Hallo, dies ist ein Test.
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'\" te .\" Copyright (c) 1996, Oracle and/or its affiliates. All rights reserved. .TH decimal_to_floating 3C "1 Oct 2001" "Oracle Solaris 11.4" "Standard C Library Functions" .SH NAME decimal_to_floating, decimal_to_single, decimal_to_double, decimal_to_extended, decimal_to_quadruple \- convert decimal record to floating-point value .SH SYNOPSIS .LP .nf #include <floatingpoint.h> \fBvoid\fR \fBdecimal_to_single\fR(\fBsingle *\fR\fIpx\fR, \fBdecimal_mode *\fR\fIpm\fR, \fBdecimal_record *\fR\fIpd\fR, \fBfp_exception_field_type *\fR\fIps\fR); .fi .LP .nf \fBvoid\fR \fBdecimal_to_double\fR(\fBdouble *\fR\fIpx\fR, \fBdecimal_mode *\fR\fIpm\fR, \fBdecimal_record *\fR\fIpd\fR, \fBfp_exception_field_type *\fR\fIps\fR); .fi .LP .nf \fBvoid\fR \fBdecimal_to_extended\fR(\fBextended *\fR\fIpx\fR, \fBdecimal_mode *\fR\fIpm\fR, \fBdecimal_record *\fR\fIpd\fR, \fBfp_exception_field_type *\fR\fIps\fR); .fi .LP .nf \fBvoid\fR \fBdecimal_to_quadruple\fR(\fBquadruple *\fR\fIpx\fR, \fBdecimal_mode *\fR\fIpm\fR, \fBdecimal_record *\fR\fIpd\fR, \fBfp_exception_field_type *\fR\fIps\fR); .fi .SH DESCRIPTION .sp .LP These functions convert the decimal record *\fIpd\fR to a floating-point value *\fIpx\fR observing the rounding direction specified in *\fIpm\fR and setting *\fIps\fR to reflect any floating-point exceptions that occur. .sp .LP When \fIpd\fR->\fBfpclass\fR is \fBfp_zero\fR, \fBfp_infinity\fR, \fBfp_quiet\fR, or \fBfp_signaling\fR, *\fIpx\fR is set to zero, infinity, a quiet NaN, or a signaling NaN, respectively, with the sign indicated by \fIpd\fR->\fBsign\fR. All other fields in *\fIpd\fR are ignored. .sp .LP When \fIpd\fR->\fBfpclass\fR is \fBfp_normal\fR or \fBfp_subnormal\fR, \fIpd\fR->\fBds\fR must contain a null-terminated string of one or more ASCII digits representing a non-zero integer \fIm\fR, and \fIpd\fR->\fBndigits\fR must be equal to the length of this string. Then *\fIpx\fR is set to a correctly rounded approximation to .sp .in +2 .nf \(mi1**(pd->sign) * m * 10**(pd->exponent) .fi .in -2 .sp .sp .LP \fIpd\fR->\fBmore\fR can be set to a non-zero value to indicate that insignificant trailing digits were omitted from \fIpd\fR->\fBds\fR. In this case, \fIm\fR is replaced by \fIm\fR + \fIdelta\fR in the expression above, where \fIdelta\fR is some tiny positive fraction. .sp .LP The converted value is rounded according to the rounding direction specified in \fIpm\fR->\fBrd\fR. \fIpm\fR->\fBdf\fR and \fIpm\fR->\fBndigits\fR are not used. .sp .LP On exit, *\fIps\fR contains a bitwise OR of flags corresponding to any floating-point exceptions that occurred. The only possible exceptions are underflow, overflow, and inexact. If no floating-point exceptions occurred, *\fIps\fR is set to zero. .SH ATTRIBUTES .sp .LP See \fBattributes\fR(7) for descriptions of the following attributes: .sp .TS tab( ) box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) . ATTRIBUTE TYPE ATTRIBUTE VALUE _ MT-Level MT-Safe .TE .sp .SH SEE ALSO .sp .LP \fBscanf\fR(3C), \fBstring_to_decimal\fR(3C), \fBstrtod\fR(3C), \fBattributes\fR(7)