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// file : xsde/cxx/serializer/non-validating/time-zone.cxx
// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#include <stdio.h> // sprintf/snprintf
#include <xsde/cxx/config.hxx>
#include <xsde/cxx/serializer/non-validating/time-zone.hxx>
namespace xsde
{
namespace cxx
{
namespace serializer
{
namespace non_validating
{
namespace bits
{
int
serialize_time_zone (char* s, const time_zone& z)
{
// time-zone := Z|(+|-)HH:MM
//
short h = z.zone_hours ();
short m = z.zone_minutes ();
if (h == 0 && m == 0)
{
*s = 'Z';
return 1;
}
else
{
const char* fmt = "+%.2u:%.2u";
if (h < 0 || m < 0)
{
fmt = "-%.2u:%.2u";
h = -h;
m = -m;
}
if (h >= 0 && h <= 14 && m >= 0 && m <= 59)
{
#ifdef XSDE_SNPRINTF
int n = snprintf (s, 7, fmt, h, m);
#else
int n = sprintf (s, fmt, h, m);
#endif
if (n > 0 && n < 7)
return n;
}
return 0;
}
}
}
}
}
}
}
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