File chromium-84-fix-decltype.patch of Package chromium.13379

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File chromium-84-fix-decltype.patch of Package chromium.13379

From df413313083a9dabdc573545aaf70343aa0830ca Mon Sep 17 00:00:00 2001
From: Stephan Hartmann <stha09@googlemail.com>
Date: Wed, 27 May 2020 17:03:03 +0000
Subject: [PATCH] GCC: fix decltype to get a valid function pointer

The decltype(<func>) passed as template parameter to
CBBFunctionToVector does not return a function pointer
and GCC complains like this:

../../device/fido/virtual_fido_device.cc:104:68: error:
 'int(struct cbb_st*, const struct evp_pkey_st*)' is not a valid type
 for a template non-type parameter
  104 |                         EVP_marshal_private_key>(pkey_.get());
      |                                                           ^

Fix this by passing decltype(&<func>).

Bug: 819294
Change-Id: I8114c3d75c9865779d58c0b6a6c48e6affd3175b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2217414
Reviewed-by: Adam Langley <agl@chromium.org>
Commit-Queue: Adam Langley <agl@chromium.org>
Cr-Commit-Position: refs/heads/master@{#772283}
---

diff --git a/device/fido/virtual_fido_device.cc b/device/fido/virtual_fido_device.cc
index 0256c6a..72423d3 100644
--- a/device/fido/virtual_fido_device.cc
+++ b/device/fido/virtual_fido_device.cc
@@ -51,7 +51,7 @@
 
 // CBBFunctionToVector converts a BoringSSL function that writes to a CBB to one
 // that returns a std::vector. Invoke for a function, f, with:
-//   CBBFunctionToVector<decltype(f), f>(args, to, f);
+//   CBBFunctionToVector<decltype(&f), f>(args, to, f);
 template <typename F, F function, typename... Args>
 std::vector<uint8_t> CBBFunctionToVector(Args&&... args) {
   uint8_t* der = nullptr;
@@ -102,7 +102,7 @@
   }
 
   std::vector<uint8_t> GetPKCS8PrivateKey() const override {
-    return CBBFunctionToVector<decltype(EVP_marshal_private_key),
+    return CBBFunctionToVector<decltype(&EVP_marshal_private_key),
                                EVP_marshal_private_key>(pkey_.get());
   }
 
@@ -122,7 +122,7 @@
 
   std::vector<uint8_t> GetX962PublicKey() const override {
     const EC_KEY* ec_key = EVP_PKEY_get0_EC_KEY(pkey_.get());
-    return CBBFunctionToVector<decltype(EC_POINT_point2cbb),
+    return CBBFunctionToVector<decltype(&EC_POINT_point2cbb),
                                EC_POINT_point2cbb>(
         EC_KEY_get0_group(ec_key), EC_KEY_get0_public_key(ec_key),
         POINT_CONVERSION_UNCOMPRESSED, /*ctx=*/nullptr);
@@ -172,7 +172,7 @@
         cbor::Writer::Write(cbor::Value(std::move(map))));
 
     std::vector<uint8_t> der_bytes(
-        CBBFunctionToVector<decltype(EVP_marshal_public_key),
+        CBBFunctionToVector<decltype(&EVP_marshal_public_key),
                             EVP_marshal_public_key>(pkey_.get()));
 
     return std::make_unique<PublicKey>(

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File chromium-84-fix-decltype.patch of Package chromium.13379

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