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361 lines
8.0 KiB
C
361 lines
8.0 KiB
C
/* PR #1220 - test constant ternary, AND and OR */
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#include <stdio.h>
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/* test AND/OR, results as integers */
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#define CONTEXT_A(x) do {\
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s = 0, flags = 0, t = (x),\
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printf("%3d %2X: %d\n", s, flags, t);\
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} while (0)
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/* test AND/OR in ternary context */
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#define CONTEXT_B(x) do {\
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s = 0, flags = 0, t = (x ? 42 : -42),\
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printf("%3d %2X: %d\n", s, flags, t);\
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} while (0)
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int s, t;
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unsigned flags;
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int f(int x)
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/* The call to this function should be and only be skipped strictly according to
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** the short-circuit evaluation rule.
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*/
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{
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flags |= (x != 0) << s;
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++s;
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return x;
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}
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#define _A f(a)
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#define _B f(b)
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#define _C f(c)
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#define _D f(d)
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#define _T (f(0), 256)
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#define _F (f(256), 0)
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void f0()
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/* constant short-circuit */
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{
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printf("f0()\n");
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CONTEXT_A(_T && _T && _T);
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CONTEXT_A(_F && _F && _F);
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CONTEXT_A(_T || _T || _T);
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CONTEXT_A(_F || _F || _F);
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CONTEXT_A(_T && _T || _T && _T);
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CONTEXT_A(_F && _F || _F && _F);
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CONTEXT_A(_T && _F || _T && _F);
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CONTEXT_A(_F && _T || _F && _T);
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CONTEXT_A((_T && _T) || (_T && _T));
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CONTEXT_A((_F && _F) || (_F && _F));
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CONTEXT_A((_T && _F) || (_T && _F));
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CONTEXT_A((_F && _T) || (_F && _T));
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CONTEXT_A((_T || _T) && (_T || _T));
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CONTEXT_A((_F || _F) && (_F || _F));
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CONTEXT_A((_T || _F) && (_T || _F));
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CONTEXT_A((_F || _T) && (_F || _T));
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printf("\n");
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}
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void f1(int a, int b, int c)
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/* AND */
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{
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printf("f1(%d, %d, %d)\n", a, b, c);
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CONTEXT_A(_A && _B && _C);
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CONTEXT_A(_T && _B && _C);
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CONTEXT_A(_A && _T && _C);
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CONTEXT_A(_A && _B && _T);
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CONTEXT_A(_F && _B && _C);
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CONTEXT_A(_A && _F && _C);
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CONTEXT_A(_A && _B && _F);
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CONTEXT_A(_T && _T && _C);
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CONTEXT_A(_A && _T && _T);
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CONTEXT_A(_T && _B && _T);
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printf("\n");
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}
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void f2(int a, int b, int c)
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/* OR */
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{
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printf("f2(%d, %d, %d)\n", a, b, c);
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CONTEXT_A(_A || _B || _C);
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CONTEXT_A(_T || _B || _C);
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CONTEXT_A(_A || _T || _C);
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CONTEXT_A(_A || _B || _T);
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CONTEXT_A(_F || _B || _C);
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CONTEXT_A(_A || _F || _C);
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CONTEXT_A(_A || _B || _F);
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CONTEXT_A(_F || _F || _C);
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CONTEXT_A(_A || _F || _F);
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CONTEXT_A(_F || _B || _F);
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printf("\n");
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}
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void f3(int a, int b, int c, int d)
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/* AND and OR */
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{
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printf("f3(%d, %d, %d, %d)\n", a, b, c, d);
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CONTEXT_A(_A && _B || _C && _D);
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CONTEXT_A(_T && _T || _C && _D);
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CONTEXT_A(_A && _B || _T && _T);
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CONTEXT_A(_T && _B || _C && _D);
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CONTEXT_A(_A && _T || _C && _D);
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CONTEXT_A(_A && _B || _T && _D);
