Rcpp_FileExist

C++ Function Reference

1 Signature

bool BigDataStatMeth::Rcpp_FileExist(std::string fullPath)

2 Description

Checks if a file exists at the specified path.

3 Parameters

fullPath (std::string): Complete file path to check

4 Returns

bool True if file exists, false otherwise

5 Details

fullPathComplete file path to check bool True if file exists, false otherwise File check:Uses system calls to verify existenceHandles both relative and absolute pathsThread-safe implementation

6 Source Code

Implementation

File: inst/include/Utilities/Utilities.hpp • Lines 474-487

inline bool Rcpp_FileExist(std::string fullPath) 
    {
        bool exists = false;
        
        std::fstream fileStream;
        fileStream.open(fullPath);
        
        if (fileStream.good()) {
            exists = true;
        } else {
            exists = false;
        }
        return(exists);
    }

7 Usage Example

#include "BigDataStatMeth.hpp"

// Example usage
auto result = Rcpp_FileExist(...);

---
title: "Rcpp_FileExist"
subtitle: "C++ Function Reference"
---

## Signature

```cpp
bool BigDataStatMeth::Rcpp_FileExist(std::string fullPath)
```

## Description

Checks if a file exists at the specified path.

## Parameters

- `fullPath` (`std::string`): Complete file path to check

## Returns

bool True if file exists, false otherwise

## Details

fullPathComplete file path to check bool True if file exists, false otherwise
File check:Uses system calls to verify existenceHandles both relative and absolute pathsThread-safe implementation

## Source Code

::: {.callout-note collapse="true"}
### Implementation

**File:** `inst/include/Utilities/Utilities.hpp` • **Lines 474-487**

```cpp
inline bool Rcpp_FileExist(std::string fullPath) 
    {
        bool exists = false;
        
        std::fstream fileStream;
        fileStream.open(fullPath);
        
        if (fileStream.good()) {
            exists = true;
        } else {
            exists = false;
        }
        return(exists);
    }
```
:::

## Usage Example

```cpp
#include "BigDataStatMeth.hpp"

// Example usage
auto result = Rcpp_FileExist(...);
```