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Newlib use nano mode as default. When enable nano mode, cjson use internal function to encode for float data. Otherwise using "sprintf" to encode float data.
42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
menu "Newlib"
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config NEWLIB_ENABLE
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bool "Enable newlib"
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default y
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help
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If you need use you own C library, make this option disable. The libraries and
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header files at this component will not be used.
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Note: ABI of the C library of your own must be same as SDK.
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choice NEWLIB_LIBRARY_LEVEL
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prompt "newlib level"
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default NEWLIB_LIBRARY_LEVEL_NANO
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depends on NEWLIB_ENABLE
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help
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Choose newlib library level.
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config NEWLIB_LIBRARY_LEVEL_NORMAL
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bool "normal"
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help
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If you need 64-bit integer formatting support or C99 features, select this
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option.
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config NEWLIB_LIBRARY_LEVEL_NANO
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bool "nano"
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help
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The newlib library which has been compiled with so-called "nano"
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formatting option. This option doesn't support 64-bit integer formats and C99
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features, such as positional arguments.
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For more details about "nano" formatting option, please see newlib readme file,
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search for '--enable-newlib-nano-formatted-io':
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https://sourceware.org/newlib/README
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If you do not need 64-bit integer formatting support or C99 features, select this
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option.
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endchoice
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endmenu
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