80 lines
3.8 KiB
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80 lines
3.8 KiB
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<title>Method Modifiers - STABS</title>
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<link rel="prev" href="Protections.html#Protections" title="Protections">
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Copyright (C) 1992-2019 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by Julia Menapace, Jim Kingdon,
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and David MacKenzie.
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Permission is granted to copy, distribute and/or modify this document
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<a name="Method-Modifiers"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Virtual-Methods.html#Virtual-Methods">Virtual Methods</a>,
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Previous: <a rel="previous" accesskey="p" href="Protections.html#Protections">Protections</a>,
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Up: <a rel="up" accesskey="u" href="Cplusplus.html#Cplusplus">Cplusplus</a>
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</div>
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<h3 class="section">8.10 Method Modifiers (<code>const</code>, <code>volatile</code>, <code>const volatile</code>)</h3>
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<p><< based on a6.C >>
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<p>In the class example described above all the methods have the normal
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modifier. This method modifier information is located just after the
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protection information for the method. This field has four possible
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character values. Normal methods use ‘<samp><span class="samp">A</span></samp>’, const methods use
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‘<samp><span class="samp">B</span></samp>’, volatile methods use ‘<samp><span class="samp">C</span></samp>’, and const volatile methods use
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‘<samp><span class="samp">D</span></samp>’. Consider the class definition below:
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<pre class="example"> class A {
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public:
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int ConstMeth (int arg) const { return arg; };
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char VolatileMeth (char arg) volatile { return arg; };
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float ConstVolMeth (float arg) const volatile {return arg; };
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};
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</pre>
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<p>This class is described by the following stab:
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<pre class="display"> .stabs "class(A):sym_desc(struct)type_def(20)=type_desc(struct)struct_bytes(1)
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meth_name(ConstMeth)::type_def(21)sym_desc(method)
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returning(int);:arg(int);protection(public)modifier(const)virtual(no);
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meth_name(VolatileMeth)::type_def(22)=sym_desc(method)
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returning(char);:arg(char);protection(public)modifier(volatile)virt(no)
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meth_name(ConstVolMeth)::type_def(23)=sym_desc(method)
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returning(float);:arg(float);protection(public)modifier(const volatile)
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virtual(no);;", <small class="dots">...</small>
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</pre>
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<pre class="example"> .stabs "A:T20=s1ConstMeth::21=##1;:i;2B.;VolatileMeth::22=##2;:c;2C.;
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ConstVolMeth::23=##12;:f;2D.;;",128,0,0,0
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</pre>
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</body></html>
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