Fix char array initialiation through init list

Author: lucic71

cpp2rust/converter/converter.cpp

@@ -2758,6 +2758,14 @@ bool Converter::VisitInitListExpr(clang::InitListExpr *expr) {
       StrCat(token::kComma);
     }
   } else {
+    if (expr->getNumInits() == 1 && qual_type->isArrayType() &&
+        qual_type->getArrayElementTypeNoTypeQual()->isCharType() &&
+        clang::isa<clang::StringLiteral>(
+            expr->getInit(0)->IgnoreParenImpCasts())) {
+      auto *init = expr->getInit(0);
+      ConvertVarInit(init->getType(), init);
+      return false;
+    }
     PushBracket bracket(*this);
     for (auto *init : expr->inits()) {
       ConvertVarInit(init->getType(), init);

tests/unit/string_literals.cpp

@@ -22,5 +22,9 @@ int main() {
   foo_const("");
   foo_const(immutable_empty);
   foo_const(immutable_empty_arr);
+
+  const char inited_through_init_list[] = { "papanasi cu smantana" };
+  foo_const(inited_through_init_list);
+
   return 0;
 }

tests/unit/string_literals_c.c

@@ -31,5 +31,9 @@ int main() {
   foo_const(immutable_empty);
   foo_const(mutable_empty_arr);
   foo_const(immutable_empty_arr);
+
+  const char inited_through_init_list[] = { "papanasi cu smantana" };
+  foo_const(inited_through_init_list);
+
   return 0;
 }