// Open the inputs and outputs
if ((fp1 = fopen (WXSTRINGCAST file1, "rb")) == NULL ||
(fp2 = fopen (WXSTRINGCAST file2, "rb")) == NULL ||
// Open the inputs and outputs
if ((fp1 = fopen (WXSTRINGCAST file1, "rb")) == NULL ||
(fp2 = fopen (WXSTRINGCAST file2, "rb")) == NULL ||