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.TH "BSON_DECIMAL128_T" "3" "Apr 02, 2024" "1.26.2" "libbson"
.sp
BSON Decimal128 Abstraction
.SH SYNOPSIS
.INDENT 0.0
.INDENT 3.5
.sp
.EX
#include <bson/bson.h>

#define BSON_DECIMAL128_STRING 43
#define BSON_DECIMAL128_INF \(dqInfinity\(dq
#define BSON_DECIMAL128_NAN \(dqNaN\(dq

typedef struct {
#if BSON_BYTE_ORDER == BSON_LITTLE_ENDIAN
   uint64_t low;
   uint64_t high;
#elif BSON_BYTE_ORDER == BSON_BIG_ENDIAN
   uint64_t high;
   uint64_t low;
#endif
} bson_decimal128_t;
.EE
.UNINDENT
.UNINDENT
.SH DESCRIPTION
.sp
The \fI\%bson_decimal128_t\fP structure represents the IEEE\-754 Decimal128
data type. The type \fBbson_decimal128_t\fP is an aggregate that contains two
\fBuint64_t\fPs, named \fBhigh\fP and \fBlow\fP\&. The declaration and layout order
between them depends on the endian order of the target platform: \fBlow\fP will
always correspond to the low\-order bits of the Decimal128 object, while \fBhigh\fP
corresponds to the high\-order bits. The \fBbson_decimal128_t\fP always has a size
of sixteen (\fB16\fP), and can be bit\-cast to/from a \fB_Decimal128\fP\&.
.SH EXAMPLE
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.INDENT 3.5
.sp
.EX
#include <bson/bson.h>
#include <stdio.h>

int
main (int argc, char *argv[])
{
   char string[BSON_DECIMAL128_STRING];
   bson_decimal128_t decimal128;

   bson_decimal128_from_string (\(dq100.00\(dq, &decimal128);
   bson_decimal128_to_string (&decimal128, string);
   printf (\(dqDecimal128 value: %s\en\(dq, string);

   return 0;
}
.EE
.UNINDENT
.UNINDENT
.SH AUTHOR
MongoDB, Inc
.SH COPYRIGHT
2017-present, MongoDB, Inc
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