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Diffstat (limited to 'spec/rtems/basedefs/req/printflike-0.yml')
| -rw-r--r-- | spec/rtems/basedefs/req/printflike-0.yml | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/spec/rtems/basedefs/req/printflike-0.yml b/spec/rtems/basedefs/req/printflike-0.yml new file mode 100644 index 00000000..39c923dc --- /dev/null +++ b/spec/rtems/basedefs/req/printflike-0.yml @@ -0,0 +1,32 @@ +SPDX-License-Identifier: CC-BY-SA-4.0 +copyrights: +- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) +enabled-by: true +links: +- role: requirement-refinement + uid: ../if/printflike +non-functional-type: interface +rationale: | + 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: non-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} as well as + ${../if/printflike:/params[1]/name} are constant numbers + referring to two different arguments of that function, + and the function argument number ${../if/printflike:/params[0]/name} + is a ``printf``-format string, + and the function argument number {../if/printflike:/params[1]/name} + is the first argument to be used in the ``printf``-format string, + and all other arguments used in the ``printf``-format string + are arguments {../if/printflike:/params[1]/name} + 1, + {../if/printflike:/params[1]/name} + 2, + {../if/printflike:/params[1]/name} + 3, and so on, + the macro shall cause the compiler to use this information for + type checking the format string and arguments. +type: requirement |