31 lines
844 B
C
31 lines
844 B
C
#include <stdio.h>
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int main()
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{
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double inf = 1/0.0;
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double minus_inf = -1/0.0;
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double minus_zero = -1/ inf ;
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double nan = 0.0/0.0;
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printf("positive infinity: %f\n",inf);
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printf("negative infinity: %f\n",minus_inf);
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printf("negative zero: %f\n",minus_zero);
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printf("not a number: %f\n",nan);
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/* some arithmetic */
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printf("+inf + 2.0 = %f\n",inf + 2.0);
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printf("+inf - 10.1 = %f\n",inf - 10.1);
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printf("+inf + -inf = %f\n",inf + minus_inf);
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printf("0.0 * +inf = %f\n",0.0 * inf);
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printf("1.0/-0.0 = %f\n",1.0/minus_zero);
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printf("NaN + 1.0 = %f\n",nan + 1.0);
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printf("NaN + NaN = %f\n",nan + nan);
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/* some comparisons */
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printf("NaN == NaN = %s\n",nan == nan ? "true" : "false");
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printf("0.0 == -0.0 = %s\n",0.0 == minus_zero ? "true" : "false");
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return 0;
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}
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