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CONTEXT_A(_A && _B || _C && _T);
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CONTEXT_A(_F && _B || _C && _D);
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CONTEXT_A(_A && _F || _C && _D);
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CONTEXT_A(_A && _B || _F && _D);
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CONTEXT_A(_A && _B || _C && _F);
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printf("\n");
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}
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void f4(int a, int b, int c, int d)
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/* AND as top-level expression inside OR context */
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{
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printf("f4(%d, %d, %d, %d)\n", a, b, c, d);
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CONTEXT_A((_A && _B) || (_C && _D));
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CONTEXT_A((_T && _T) || (_C && _D));
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CONTEXT_A((_A && _B) || (_T && _T));
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CONTEXT_A((_T && _B) || (_C && _D));
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CONTEXT_A((_A && _T) || (_C && _D));
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CONTEXT_A((_A && _B) || (_T && _D));
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CONTEXT_A((_A && _B) || (_C && _T));
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CONTEXT_A((_F && _B) || (_C && _D));
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CONTEXT_A((_A && _F) || (_C && _D));
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CONTEXT_A((_A && _B) || (_F && _D));
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CONTEXT_A((_A && _B) || (_C && _F));
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printf("\n");
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}
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void f5(int a, int b, int c, int d)
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/* OR as top-level expression inside AND context */
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{
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printf("f5(%d, %d, %d, %d)\n", a, b, c, d);
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CONTEXT_A((_A || _B) && (_C || _D));
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CONTEXT_A((_F || _F) && (_C || _D));
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CONTEXT_A((_A || _B) && (_F || _F));
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CONTEXT_A((_T || _B) && (_C || _D));
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CONTEXT_A((_A || _T) && (_C || _D));
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CONTEXT_A((_A || _B) && (_T || _D));
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CONTEXT_A((_A || _B) && (_C || _T));
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CONTEXT_A((_F || _B) && (_C || _D));
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CONTEXT_A((_A || _F) && (_C || _D));
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CONTEXT_A((_A || _B) && (_F || _D));
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CONTEXT_A((_A || _B) && (_C || _F));
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printf("\n");
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}
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void f0_B()
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/* constant short-circuit */
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{
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printf("f0_B()\n");
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CONTEXT_B(_T && _T && _T);
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CONTEXT_B(_F && _F && _F);
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CONTEXT_B(_T || _T || _T);
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CONTEXT_B(_F || _F || _F);
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CONTEXT_B(_T && _T || _T && _T);
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CONTEXT_B(_F && _F || _F && _F);
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CONTEXT_B(_T && _F || _T && _F);
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CONTEXT_B(_F && _T || _F && _T);
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CONTEXT_B((_T && _T) || (_T && _T));
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CONTEXT_B((_F && _F) || (_F && _F));
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CONTEXT_B((_T && _F) || (_T && _F));
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CONTEXT_B((_F && _T) || (_F && _T));
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CONTEXT_B((_T || _T) && (_T || _T));
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CONTEXT_B((_F || _F) && (_F || _F));
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CONTEXT_B((_T || _F) && (_T || _F));
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CONTEXT_B((_F || _T) && (_F || _T));
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printf("\n");
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}
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void f1_B(int a, int b, int c)
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/* AND */
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{
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printf("f1_B(%d, %d, %d)\n", a, b, c);
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CONTEXT_B(_A && _B && _C);
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CONTEXT_B(_T && _B && _C);
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CONTEXT_B(_A && _T && _C);
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CONTEXT_B(_A && _B && _T);
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CONTEXT_B(_F && _B && _C);
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CONTEXT_B(_A && _F && _C);
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CONTEXT_B(_A && _B && _F);
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CONTEXT_B(_T && _T && _C);
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CONTEXT_B(_A && _T && _T);
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CONTEXT_B(_T && _B && _T);
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printf("\n");
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}
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void f2_B(int a, int b, int c)
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/* OR */
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{
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printf("f2_B(%d, %d, %d)\n", a, b, c);
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CONTEXT_B(_A || _B || _C);
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CONTEXT_B(_T || _B || _C);
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CONTEXT_B(_A || _T || _C);
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CONTEXT_B(_A || _B || _T);
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CONTEXT_B(_F || _B || _C);
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CONTEXT_B(_A || _F || _C);
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CONTEXT_B(_A || _B || _F);
