png_FILE_p       1718 png.h          PNG_EXPORT(74, void, png_init_io, (png_structrp png_ptr, png_FILE_p fp));
png_FILE_p         60 pngrio.c          check = fread(data, 1, length, png_voidcast(png_FILE_p, png_ptr->io_ptr));
png_FILE_p        379 pngtest.c            check = fread(data, 1, length, (png_FILE_p)io_ptr);
png_FILE_p        411 pngtest.c         check = fwrite(data, 1, length, (png_FILE_p)png_get_io_ptr(png_ptr));
png_FILE_p        831 pngtest.c         static png_FILE_p fpin;
png_FILE_p        832 pngtest.c         static png_FILE_p fpout;  /* "static" prevents setjmp corruption */
png_FILE_p         58 pngwio.c          check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr));
png_FILE_p         81 pngwio.c          png_FILE_p io_ptr;
png_FILE_p         86 pngwio.c          io_ptr = png_voidcast(png_FILE_p, (png_ptr->io_ptr));