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Diffstat (limited to 'doc/manual/src/language/builtin-constants.md')
| -rw-r--r-- | doc/manual/src/language/builtin-constants.md | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/doc/manual/src/language/builtin-constants.md b/doc/manual/src/language/builtin-constants.md deleted file mode 100644 index c6bc9b74c..000000000 --- a/doc/manual/src/language/builtin-constants.md +++ /dev/null @@ -1,19 +0,0 @@ -# Built-in Constants - -These constants are built into the Nix language evaluator: - -- [`builtins`]{#builtins-builtins} (attribute set) - - Contains all the [built-in functions](./builtins.md) and values, in order to avoid polluting the global scope. - - Since built-in functions were added over time, [testing for attributes](./operators.md#has-attribute) in `builtins` can be used for graceful fallback on older Nix installations: - - ```nix - if builtins ? getEnv then builtins.getEnv "PATH" else "" - ``` - -- [`builtins.currentSystem`]{#builtins-currentSystem} (string) - - The built-in value `currentSystem` evaluates to the Nix platform - identifier for the Nix installation on which the expression is being - evaluated, such as `"i686-linux"` or `"x86_64-darwin"`. |