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annotate gcc/testsuite/g++.dg/warn/nonnull1.C @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
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1 // Test that "nonnull" attribute works for C++.
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2 // Origin: Joseph Myers <jsm@polyomino.org.uk>
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3 // { dg-do compile }
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4 // { dg-options "-Wall" }
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5
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6 // The "nonnull" attribute is thoroughly tested for C, so here we
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7 // simply test that it works at all, as at one point the relevant
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8 // checking code was only called for C.
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9
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10 extern void f (char *) __attribute__((nonnull));
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11
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12 void
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13 g ()
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14 {
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15 f (0); // { dg-warning "null" "null argument" }
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16 }