PETSc version 3.17.4
PetscUnlikely
Hints the compiler that the given condition is usually FALSE
Synopsis
#include <petscmacros.h>
bool PetscUnlikely(bool cond)
Not Collective
Input Parameter
| cond | - Boolean expression
|
Notes
Not available from fortran.
This returns the same truth value, it is only a hint to compilers that the result of cond is
unlikely to be true.
Example usage
if (PetscUnlikely(cond)) {
foo(); // cold path
} else {
bar(); // hot path
}
See Also
PetscLikely(), PetscUnlikelyDebug(), PetscCall(), PetscDefined(), PetscHasAttribute(),
PETSC_ATTRIBUTE_COLD
Level
advanced
Location
include/petscmacros.h
Examples
src/sys/tutorials/ex6.c.html
Index of all Sys routines
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Index of all manual pages