// { dg-do assemble }
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// { dg-do assemble }
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// { dg-options "-Wsign-conversion" }
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// { dg-options "-Wsign-conversion" }
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// Copyright (C) 1999 Free Software Foundation, Inc.
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// Copyright (C) 1999 Free Software Foundation, Inc.
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// Contributed by Nathan Sidwell 21 Nov 1999
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// Contributed by Nathan Sidwell 21 Nov 1999
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// make sure we only warn on assigning a negative (signed) value
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// make sure we only warn on assigning a negative (signed) value
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// to an unsigned type, and don't warn just if the unsigned value
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// to an unsigned type, and don't warn just if the unsigned value
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// happens to have the top bit set.
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// happens to have the top bit set.
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typedef unsigned U;
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typedef unsigned U;
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void fn (unsigned);
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void fn (unsigned);
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void fu ()
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void fu ()
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{
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{
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unsigned s1 = -1u;
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unsigned s1 = -1u;
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unsigned s2(-1u);
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unsigned s2(-1u);
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unsigned volatile s3 = -1u;
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unsigned volatile s3 = -1u;
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unsigned const s4 = -1u;
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unsigned const s4 = -1u;
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unsigned const &s5(-1u);
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unsigned const &s5(-1u);
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s1 = -1u;
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s1 = -1u;
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fn (-1u);
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fn (-1u);
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}
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}
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void fU ()
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void fU ()
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{
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{
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U s1 = -1u;
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U s1 = -1u;
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U s2(-1u);
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U s2(-1u);
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U volatile s3 = -1u;
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U volatile s3 = -1u;
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U const s4 = -1u;
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U const s4 = -1u;
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U const &s5(-1u);
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U const &s5(-1u);
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s1 = -1u;
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s1 = -1u;
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fn (-1u);
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fn (-1u);
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}
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}
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void fs ()
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void fs ()
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{
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{
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unsigned s1 = -1; // { dg-warning "" } initialization
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unsigned s1 = -1; // { dg-warning "" } initialization
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unsigned s2(-1); // { dg-warning "" } initialization
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unsigned s2(-1); // { dg-warning "" } initialization
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unsigned volatile s3 = -1;// { dg-warning "" } initialization
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unsigned volatile s3 = -1;// { dg-warning "" } initialization
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unsigned const s4 = -1; // { dg-warning "" } initialization
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unsigned const s4 = -1; // { dg-warning "" } initialization
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unsigned const &s5(-1); // { dg-warning "" } initialization
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unsigned const &s5(-1); // { dg-warning "" } initialization
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s1 = -1; // { dg-warning "" } assignment
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s1 = -1; // { dg-warning "" } assignment
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fn (-1); // { dg-warning "" } passing
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fn (-1); // { dg-warning "" } passing
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}
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}
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void fss ()
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void fss ()
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{
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{
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unsigned s1 = -(-1);
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unsigned s1 = -(-1);
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unsigned s2(-(-1));
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unsigned s2(-(-1));
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unsigned volatile s3 = -(-1);
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unsigned volatile s3 = -(-1);
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unsigned const s4 = -(-1);
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unsigned const s4 = -(-1);
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unsigned const &s5(-(-1));
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unsigned const &s5(-(-1));
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s1 = -(-1);
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s1 = -(-1);
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fn (-(-1));
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fn (-(-1));
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}
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}
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void fsz ()
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void fsz ()
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{
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{
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unsigned s1 = -0;
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unsigned s1 = -0;
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unsigned s2(-0);
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unsigned s2(-0);
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unsigned volatile s3 = -0;
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unsigned volatile s3 = -0;
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unsigned const s4 = -0;
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unsigned const s4 = -0;
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unsigned const &s5(-0);
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unsigned const &s5(-0);
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s1 = -0;
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s1 = -0;
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fn (-0);
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fn (-0);
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}
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}
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