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Describes implementation-defined aspects of the Arm® C compiler and C library relating to translation, as required by the ISO C standard.

How a diagnostic is identified (3.10,

Diagnostic messages that the compiler produces are of the form:

source-file:line-number:char-number: description [diagnostic-flag]


Is a text description of the error.
Is an optional diagnostic flag of the form -Wflag, only for messages that can be suppressed.
Whether each nonempty sequence of white-space characters other than new-line is retained or replaced by one space character in translation phase 3 (
Each nonempty sequence of white-space characters, other than new-line, is replaced by one space character.