GNU Arm Embedded Toolchain

GCC regex, regular expressions

Asked by wlamers

Hello,

Does anyone know how to include regular expressions for the GCC toolchain. I have tried to link to all included libraies including libc.a But only the regex.h header seems to be included.

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chengbin (can-finner) said : 		#1

regular expression facility is implemented in newlib/libc/posix, unfortunately posix is not enabled/compiled on targets like arm-none-eabi right now.
So currently it is unavailable, that's why you can't find it in C library.

Thanks.

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chengbin (can-finner) said : 		#2

interfaces defined in newlib/libc/posix come from posix standard and are not C89 standard. These function depends on system calls other than ones abstracted by newlib.
As other bare metal systems, arm-none-eabi target does not have such addtional syscalls, so basically these posix interfaces are unavailable.

Hoping this can explain your question. Thanks.

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