datatype: Fix boolean type on Big Endian

Pass a reference to a variable with correct size when creating the
expression, otherwise mpz_import_data() will read only the always zero
upper byte on Big Endian hosts.

Fixes: afb6a8e66a111 ("datatype: clamp boolean value to 0 and 1")
Signed-off-by: Phil Sutter <phil@nwl.cc>

diff --git a/src/datatype.c b/src/datatype.c
index 956ce2ac0a97bc38d5f302830adc7b6635d3d198..7effeb33208e766c04728f64576f21c1e9c73247 100644 (file)
--- a/src/datatype.c
+++ b/src/datatype.c
@@ -1559,7 +1559,7 @@ static struct error_record *boolean_type_parse(struct parse_ctx *ctx,
                                               struct expr **res)
 {
        struct error_record *erec;
-       int num;
+       uint8_t num;
 
        erec = integer_type_parse(ctx, sym, res);
        if (erec)