36 lines
617 B
C
36 lines
617 B
C
#include <stdio.h>
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#include <math.h>
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struct Point /* Define a struture called Point */
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{
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int x; /* The X data */
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int y; /* The Y data */
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};
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struct Line
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{
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struct Point p1;
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struct Point p2;
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float length;
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};
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void LineLength( struct Line* line);
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int main()
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{
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struct Line line;
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line.p1.x = 0;
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line.p1.y = 0;
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line.p2.x = 3;
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line.p2.y = 4;
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LineLength( &line );
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printf( "Line length = %.3f\n", line.length);
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}
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void LineLength( struct Line* line)
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{
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float dx = line->p2.x - line->p1.x;
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float dy = line->p2.y - line->p1.y;
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line->length = sqrt( dx*dx + dy*dy );
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} |