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take_cheeze
39 lines
1.2 KiB
Markdown
39 lines
1.2 KiB
Markdown
# mruby configuration macros.
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## stdio setting.
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`ENABLE_STDIO`
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* Will be defined automatically if `DISABLE_STDIO` isn't defined.
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* Uses `<stdio.h>` functions.
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`DISABLE_STDIO`
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* When defined `<stdio.h>` functions won't be used.
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## Debug macros.
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`ENABLE_DEBUG`
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* When defined code fetch hook and debug OP hook will be enabled.
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* When using any of the hook set function pointer `code_fetch_hook` and/or `debug_op_hook` of `mrb_state`.
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* Fetch hook will be called before any OP.
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* Debug OP hook will be called when dispatching `OP_DEBUG`.
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`DISABLE_DEBUG`
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* Will be define automatically if `ENABLE_DEBUG` isn't defined.
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`MRB_DEBUG`
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* When defined `mrb_assert*` macro will be defined with macros from `<assert.h>`.
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* Could be enabled via `enable_debug` method of `MRuby::Build`.
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## Stack configuration
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`MRB_STACK_EXTEND_DOUBLING`
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* If defined doubles the stack size when extending it.
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* Else extends stack with `MRB_STACK_GROWTH`.
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`MRB_STACK_GROWTH`
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* Default value is `128`.
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* Used in stack extending.
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* Ignored when `MRB_STACK_EXTEND_DOUBLING` is defined.
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`MRB_STACK_MAX`
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* Default value is `0x40000 - MRB_STACK_GROWTH`.
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* Raises `RuntimeError` when stack size exceeds this value.
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