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Check for division by/modulo by zero when parsing the /= and %= operators.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3937 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz
2009-02-17 21:09:59 +00:00
parent c4dac550a8
commit 4dd9c523e7
1 changed files with 15 additions and 7 deletions
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8
src/cc65/expr.c
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@@ -2843,6 +2843,14 @@ static void opeq (const GenDesc* Gen, ExprDesc* Expr)
} else if (Gen->Func == g_sub) { } else if (Gen->Func == g_sub) {
g_dec (flags | CF_CONST, Expr2.IVal); g_dec (flags | CF_CONST, Expr2.IVal);
} else { } else {
if (Expr2.IVal == 0) {
/* Check for div by zero/mod by zero */
if (Gen->Func == g_div) {
Error ("Division by zero");
} else if (Gen->Func == g_mod) {
Error ("Modulo operation with zero");
}
}
Gen->Func (flags | CF_CONST, Expr2.IVal); Gen->Func (flags | CF_CONST, Expr2.IVal);
} }
} else { } else {