Use correct int return type for stream input operations

This makes it safe to compare results to -1 to indicate EOF,
regardless of whether char is considered signed or unsigned;
and so eliminates compiler warnings on platforms such as ARM.

Fixes bug #2058.

2 files changed, 19 insertions, 0 deletions

diff --git a/test/regress/2058_1.test b/test/regress/2058_1.test
new file mode 100644
index 00000000..06043007
--- /dev/null
+++ b/test/regress/2058_1.test
@@ -0,0 +1,8 @@
+2021/1/2 Test
+    A  $1.00
+    B
+
+test -p 'last %^@' bal -> 1
+__ERROR__
+Error: Invalid char '%'
+end test
diff --git a/test/regress/2058_2.test b/test/regress/2058_2.test
new file mode 100644
index 00000000..3c6c2a7e
--- /dev/null
+++ b/test/regress/2058_2.test
@@ -0,0 +1,11 @@
+2021/1/2 Test
+    A  $1.00
+    B
+
+test --limit 'date>=[2020/12/31' register A -> 1
+__ERROR__
+While parsing value expression:
+  (date>=[2020/12/31)&((account =~ /A/))
+
+Error: Missing ']'
+end test