60 lines
1.3 KiB
Markdown
60 lines
1.3 KiB
Markdown
# NLOHMANN_JSON_NAMESPACE_NO_VERSION
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```cpp
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#define NLOHMANN_JSON_NAMESPACE_NO_VERSION /* value */
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```
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If defined to `1`, the version component is omitted from the inline namespace. See
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[`nlohmann` Namespace](../../features/namespace.md#structure) for details.
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## Default definition
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The default value is `0`.
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```cpp
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#define NLOHMANN_JSON_NAMESPACE_NO_VERSION 0
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```
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When the macro is not defined, the library will define it to its default value.
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## Examples
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??? example
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The example shows how to use `NLOHMANN_JSON_NAMESPACE_NO_VERSION` to disable the version component of the inline
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namespace.
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```cpp
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#include <iostream>
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#define NLOHMANN_JSON_NAMESPACE_NO_VERSION 1
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#include <nlohmann/json.hpp>
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// macro needed to output the NLOHMANN_JSON_NAMESPACE as string literal
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#define Q(x) #x
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#define QUOTE(x) Q(x)
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int main()
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{
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std::cout << QUOTE(NLOHMANN_JSON_NAMESPACE) << std::endl;
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}
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```
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Output:
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```json
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nlohmann::json_abi
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```
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## See also
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- [`nlohmann` Namespace](../../features/namespace.md)
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- [`NLOHMANN_JSON_NAMESPACE`](nlohmann_json_namespace.md)
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- [`NLOHMANN_JSON_NAMESPACE_BEGIN, NLOHMANN_JSON_NAMESPACE_END`](nlohmann_json_namespace_begin.md)
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## Version history
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- Added in version 3.11.2.
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