78K datasheet(107/523 Pages) NEC

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CHAPTER 6 CONTROL STRUCTURES OF C LANGUAGE

User’s Manual U15556EJ1V0UM

107

A description example of these statements is shown below.

[Description example]

#define SIZE

#define TRUE

#define FALSE 0

extern void putchar(char) ;

extern void lprintf(char*, int) ;

char

mark [SIZE+1];

void main (void) {

int i, prime, k, count;

count = 0 ;

for (i = 0

;

i <= SIZE

;

i++)

............................ /* for .............. Iteration statement */

mark [i] = TRUE ;

for (i = 0

;

i <= SIZE

;

i++)

{....................... / * for ............. Iteration statement */

(mark [i])

{

............................................ / * if ............... Selection statement */

prime = i + i + 3;

lprintf (“%d”

, prime);

if ((count%8)

== 0)

putchar ('\n');

for (k = i + prime

;

k <= SIZE

;

k += prime)

/ * if ............... Selection statement * /

mark [k] = FALSE;

}

lprintf (“Total

%d\n”, count);

loop1;

............................................ / * loop1: ....... Labeled statement * /

goto loop1;

............................................ / * goto .......... Branch statement * /

}

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