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HEAD
added no-header option to rrd_dump
[rrdtool.git]
/
src
/
rrd_nan_inf.c
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int done_nan = 0;
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int done_inf = 0;
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double dnan;
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double dinf;
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#if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
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#include <math.h>
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#include "rrd.h"
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#define NAN_FUNC (double)fmod(0.0,0.0)
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#define INF_FUNC (double)fabs((double)log(0.0))
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#else
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#include "rrd.h"
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#define NAN_FUNC (double)(0.0/0.0)
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#define INF_FUNC (double)(1.0/0.0)
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#endif
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double set_to_DNAN(
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void)
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{
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if (!done_nan) {
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dnan = NAN_FUNC;
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done_nan = 1;
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}
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return dnan;
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}
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double set_to_DINF(
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void)
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{
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if (!done_inf) {
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dinf = INF_FUNC;
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done_inf = 1;
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}
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return dinf;
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}