1 files changed, 79 insertions, 0 deletions
diff --git a/gsl-1.9/fft/gsl_fft_real_float.h b/gsl-1.9/fft/gsl_fft_real_float.h
new file mode 100644
index 0000000..2c219d7
--- /dev/null
+++ b/gsl-1.9/fft/gsl_fft_real_float.h
@@ -0,0 +1,79 @@
+/* fft/gsl_fft_real_float.h
+ * 
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000 Brian Gough
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GSL_FFT_REAL_FLOAT_H__
+#define __GSL_FFT_REAL_FLOAT_H__
+
+#include <stddef.h>
+
+#include <gsl/gsl_math.h>
+#include <gsl/gsl_complex.h>
+#include <gsl/gsl_fft.h>
+
+#undef __BEGIN_DECLS
+#undef __END_DECLS
+#ifdef __cplusplus
+# define __BEGIN_DECLS extern "C" {
+# define __END_DECLS }
+#else
+# define __BEGIN_DECLS /* empty */
+# define __END_DECLS /* empty */
+#endif
+
+__BEGIN_DECLS
+
+int gsl_fft_real_float_radix2_transform (float data[], const size_t stride, const size_t n) ;
+
+typedef struct
+  {
+    size_t n;
+    size_t nf;
+    size_t factor[64];
+    gsl_complex_float *twiddle[64];
+    gsl_complex_float *trig;
+  }
+gsl_fft_real_wavetable_float;
+
+typedef struct
+  {
+    size_t n;
+    float *scratch;
+  }
+gsl_fft_real_workspace_float;
+
+gsl_fft_real_wavetable_float * gsl_fft_real_wavetable_float_alloc (size_t n);
+
+void  gsl_fft_real_wavetable_float_free (gsl_fft_real_wavetable_float * wavetable);
+
+gsl_fft_real_workspace_float * gsl_fft_real_workspace_float_alloc (size_t n);
+
+void  gsl_fft_real_workspace_float_free (gsl_fft_real_workspace_float * workspace);
+
+int gsl_fft_real_float_transform (float data[], const size_t stride, const size_t n,
+                                  const gsl_fft_real_wavetable_float * wavetable,
+                                  gsl_fft_real_workspace_float * work);
+
+
+int gsl_fft_real_float_unpack (const float real_float_coefficient[],
+                               float complex_coefficient[],
+                               const size_t stride, const size_t n);
+
+__END_DECLS
+
+#endif /* __GSL_FFT_REAL_FLOAT_H__ */