get_NewLineEnding

C++ Function Reference

1 Signature

bool BigDataStatMeth::get_NewLineEnding(const char *filename)

2 Description

Checks if a file ends with a newline character.

3 Parameters

filename (const char *): Path to the file to check

4 Returns

bool True if file ends with newline, false otherwise

5 Details

filenamePath to the file to check bool True if file ends with newline, false otherwiseOpens file in binary mode to ensure consistent behavior across platforms

6 Caller Graph

7 Source Code

Implementation

File: inst/include/hdf5Utilities/hdf5ImportFiles.hpp • Lines 93-102

inline bool get_NewLineEnding(const char *filename) {
        const int LINE_FEED = '\x0A';
        FILE *f = fopen(filename, "rb");  /* binary mode */
        if (f == NULL) return false;
        const bool empty_file = fseek(f, 0, SEEK_END) == 0 && ftell(f) == 0;
        const bool result = !empty_file ||
            (fseek(f, -1, SEEK_END) == 0 && fgetc(f) == LINE_FEED);
        fclose(f);
        return result;
    }

8 Usage Example

#include "BigDataStatMeth.hpp"

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

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

## Signature

```cpp
bool BigDataStatMeth::get_NewLineEnding(const char *filename)
```

## Description

Checks if a file ends with a newline character.

## Parameters

- `filename` (`const char *`): Path to the file to check

## Returns

bool True if file ends with newline, false otherwise

## Details

filenamePath to the file to check bool True if file ends with newline, false otherwiseOpens file in binary mode to ensure consistent behavior across platforms

## Caller Graph

::: {.diagram-section}
<object type="image/svg+xml" data="images/namespace_big_data_stat_meth_a51c0808c37e2b9f02393112466bdcfd2_icgraph.svg" class="class-diagram">
  <img src="images/namespace_big_data_stat_meth_a51c0808c37e2b9f02393112466bdcfd2_icgraph.svg" alt="Function dependencies"/>
</object>
:::

## Source Code

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

**File:** `inst/include/hdf5Utilities/hdf5ImportFiles.hpp` • **Lines 93-102**

```cpp
inline bool get_NewLineEnding(const char *filename) {
        const int LINE_FEED = '\x0A';
        FILE *f = fopen(filename, "rb");  /* binary mode */
        if (f == NULL) return false;
        const bool empty_file = fseek(f, 0, SEEK_END) == 0 && ftell(f) == 0;
        const bool result = !empty_file ||
            (fseek(f, -1, SEEK_END) == 0 && fgetc(f) == LINE_FEED);
        fclose(f);
        return result;
    }
```
:::

## Usage Example

```cpp
#include "BigDataStatMeth.hpp"

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