Help¶

The %a hexadecimal format for floating point value conversion was added in C99, but the output is not easily understood so it rarely appears in application code.

Selecting this adds support for the conversion, but increases the overall code size related to FP support.

Direct dependencies¶

CBPRINTF_FULL_INTEGRAL

(Includes any dependencies from ifs and menus.)

Defaults¶

No defaults. Implicitly defaults to n.

Symbols selected by this symbol¶

CBPRINTF_FP_SUPPORT

Symbols that select this symbol¶

CBPRINTF_FP_ALWAYS_A

Kconfig definition¶

At <Zephyr>/lib/os/Kconfig.cbprintf:73

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:33 → <Zephyr>/lib/Kconfig:16 → <Zephyr>/lib/os/Kconfig:63

Menu path: (Top) → Additional libraries → OS Support Library

config CBPRINTF_FP_A_SUPPORT
    bool "Enable floating point %a conversions"
    select CBPRINTF_FP_SUPPORT
    depends on CBPRINTF_FULL_INTEGRAL
    help
      The %a hexadecimal format for floating point value conversion was
      added in C99, but the output is not easily understood so it rarely
      appears in application code.

      Selecting this adds support for the conversion, but increases the
      overall code size related to FP support.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)