ieee2float - Convert floating-point number from IEEE format to /390 format (BS2000)

Syntax	#include <ieee_390.h> float ieee2float (float num);
Description	ieee2float() converts a 4-byte floating-point number num in /390 format to IEEE format and returns it as the result. Neither overflow nor underflow can occur, but up to three bit positions can be lost.
Return val.	4-byte floating-point number in /390 format (in the event of success). 0.0 if NaN or inf is passed as a parameter. The global variable float_exceptions_flag contains information for the event of unsuccessful conversion and is defined as follows: extern int float_exception_flags; enum { float_flag_inexact = 1, float_flag_divbyzero = 2, float_flag_underflow = 4, float_flag_overflow = 8, float_flag_invalid = 16 }; If bit positions are lost during conversion and the result thus becomes inaccurate, float_flag_invalid is set.
See also	float2ieee(), double2ieee(), ieee2double().