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Test to demonstrate availability of floating point constants, document the possibility.

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bbbradsmith 2023-05-03 00:12:36 -04:00
parent 7ff74b2c47
commit e3887d7ead
2 changed files with 17 additions and 0 deletions
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3
doc/cc65.sgml
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@ -805,6 +805,9 @@ and the one defined by the ISO standard:
<itemize>
<item> The datatypes "float" and "double" are not available.
Floating point constants may be used, though they will have to be
converted and stored into integer values.
Floating point arithmetic expressions are not supported.
<p>
<item> C Functions may not return structs (or unions), and structs may not
be passed as parameters by value. However, struct assignment *is*

14
test/val/float-const-convert.c Normal file
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@ -0,0 +1,14 @@
/* Demonstrates that floating point constants are allowed in a limited way.
Value will be converted to an int, with a warning if precision is lost. */
int a = 3.0;
int b = 23.1;
int c = -5.0;
int main(void)
{
if (a != 3) return 1;
if (b != 23) return 2;
if (c != -5) return 3;
return 0;
}