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Fix MSVC build, no C99 so no round().

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(Doesn't use SGMisc<T>::round, since Nasal is pure C)
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James Turner
2013-10-09 11:52:54 +02:00
parent 23140e3bf7
commit d148bdedcd
1 changed files with 6 additions and 1 deletions
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7
simgear/nasal/mathlib.c
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@@ -159,8 +159,13 @@ static naRef f_round(naContext c, naRef me, int argc, naRef* args)
naRuntimeError(c, "non numeric arguments to round()"); naRuntimeError(c, "non numeric arguments to round()");
if (naIsNil(b)) if (naIsNil(b))
b.num = 1.0; b.num = 1.0;
#ifdef _MSC_VER // MSVC is not C99-compatible, no round() in math.h
double y = a.num / b.num;
double x = floor(y + 0.5);
#else
double x = round(a.num / b.num); double x = round(a.num / b.num);
#endif
a.num = x * b.num; a.num = x * b.num;
return VALIDATE(a); return VALIDATE(a);