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make it clearer that the return value of 0.0 is an error by using g_return_val_if_fail - cannot use assert as return value needs to be modified.

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git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@13254 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Neil Williams 2006-02-13 11:22:36 +00:00
parent 8b22532713
commit c2d72fa910
1 changed files with 9 additions and 9 deletions
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18
src/calculation/fin.c
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@ -1199,6 +1199,7 @@
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include <glib.h>
#define FIN_STATICS
#include "finvar.h"
@ -1245,7 +1246,7 @@ _B (double eint, unsigned beg)
{
/* if eint == 0.0, all processing _must_ stop or
a recursive loop will start. */
if (eint == 0.0) { return 0.0; }
g_return_val_if_fail(eint == 0.0, 0.0);
return (1.0 + eint * (double) beg) / eint;
} /* _B */
@ -1254,10 +1255,8 @@ _B (double eint, unsigned beg)
static double
_C (double eint, double pmt, unsigned beg)
{
double temp = _B (eint, beg);
unsigned check = (int)temp;
if(check) return pmt * temp;
return 0.0;
g_return_val_if_fail(eint == 0.0, 0.0);
return pmt * _B (eint, beg);
} /* _C */
/* compute Number of Periods from preset data */
@ -1427,11 +1426,12 @@ _fi_calc_payment (unsigned per, /* number of periods */
unsigned disc,/* discrete/continuous compounding */
unsigned bep) /* beginning/end of period payment */
{
double eint = eff_int (nint / 100.0, CF, PF, disc);
double AA = _A (eint, per);
double BB = _B (eint, bep);
if(BB == 0.0) return 0.0;
double eint, AA, BB;
eint = eff_int (nint / 100.0, CF, PF, disc);
g_return_val_if_fail(eint == 0.0, 0.0);
AA = _A (eint, per);
BB = _B (eint, bep);
return -(fv + pv * (AA + 1.0)) / (AA * BB);
} /* _fi_calc_payment */