(C) Convert a File's Character Encoding from UTF-8 to UFT-8-BOM

To add a utf-8 BOM to a file is just a matter of prepending these 3 bytes to the file: 0xEF 0xBB 0xBF.

This may be difficult in some programming languages, or it may be trivial in either. Therefore, the Chilkat solution you see here might be helpful, or in a language such as C++, the Chilkat solution isn't really necessary because it's easy to do yourself.

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#include <C_CkCharset.h>

void ChilkatSample(void)
    {
    HCkCharset charset;
    BOOL success;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    charset = CkCharset_Create();

    CkCharset_putFromCharset(charset,"utf-8");
    CkCharset_putToCharset(charset,"bom-utf-8");

    success = CkCharset_ConvertFile(charset,"qa_data/txt/helloWorld.txt","qa_output/helloWorldBom.txt");
    if (success != TRUE) {
        printf("%s\n",CkCharset_lastErrorText(charset));
        CkCharset_Dispose(charset);
        return;
    }

    printf("Success.\n");


    CkCharset_Dispose(charset);

    }