PetscErrorCode PetscVSNPrintf(char *str,size_t len,const char *format,size_t *fullLength,va_list Argp)
|str||- location to put result|
|len||- the amount of space in str + format - the PETSc format string|
|fullLength||- the amount of space in str actually used.|
Developer Notes: this function may be called from an error handler, if an error occurs when it is called by the error handler than likely a recursion will occur and possible crash.
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