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GNU Info (fftw.info)fftw_export_wisdomExporting Wisdom ---------------- #include <fftw.h> void fftw_export_wisdom(void (*emitter)(char c, void *), void *data); void fftw_export_wisdom_to_file(FILE *output_file); char *fftw_export_wisdom_to_string(void); These functions allow you to export all currently accumulated `wisdom' in a form from which it can be later imported and restored, even during a separate run of the program. (Note: Words of Wisdom.) The current store of `wisdom' is not affected by calling any of these routines. `fftw_export_wisdom' exports the `wisdom' to any output medium, as specified by the callback function `emitter'. `emitter' is a `putc'-like function that writes the character `c' to some output; its second parameter is the `data' pointer passed to `fftw_export_wisdom'. For convenience, the following two "wrapper" routines are provided: `fftw_export_wisdom_to_file' writes the `wisdom' to the current position in `output_file', which should be open with write permission. Upon exit, the file remains open and is positioned at the end of the `wisdom' data. `fftw_export_wisdom_to_string' returns a pointer to a `NULL'-terminated string holding the `wisdom' data. This string is dynamically allocated, and it is the responsibility of the caller to deallocate it with `fftw_free' when it is no longer needed. All of these routines export the wisdom in the same format, which we will not document here except to say that it is LISP-like ASCII text that is insensitive to white space. automatically generated by info2www version 1.2.2.9 |