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Function std.math.rndtonl
Returns x rounded to a long value using the FE_TONEAREST rounding mode.
If the integer value of x is
greater than long.max, the result is
indeterminate.
Prototype
extern(C) real rndtonl( real x );
Authors
Walter Bright, Don Clugston, Conversion of CEPHES math library to D by Iain Buclaw