34 lines
833 B
C
34 lines
833 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#if defined( _M_I86 )
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#define alloc( x, y ) sbrk( x ); y = sbrk( 0 );
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#else
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#define alloc( x, y ) y = sbrk( x );
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#endif
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void main()
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{
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void *brk;
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#if defined( _M_I86 )
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alloc( 0x0000, brk );
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/* calling printf will cause an allocation */
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printf( "Original break value %p\n", brk );
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printf( "Current amblksiz value %x\n", _amblksiz );
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alloc( 0x0000, brk );
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printf( "New break value after printf \t\t%p\n", brk );
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#endif
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alloc( 0x3100, brk );
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printf( "New break value after sbrk( 0x3100 ) \t%p\n",
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brk );
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alloc( 0x0200, brk );
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printf( "New break value after sbrk( 0x0200 ) \t%p\n",
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brk );
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#if defined( _M_I86 )
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alloc( -0x0100, brk );
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printf( "New break value after sbrk( -0x0100 ) \t%p\n",
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brk );
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#endif
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}
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