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Hi Buck, > C: > printf("%f\n", pow(16,15)); > 1152921504606847000.000000 > printf("%f\n", (pow(16,14)*16)); > 1152921504606847000.000000 This code doesn't do quite the same thing, because it doesn't convert the result to a packed field. Unfortunately, I have NO CLUE how you work with packed fields in C, so I'll do the exponentiation in C and then call an RPG program to convert it to packed: #include <stdio.h> #include <math.h> #pragma linkage (MYRPG,OS) void MYRPG(double *); int main(int argc, char **argv) { double z; z = pow(16, 15); printf("%.0f\n", z); MYRPG(&z); return 0; } D MYRPG PR ExtPgm('MYRPG') D input 8F D MYRPG PI D input 8F D packed s 30P 0 /free packed = input; dsply '' '' packed; *inlr = *on; /end-free The result of the printf is 1152921504606847000 as it was in your example, but the result of the DSPLY is 1152921504606846980 Which is very interesting, don't you think?
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