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SPDX-License-Identifier: CC-BY-SA-4.0
copyrights:
- Copyright (C) 2020 embedded brains GmbH & Co. KG
enabled-by: true
functional-type: function
links:
- role: interface-function
uid: ../if/printflike
rationale: |
This case is for functions where the arguments are not available
to be checked (such as ``vprintf``). The compiler will only check
the format string for consistency.
Counting of arguments starts at 1 from the left with the
exception of non-static C++ methods where the counting starts with
2 due to the implicit ``this`` argument.
references: []
requirement-type: functional
text: |
When the code is compiled with the GNU C compiler,
and the ${../if/printflike:/name} macro is used as last part of a
function declaration or prefixes a function definition,
and ${../if/printflike:/params[0]/name} is a constant number
referring to an argument of that function,
and the function argument number ${../if/printflike:/params[0]/name}
is a ``printf``-format string,
and the function argument ${../if/printflike:/params[1]/name} is 0,
the macro shall cause the compiler to use this information for
checking the format string.
type: requirement
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