# PR_ExportFileMapAsString Creates a string identifying a {ref}`PRFileMap`. ## Syntax ```{code} #include NSPR_API( PRStatus ) PR_ExportFileMapAsString( PRFileMap *fm, PRSize bufsize, char *buf ); ``` 1. define PR_FILEMAP_STRING_BUFSIZE 128 ### Parameters The function has the following parameters: `fm` : A pointer to the {ref}`PRFileMap` to be represented as a string. `bufsize` : sizeof(buf) `buf` : A pointer to abuffer of length `PR_FILEMAP_STRING_BUFSIZE`. ### Returns {ref}`PRStatus` ## Description Creates an identifier, as a string, from a {ref}`PRFileMap` object previously created with {ref}`PR_OpenAnonFileMap`.