7bbaa4283d
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36 lines
634 B
C++
36 lines
634 B
C++
// A simple program that builds a sqrt table
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#include <stdio.h>
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#include <math.h>
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int main (int argc, char *argv[])
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{
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int i;
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double result;
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// make sure we have enough arguments
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if (argc < 2)
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{
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return 1;
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}
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// open the output file
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FILE *fout = fopen(argv[1],"w");
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if (!fout)
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{
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return 1;
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}
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// create a source file with a table of square roots
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fprintf(fout,"double sqrtTable[] = {\n");
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for (i = 0; i < 10; ++i)
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{
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result = sqrt(static_cast<double>(i));
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fprintf(fout,"%g,\n",result);
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}
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// close the table with a zero
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fprintf(fout,"0};\n");
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fclose(fout);
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return 0;
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}
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