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/* n_21.c: Tokenization (No preprocessing tokens are merged implicitly). */
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#include "defs.h"
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main( void)
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{
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int a = 1, x = 2, y = -3;
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fputs( "started\n", stderr);
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/* 21.1: */
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#define MINUS -
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assert( -MINUS-a == -1);
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/* 21.2: */
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#define sub( a, b) a-b /* '(a)-(b)' is better */
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#define Y -y /* '(-y)' is better */
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/* x- -y */
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assert( sub( x, Y) == -1);
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fputs( "success\n", stderr);
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return 0;
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}
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