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CONTEXT_B(_F || _F || _C);
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CONTEXT_B(_A || _F || _F);
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CONTEXT_B(_F || _B || _F);
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printf("\n");
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}
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void f3_B(int a, int b, int c, int d)
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/* AND and OR */
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{
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printf("f3_B(%d, %d, %d, %d)\n", a, b, c, d);
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CONTEXT_B(_A && _B || _C && _D);
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CONTEXT_B(_T && _T || _C && _D);
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CONTEXT_B(_A && _B || _T && _T);
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CONTEXT_B(_T && _B || _C && _D);
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CONTEXT_B(_A && _T || _C && _D);
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CONTEXT_B(_A && _B || _T && _D);
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CONTEXT_B(_A && _B || _C && _T);
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CONTEXT_B(_F && _B || _C && _D);
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CONTEXT_B(_A && _F || _C && _D);
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CONTEXT_B(_A && _B || _F && _D);
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CONTEXT_B(_A && _B || _C && _F);
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printf("\n");
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}
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void f4_B(int a, int b, int c, int d)
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/* AND as top-level expression inside OR context */
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{
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printf("f4_B(%d, %d, %d, %d)\n", a, b, c, d);
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CONTEXT_B((_A && _B) || (_C && _D));
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CONTEXT_B((_T && _T) || (_C && _D));
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CONTEXT_B((_A && _B) || (_T && _T));
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CONTEXT_B((_T && _B) || (_C && _D));
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CONTEXT_B((_A && _T) || (_C && _D));
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CONTEXT_B((_A && _B) || (_T && _D));
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CONTEXT_B((_A && _B) || (_C && _T));
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CONTEXT_B((_F && _B) || (_C && _D));
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CONTEXT_B((_A && _F) || (_C && _D));
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CONTEXT_B((_A && _B) || (_F && _D));
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CONTEXT_B((_A && _B) || (_C && _F));
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printf("\n");
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}
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void f5_B(int a, int b, int c, int d)
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/* OR as top-level expression inside AND context */
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{
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printf("f5_B(%d, %d, %d, %d)\n", a, b, c, d);
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CONTEXT_B((_A || _B) && (_C || _D));
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CONTEXT_B((_F || _F) && (_C || _D));
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CONTEXT_B((_A || _B) && (_F || _F));
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CONTEXT_B((_T || _B) && (_C || _D));
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CONTEXT_B((_A || _T) && (_C || _D));
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CONTEXT_B((_A || _B) && (_T || _D));
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CONTEXT_B((_A || _B) && (_C || _T));
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CONTEXT_B((_F || _B) && (_C || _D));
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CONTEXT_B((_A || _F) && (_C || _D));
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CONTEXT_B((_A || _B) && (_F || _D));
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CONTEXT_B((_A || _B) && (_C || _F));
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printf("\n");
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}
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int main()
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{
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f0();
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f1(0, 0, 0);
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f2(0, 0, 0);
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f3(0, 0, 0, 0);
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f4(0, 0, 0, 0);
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f5(0, 0, 0, 0);
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f1(1, 1, 1);
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f2(1, 1, 1);
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f3(1, 1, 1, 1);
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f4(1, 1, 1, 1);
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f5(1, 1, 1, 1);
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f3(1, 0, 1, 0);
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f4(1, 0, 1, 0);
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f5(1, 0, 1, 0);
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f3(0, 1, 0, 1);
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f4(0, 1, 0, 1);
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f5(0, 1, 0, 1);
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f0_B();
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f1_B(0, 0, 0);
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f2_B(0, 0, 0);
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f3_B(0, 0, 0, 0);
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f4_B(0, 0, 0, 0);
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f5_B(0, 0, 0, 0);
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f1_B(1, 1, 1);
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f2_B(1, 1, 1);
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f3_B(1, 1, 1, 1);
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f4_B(1, 1, 1, 1);
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f5_B(1, 1, 1, 1);
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f3_B(1, 0, 1, 0);
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f4_B(1, 0, 1, 0);
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f5_B(1, 0, 1, 0);
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f3_B(0, 1, 0, 1);
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f4_B(0, 1, 0, 1);
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f5_B(0, 1, 0, 1);
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return 0;
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}
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