1 files changed, 76 insertions, 0 deletions
diff --git a/gcc/testsuite/gdc.test/compilable/test21177.d b/gcc/testsuite/gdc.test/compilable/test21177.d
new file mode 100644
index 00000000000..b3b613bc0e9
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test21177.d
@@ -0,0 +1,76 @@
+// https://issues.dlang.org/show_bug.cgi?id=21177
+/*
+DISABLED: win
+TEST_OUTPUT:
+---
+compilable/test21177.d(103): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(150): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(151): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(152): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(153): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(200): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(203): Deprecation: format specifier `"%m"` is invalid
+compilable/test21177.d(204): Deprecation: format specifier `"%m"` is invalid
+compilable/test21177.d(205): Deprecation: argument `c` for format specification `"%a"` must be `float*`, not `char*`
+compilable/test21177.d(206): Deprecation: argument `c` for format specification `"%a"` must be `float*`, not `char*`
+---
+*/
+
+import core.stdc.stdio;
+import core.stdc.string;
+import core.stdc.stdlib;
+
+void main()
+{
+    version (CRuntime_Glibc)
+    {
+        #line 100
+        printf("%m this is a string in errno");
+        printf("%s %m", "str".ptr, 2);
+        printf("%a", 2.);
+        printf("%m %m %s");
+        printf("%*m");
+
+        char* a, b;
+        sscanf("salut poilu", "%a %m", a, b);
+        assert(!strcmp(a, b));
+        free(a);
+        free(b);
+
+        char* t, p;
+        sscanf("Tomate Patate", "%ms %as", t, p);
+        free(t);
+        free(p);
+
+        #line 150
+        sscanf("150", "%m");
+        sscanf("151", "%ms");
+        sscanf("152", "%a");
+        sscanf("153", "%as");
+
+        pragma(msg, "compilable/test21177.d(200): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(203): Deprecation: format specifier `\"%m\"` is invalid");
+        pragma(msg, "compilable/test21177.d(204): Deprecation: format specifier `\"%m\"` is invalid");
+        pragma(msg, "compilable/test21177.d(205): Deprecation: argument `c` for format specification `\"%a\"` must be `float*`, not `char*`");
+        pragma(msg, "compilable/test21177.d(206): Deprecation: argument `c` for format specification `\"%a\"` must be `float*`, not `char*`");
+    }
+    else
+    {
+        // fake it
+        pragma(msg, "compilable/test21177.d(103): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(150): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(151): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(152): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(153): Deprecation: more format specifiers than 0 arguments");
+
+        #line 200
+        printf("%m");
+
+        char* c;
+        sscanf("204", "%m", c);
+        sscanf("205", "%ms", c);
+        sscanf("206", "%a", c);
+        sscanf("207", "%as", c);
+
+    }
+}