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# numpy.distutils.ccompiler_opt.CCompilerOpt

class numpy.distutils.ccompiler_opt.CCompilerOpt(ccompiler, cpu_baseline='min', cpu_dispatch='max', cache_path=None)

  A helper class for CCompiler aims to provide extra build options to effectively control of compiler optimizations that are directly related to CPU features.

  Attributes:
    conf_cache_factors
    conf_tmp_path

  Methods

  `cache_flush`() | Force update the cache.
  `cc_normalize_flags`(flags) | Remove the conflicts that caused due gathering implied features flags.
  `conf_features_partial`() | Return a dictionary of supported CPU features by the platform, and accumulate the rest of undefined options in `conf_features`, the returned dict has same rules and notes in class attribute `conf_features`, also its override any options that been set in 'conf_features'.
  `cpu_baseline_flags`() | Returns a list of final CPU baseline compiler flags
  `cpu_baseline_names`() | return a list of final CPU baseline feature names
  `cpu_dispatch_names`() | return a list of final CPU dispatch feature names
  `dist_compile`(sources, flags[, ccompiler]) | Wrap CCompiler.compile()
  `dist_error`(*args) | Raise a compiler error
  `dist_fatal`(*args) | Raise a distutils error
  `dist_info`() | Return a tuple containing info about (platform, compiler, extra_args), required by the abstract class '_CCompiler' for discovering the platform environment.
  `dist_load_module`(name, path) | Load a module from file, required by the abstract class '_Cache'.
  `dist_log`(*args[, stderr]) | Print a console message
  `dist_test`(source, flags[, macros]) | Return True if 'CCompiler.compile()' able to compile a source file with certain flags.
  `feature_ahead`(names) | Return list of features in 'names' after remove any implied features and keep the origins.
  `feature_c_preprocessor`(feature_name[, tabs]) | Generate C preprocessor definitions and include headers of a CPU feature.
  `feature_detect`(names) | Return a list of CPU features that required to be detected sorted from the lowest to highest interest.
  `feature_get_til`(names, keyisfalse) | same as feature_implies_c() but stop collecting implied features when feature's option that provided through parameter 'keyisfalse' is False, also sorting the returned features.
  `feature_implies`(names[, keep_origins]) | Return a set of CPU features that implied by 'names'
  `feature_implies_c`(names) | same as feature_implies() but combining 'names'
  `feature_is_exist`(name) | Returns True if a certain feature is exist and covered within `_Config.conf_features`.
  `feature_names`([names, force_flags, macros]) | Returns a set of CPU feature names that supported by platform and the C compiler.
  `feature_sorted`(names[, reverse]) | Sort a list of CPU features ordered by the lowest interest.
  `feature_untied`(names) | same as 'feature_ahead()' but if both features implied each other and keep the highest interest.
  `generate_dispatch_header`(header_path) | Generate the dispatch header which contains the #definitions and headers for platform-specific instruction-sets for the enabled CPU baseline and dispatch-able features.
  `is_cached`() | Returns True if the class loaded from the cache file
  `me`(cb) | A static method that can be treated as a decorator to dynamically cache certain methods.
  `parse_targets`(source) | Fetch and parse configuration statements that required for defining the targeted CPU features, statements should be declared in the top of source in between C comment and start with a special mark @targets.
  `try_dispatch`(sources[, src_dir, ccompiler]) | Compile one or more dispatch-able sources and generates object files, also generates abstract C config headers and macros that used later for the final runtime dispatching process.

  cache_hash |
  cc_test_cexpr |
  cc_test_flags |
  feature_can_autovec |
  feature_extra_checks |
  feature_flags |
  feature_is_supported |
  feature_test |
  report |