liba 0.1.15

An algorithm library based on C/C++
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149

#include "a.h"

static JSValue liba_hash_bkdr(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
    a_u32 x = 0;
    (void)this_val;
    if (argc > 1)
    {
        if (JS_ToUint32(ctx, &x, argv[1])) { return JS_EXCEPTION; }
    }
    if (argc > 0)
    {
        char const *str = JS_ToCString(ctx, argv[0]);
        x = a_hash_bkdr(str, x);
        JS_FreeCString(ctx, str);
    }
    return JS_NewUint32(ctx, x);
}

static JSValue liba_hash_sdbm(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
    a_u32 x = 0;
    (void)this_val;
    if (argc > 1)
    {
        if (JS_ToUint32(ctx, &x, argv[1])) { return JS_EXCEPTION; }
    }
    if (argc > 0)
    {
        char const *str = JS_ToCString(ctx, argv[0]);
        x = a_hash_sdbm(str, x);
        JS_FreeCString(ctx, str);
    }
    return JS_NewUint32(ctx, x);
}

#include "a/math.h"

static JSValue liba_isqrt(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
    (void)this_val;
    (void)argc;
    uint64_t x;
    if (JS_ToIndex(ctx, &x, argv[0])) { return JS_EXCEPTION; }
    return JS_NewUint32(ctx, a_u64_sqrt(x));
}

static JSValue liba_rsqrt(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
    (void)this_val;
    (void)argc;
    double x;
    if (JS_ToFloat64(ctx, &x, argv[0])) { return JS_EXCEPTION; }
    return JS_NewFloat64(ctx, a_f64_rsqrt(x));
}

#include "mf.h"

static JSCFunctionListEntry const liba_mf_proto[] = {
    JS_PROP_INT32_DEF("NUL", A_MF_NUL, 0),
    JS_PROP_INT32_DEF("GAUSS", A_MF_GAUSS, 0),
    JS_PROP_INT32_DEF("GAUSS2", A_MF_GAUSS2, 0),
    JS_PROP_INT32_DEF("GBELL", A_MF_GBELL, 0),
    JS_PROP_INT32_DEF("SIG", A_MF_SIG, 0),
    JS_PROP_INT32_DEF("DSIG", A_MF_DSIG, 0),
    JS_PROP_INT32_DEF("PSIG", A_MF_PSIG, 0),
    JS_PROP_INT32_DEF("TRAP", A_MF_TRAP, 0),
    JS_PROP_INT32_DEF("TRI", A_MF_TRI, 0),
    JS_PROP_INT32_DEF("LINS", A_MF_LINS, 0),
    JS_PROP_INT32_DEF("LINZ", A_MF_LINZ, 0),
    JS_PROP_INT32_DEF("S", A_MF_S, 0),
    JS_PROP_INT32_DEF("Z", A_MF_Z, 0),
    JS_PROP_INT32_DEF("PI", A_MF_PI, 0),
    JS_CFUNC_DEF("gauss", 3, liba_mf_gauss),
    JS_CFUNC_DEF("gauss2", 5, liba_mf_gauss2),
    JS_CFUNC_DEF("gbell", 4, liba_mf_gbell),
    JS_CFUNC_DEF("sig", 3, liba_mf_sig),
    JS_CFUNC_DEF("dsig", 5, liba_mf_dsig),
    JS_CFUNC_DEF("psig", 5, liba_mf_psig),
    JS_CFUNC_DEF("trap", 5, liba_mf_trap),
    JS_CFUNC_DEF("tri", 4, liba_mf_tri),
    JS_CFUNC_DEF("lins", 3, liba_mf_lins),
    JS_CFUNC_DEF("linz", 3, liba_mf_linz),
    JS_CFUNC_DEF("s", 3, liba_mf_s),
    JS_CFUNC_DEF("z", 3, liba_mf_z),
    JS_CFUNC_DEF("pi", 5, liba_mf_pi),
};

#if !defined A_VERSION
#include "a/version.h"
#endif /* A_VERSION */

static JSCFunctionListEntry const liba_proto[] = {
    JS_OBJECT_DEF("mf", liba_mf_proto, A_LEN(liba_mf_proto), 0),
    JS_PROP_STRING_DEF("VERSION", A_VERSION, 0),
    JS_CFUNC_DEF("hash_sdbm", 1, liba_hash_sdbm),
    JS_CFUNC_DEF("hash_bkdr", 1, liba_hash_bkdr),
    JS_CFUNC_DEF("isqrt", 1, liba_isqrt),
    JS_CFUNC_DEF("rsqrt", 1, liba_rsqrt),
};

int js_liba_init(JSContext *ctx, JSModuleDef *m)
{
    js_liba_crc16_init(ctx, m);
    js_liba_crc32_init(ctx, m);
    js_liba_crc64_init(ctx, m);
    js_liba_crc8_init(ctx, m);
    js_liba_hpf_init(ctx, m);
    js_liba_lpf_init(ctx, m);
    js_liba_pid_init(ctx, m);
    js_liba_pid_fuzzy_init(ctx, m);
    js_liba_pid_neuro_init(ctx, m);
    js_liba_regress_simple_init(ctx, m);
    js_liba_tf_init(ctx, m);
    js_liba_trajbell_init(ctx, m);
    js_liba_trajpoly3_init(ctx, m);
    js_liba_trajpoly5_init(ctx, m);
    js_liba_trajpoly7_init(ctx, m);
    js_liba_trajtrap_init(ctx, m);
    js_liba_version_init(ctx, m);
    return JS_SetModuleExportList(ctx, m, liba_proto, A_LEN(liba_proto));
}

JSModuleDef *js_init_module(JSContext *ctx, char const *module_name)
{
    JSModuleDef *m = JS_NewCModule(ctx, module_name, js_liba_init);
    if (m)
    {
        JS_AddModuleExport(ctx, m, "crc16");
        JS_AddModuleExport(ctx, m, "crc32");
        JS_AddModuleExport(ctx, m, "crc64");
        JS_AddModuleExport(ctx, m, "crc8");
        JS_AddModuleExport(ctx, m, "hpf");
        JS_AddModuleExport(ctx, m, "lpf");
        JS_AddModuleExport(ctx, m, "pid");
        JS_AddModuleExport(ctx, m, "pid_fuzzy");
        JS_AddModuleExport(ctx, m, "pid_neuro");
        JS_AddModuleExport(ctx, m, "regress_simple");
        JS_AddModuleExport(ctx, m, "tf");
        JS_AddModuleExport(ctx, m, "trajbell");
        JS_AddModuleExport(ctx, m, "trajpoly3");
        JS_AddModuleExport(ctx, m, "trajpoly5");
        JS_AddModuleExport(ctx, m, "trajpoly7");
        JS_AddModuleExport(ctx, m, "trajtrap");
        JS_AddModuleExport(ctx, m, "version");
        JS_AddModuleExportList(ctx, m, liba_proto, A_LEN(liba_proto));
    }
    return m;
}