getUndefines
Description
gets, from the build information, preprocessor macros to undefine.undefines
= getUndefines(buildinfo
,includeGroups
,excludeGroups
)
Examples
Get undefine Preprocessor Macros from Build Information
This example shows how to get, from a build information object, preprocessor macros to undefine.
Suppose you have two files, myFile.c
and
myInc.h
, in your current working folder.
// myFile.c #include <stdio.h> int main(void) { #ifdef __STDC_VERSION__ printf("__STDC_VERSION__ is defined\n"); #else printf("__STDC_VERSION__ is not defined\n"); #endif #ifdef MY_MACRO printf("MY_MACRO is defined\n"); #else printf("MY_MACRO is not defined\n"); #endif } // myInc.h #ifndef MYINC_H #define MYINC_H #define MY_MACRO #endif
Create an RTW.BuildInfo
object and specify source files,
undefine directives, and preinclude
files.
buildInfo = RTW.BuildInfo; buildInfo.ComponentName = 'MyComponent'; addSourceFiles(buildInfo, 'myfile.c'); addUndefines(buildInfo, '__STDC_VERSION__'); addPreincludeFiles(buildInfo, 'myinc.h');
Get the preprocessor macros to undefine.
undefines=getUndefines(buildInfo)
undefines = 1×1 cell array {'__STDC_VERSION__'}
Input Arguments
buildinfo
— Build information object
object
Required. RTW.BuildInfo
object that contains information for
compiling and linking generated code.
includeGroups
— Macro groups to include
empty (default) | character vector | cell array of character vectors | string scalar
Optional. Specify the undefine preprocessor macro groups that you want to
include in the query. To view the group name of a macro group, access the
Group
property of the corresponding object.
excludeGroups
— Macro groups to exclude
empty (default) | character vector | cell array of character vectors | string scalar
Optional. Specify the undefine preprocessor macro groups that you want to
exclude from the query. To view the group name of a macro group, access the
Group
property of the corresponding object.
Output Arguments
undefines
— Preprocessor macros
cell array of character vectors
Preprocessor macros to undefine, which the function obtains from the build information.
Version History
Introduced in R2024a
See Also
addUndefines
| removeUndefines
| addPreincludeFiles
| getPreincludeFiles
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