Module Name: src
Committed By: rillig
Date: Sun Jun 27 19:59:23 UTC 2021
Modified Files:
src/tests/usr.bin/xlint/lint1: c11_generic_expression.c
c11_generic_expression.exp
Log Message:
tests/lint: add test for _Generic with incompatible return types
To generate a diff of this commit:
cvs rdiff -u -r1.1 -r1.2 \
src/tests/usr.bin/xlint/lint1/c11_generic_expression.c \
src/tests/usr.bin/xlint/lint1/c11_generic_expression.exp
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/tests/usr.bin/xlint/lint1/c11_generic_expression.c
diff -u src/tests/usr.bin/xlint/lint1/c11_generic_expression.c:1.1 src/tests/usr.bin/xlint/lint1/c11_generic_expression.c:1.2
--- src/tests/usr.bin/xlint/lint1/c11_generic_expression.c:1.1 Sun Jun 27 18:48:45 2021
+++ src/tests/usr.bin/xlint/lint1/c11_generic_expression.c Sun Jun 27 19:59:23 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: c11_generic_expression.c,v 1.1 2021/06/27 18:48:45 rillig Exp $ */
+/* $NetBSD: c11_generic_expression.c,v 1.2 2021/06/27 19:59:23 rillig Exp $ */
# 3 "c11_generic_expression.c"
/*
@@ -18,7 +18,7 @@
* generic-association. This is a compile-time error.
*/
const char *
-classify_integer_without_default(double var)
+classify_type_without_default(double var)
{
return _Generic(var,
long double: "long double",
@@ -33,7 +33,7 @@ classify_integer_without_default(double
* In this case, the 'default' expression is selected.
*/
const char *
-classify_integer_with_default(double var)
+classify_type_with_default(double var)
{
return _Generic(var,
long double: "long double",
@@ -44,3 +44,16 @@ classify_integer_with_default(double var
/* expect-8: argument 'var' unused */
/* expect-2: type mismatch (pointer to const char) and (double) *//* FIXME */
}
+
+/*
+ * The type of a _Generic expression is the one from the selected association.
+ */
+const char *
+classify_char(char c)
+{
+ return _Generic(c,
+ char: "yes",
+ default: 0.0
+ );
+ /* expect-1: (pointer to const char) and integer (char) [183] */
+}
Index: src/tests/usr.bin/xlint/lint1/c11_generic_expression.exp
diff -u src/tests/usr.bin/xlint/lint1/c11_generic_expression.exp:1.1 src/tests/usr.bin/xlint/lint1/c11_generic_expression.exp:1.2
--- src/tests/usr.bin/xlint/lint1/c11_generic_expression.exp:1.1 Sun Jun 27 18:48:45 2021
+++ src/tests/usr.bin/xlint/lint1/c11_generic_expression.exp Sun Jun 27 19:59:23 2021
@@ -1,4 +1,5 @@
c11_generic_expression.c(27): error: return value type mismatch (pointer to const char) and (double) [211]
-c11_generic_expression.c(21): warning: argument 'var' unused in function 'classify_integer_without_default' [231]
+c11_generic_expression.c(21): warning: argument 'var' unused in function 'classify_type_without_default' [231]
c11_generic_expression.c(43): error: return value type mismatch (pointer to const char) and (double) [211]
-c11_generic_expression.c(36): warning: argument 'var' unused in function 'classify_integer_with_default' [231]
+c11_generic_expression.c(36): warning: argument 'var' unused in function 'classify_type_with_default' [231]
+c11_generic_expression.c(57): warning: illegal combination of pointer (pointer to const char) and integer (char) [183]
