
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2 { dg-do run }
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3 { dg-options "-O2 -Wall" } */
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4
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5 #define X "0xdeadbeef"
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6 #define nan(x) __builtin_nan (x)
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7
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8 volatile double nan_0 = nan ("0");
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9 volatile double nan_x = nan (X);
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10
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11 int main (void)
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12 {
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13 char buf[80];
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14
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15 /* Verify that folded results match those of the library calls. */
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16 int cst_n_0 = __builtin_sprintf (buf, "%g", nan ("0"));
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17 int cst_n_x = __builtin_sprintf (buf, "%g", nan (X));
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18
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19 int var_n_0 = __builtin_sprintf (buf, "%g", nan_0);
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20 int var_n_x = __builtin_sprintf (buf, "%g", nan_x);
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21
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22 if (cst_n_0 != var_n_0)
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23 __builtin_abort ();
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24
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25 if (cst_n_x != var_n_x)
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26 __builtin_abort ();
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27
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28 return 0;
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29 }