# PetscMemcmp

Compares two byte streams in memory.

### Synopsis

    #include "petsc.h"
    PetscErrorCode PETSC_DLLEXPORT PetscMemcmp(const void *str1,const void *str2,size_t len,PetscTruth *e)

Not Collective

### Input Parameters

| str1 | - Pointer to the first byte stream
| str2 | - Pointer to the second byte stream
| len | - The length of the byte stream (both str1 and str2 are assumed to be of length len)

### Output Parameters

e -PETSC_TRUE if equal else PETSC_FALSE.

### Note

This routine is anologous to memcmp()

Level:intermediate
Location:src/sys/src/utils/memc.c
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