:orphan:
# PetscConcat
Concatenate two tokens 
## Synopsis
```
#include <petscmacros.h>
<macro-expansion> PetscConcat(x, y)
```
No Fortran Support


## Input Parameters

- ***x -*** First token
- ***y -*** Second token





## Note
`PetscConcat()` will expand both arguments before pasting them together, use `PetscConcat_()`
if you don't want to expand them.


## Example usage
```none
  PetscConcat(hello,there) -> hellothere

  #define HELLO hello
  PetscConcat(HELLO,there)  -> hellothere
  PetscConcat_(HELLO,there) -> HELLOthere
```



## See Also
 `PetscStringize()`, `PetscExpand()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscmacros.h.html#PetscConcat">include/petscmacros.h</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/include/petscmacros.h)


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