mirror of https://github.com/cc65/cc65.git
46 lines
974 B
C
46 lines
974 B
C
/* div-test.c
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**
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** This program tests the division and modulo operators
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** and the div() library function.
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*/
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#include <cc65.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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static bool test (int dividend, int divisor)
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{
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div_t result;
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result = div (dividend, divisor);
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printf ("%+d/%+d= %+d, %+d%%%+d= %+d, div()= %+d, %+d\n",
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dividend, divisor, dividend / divisor,
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dividend, divisor, dividend % divisor,
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result.quot, result.rem);
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return result.quot * divisor + result.rem != dividend;
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}
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int main (void)
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{
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bool t;
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printf ("\nTest of division and modulus operations:\n\n");
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t = test (+40, +3) ||
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test (+40, -3) ||
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test (-40, +3) ||
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test (-40, -3);
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if (t) {
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printf ("\nThe div() function made a wrong result!\n");
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}
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if (doesclrscrafterexit ()) {
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printf ("\nTap the Return key to quit. ");
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getchar ();
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}
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return (int)t;
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}
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