initial commit: ts time series analysis library v0.1.0

- 354 financial and mathematical time-series indicators
- Uniform C11 API with consistent function signatures
- 349 passing tests with -Werror
- Static and shared library builds
- pkg-config integration
- Python bindings
- Fuzzing and sanitizer support
- Security hardening flags

1 files changed, 49 insertions, 0 deletions

diff --git a/test/ichimoku.c b/test/ichimoku.c
new file mode 100644
index 0000000..ea20056
--- /dev/null
+++ b/test/ichimoku.c
@@ -0,0 +1,49 @@
+#include <math.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include "ts.h"
+
+bool ts_test_ichimoku( void )
+{
+    uint_t n = 55;
+    fp_t *o = malloc( n * sizeof( fp_t ) );
+    fp_t *h = malloc( n * sizeof( fp_t ) );
+    fp_t *l = malloc( n * sizeof( fp_t ) );
+    fp_t *cl = malloc( n * sizeof( fp_t ) );
+
+    if ( !o || !h || !l || !cl )
+    {
+        free( o ); free( h ); free( l ); free( cl );
+        return false;
+    }
+
+    for ( uint_t i = 0; i < n; ++i )
+    {
+        o[i] = (fp_t)(100 + i);
+        h[i] = (fp_t)(102 + i);
+        l[i] = (fp_t)(98 + i);
+        cl[i] = (fp_t)(101 + i);
+    }
+
+    fp_t const * const x[4] = { o, h, l, cl };
+
+    /* Fixed: include current bar in lookback, Senkou plotted 26 ahead, Chikou 26 behind */
+    /* offset=52, y_n=55-52=3 */
+    fp_t const et[] = { 148, 149, 150 };
+    fp_t const ek[] = { 139.5, 140.5, 141.5 };
+    fp_t const esa[] = { 117.75, 118.75, 119.75 };
+    fp_t const esb[] = { 0, 0, 0 };
+    fp_t const ec[] = { 127, 128, 129 };
+    fp_t const * const exp[5] = { et, ek, esa, esb, ec };
+
+    ts_constant_t c;
+    memset(&c, 0, sizeof(c));
+    bool result = ts_test(ts_ichimoku, ts_ichimoku_offset, x, exp, n, &c, &ts_ichimoku_p);
+
+    free( o );
+    free( h );
+    free( l );
+    free( cl );
+
+    return result;
+}