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Fix MSVC errors in image test and add image_check doc anchor

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Move the raw string literal out of the CHECK macro (MSVC preprocessor),
cast 64-bit header fields to std::size_t (C4244 on 32-bit), and give the
image_check section in load.md a real anchor for the mkdocs strict build.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann committed 2026-10-08 16:22:58 +02:00
1 parent c7138cc9b4
commit 818ec541d9
2 files changed
+7 -6
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docs/mkdocs/docs/api/basic_json_document/load.md
+1 -1
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@@ -91,7 +91,7 @@ additionally linear in the combined length of the text and the decoded strings;
## Notes
**The `image_check` modes.**
### `image_check` { #image_check }
```cpp
using image_check = detail::view::image_check;
tests/src/unit-json_view_image.cpp
+6 -5
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@@ -438,7 +438,7 @@ TEST_CASE("json_view images: errors")
// the NULs after the text and the decoded strings
bad = image;
bad[text_at(image) + header_field(image, 16)] = 'x';
bad[text_at(image) + static_cast<std::size_t>(header_field(image, 16))] = 'x';
CHECK(load_result(bad, image_check::none) == prefix + "sizes out of range");
bad = image;
bad.back() = 'x';
@@ -534,8 +534,8 @@ TEST_CASE("json_view images: check")
SECTION("bounds")
{
const std::size_t text_size = header_field(image, 16);
const std::size_t arena_size = header_field(image, 24);
const std::size_t text_size = static_cast<std::size_t>(header_field(image, 16));
const std::size_t arena_size = static_cast<std::size_t>(header_field(image, 24));
rejected(corrupted(image, 1, [&](node & n)
{
n.off = static_cast<std::uint32_t>(text_size + 1);
@@ -624,7 +624,8 @@ TEST_CASE("json_view images: check")
n.kind = 2; // {} as []: fine
});
CHECK(load_result(as_array, image_check::full).empty());
CHECK(json_document::load(as_array).root().dump() == R"({"s":"x\"y","i":-12,"u":7,"f":1.5e+300,"b":true,"n":null,"a":["t",[]]})");
const std::string expected_dump = R"({"s":"x\"y","i":-12,"u":7,"f":1.5e+300,"b":true,"n":null,"a":["t",[]]})";
CHECK(json_document::load(as_array).root().dump() == expected_dump);
}
SECTION("strings")
@@ -641,7 +642,7 @@ TEST_CASE("json_view images: check")
// invalid UTF-8 in a decoded string
b = image;
const node s2 = node_at(image, 2);
b[t + header_field(image, 16) + 1 + s2.off] = 0xFF;
b[t + static_cast<std::size_t>(header_field(image, 16)) + 1 + s2.off] = 0xFF;
rejected(b, false);
}