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remove old math code

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This commit is contained in:
John Alanbrook
2026-01-02 15:41:29 -06:00
parent 7ae5a0c06b
commit d6468e7fd2
2 changed files with 1 additions and 251 deletions
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250
source/quickjs.c
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@@ -33682,228 +33682,6 @@ void JS_AddIntrinsicStringNormalize(JSContext *ctx)
countof(js_string_proto_normalize));
}
/* Math */
/* precondition: a and b are not NaN */
static double js_fmin(double a, double b)
{
if (a == 0 && b == 0) {
JSFloat64Union a1, b1;
a1.d = a;
b1.d = b;
a1.u64 |= b1.u64;
return a1.d;
} else {
return fmin(a, b);
}
}
/* precondition: a and b are not NaN */
static double js_fmax(double a, double b)
{
if (a == 0 && b == 0) {
JSFloat64Union a1, b1;
a1.d = a;
b1.d = b;
a1.u64 &= b1.u64;
return a1.d;
} else {
return fmax(a, b);
}
}
static JSValue js_math_min_max(JSContext *ctx, JSValueConst this_val,
int argc, JSValueConst *argv, int magic)
{
BOOL is_max = magic;
double r, a;
int i;
uint32_t tag;
if (unlikely(argc == 0)) {
return __JS_NewFloat64(ctx, is_max ? -1.0 / 0.0 : 1.0 / 0.0);
}
tag = JS_VALUE_GET_TAG(argv[0]);
if (tag == JS_TAG_INT) {
int a1, r1 = JS_VALUE_GET_INT(argv[0]);
for(i = 1; i < argc; i++) {
tag = JS_VALUE_GET_TAG(argv[i]);
if (tag != JS_TAG_INT) {
r = r1;
goto generic_case;
}
a1 = JS_VALUE_GET_INT(argv[i]);
if (is_max)
r1 = max_int(r1, a1);
else
r1 = min_int(r1, a1);
}
return JS_NewInt32(ctx, r1);
} else {
if (JS_ToFloat64(ctx, &r, argv[0]))
return JS_EXCEPTION;
i = 1;
generic_case:
while (i < argc) {
if (JS_ToFloat64(ctx, &a, argv[i]))
return JS_EXCEPTION;
if (!isnan(r)) {
if (isnan(a)) {
r = a;
} else {
if (is_max)
r = js_fmax(r, a);
else
r = js_fmin(r, a);
}
}
i++;
}
return JS_NewFloat64(ctx, r);
}
}
static double js_math_sign(double a)
{
if (isnan(a) || a == 0.0)
return a;
if (a < 0)
return -1;
else
return 1;
}
static double js_math_round(double a)
{
JSFloat64Union u;
uint64_t frac_mask, one;
unsigned int e, s;
u.d = a;
e = (u.u64 >> 52) & 0x7ff;
if (e < 1023) {
/* abs(a) < 1 */
if (e == (1023 - 1) && u.u64 != 0xbfe0000000000000) {
/* abs(a) > 0.5 or a = 0.5: return +/-1.0 */
u.u64 = (u.u64 & ((uint64_t)1 << 63)) | ((uint64_t)1023 << 52);
} else {
/* return +/-0.0 */
u.u64 &= (uint64_t)1 << 63;
}
} else if (e < (1023 + 52)) {
s = u.u64 >> 63;
one = (uint64_t)1 << (52 - (e - 1023));
frac_mask = one - 1;
u.u64 += (one >> 1) - s;
u.u64 &= ~frac_mask; /* truncate to an integer */
}
/* otherwise: abs(a) >= 2^52, or NaN, +/-Infinity: no change */
return u.d;
}
static JSValue js_math_hypot(JSContext *ctx, JSValueConst this_val,
int argc, JSValueConst *argv)
{
double r, a;
int i;
r = 0;
if (argc > 0) {
if (JS_ToFloat64(ctx, &r, argv[0]))
return JS_EXCEPTION;
if (argc == 1) {
r = fabs(r);
} else {
/* use the built-in function to minimize precision loss */
for (i = 1; i < argc; i++) {
if (JS_ToFloat64(ctx, &a, argv[i]))
return JS_EXCEPTION;
r = hypot(r, a);
}
}
}
return JS_NewFloat64(ctx, r);
}
/* xorshift* random number generator by Marsaglia */
static uint64_t xorshift64star(uint64_t *pstate)
{
uint64_t x;
x = *pstate;
x ^= x >> 12;
x ^= x << 25;
x ^= x >> 27;
*pstate = x;
return x * 0x2545F4914F6CDD1D;
}
static void js_random_init(JSContext *ctx)
{
struct timeval tv;
gettimeofday(&tv, NULL);
ctx->random_state = ((int64_t)tv.tv_sec * 1000000) + tv.tv_usec;
/* the state must be non zero */
if (ctx->random_state == 0)
ctx->random_state = 1;
}
static JSValue js_math_random(JSContext *ctx, JSValueConst this_val,
int argc, JSValueConst *argv)
{
JSFloat64Union u;
uint64_t v;
v = xorshift64star(&ctx->random_state);
/* 1.0 <= u.d < 2 */
u.u64 = ((uint64_t)0x3ff << 52) | (v >> 12);
return __JS_NewFloat64(ctx, u.d - 1.0);
}
static const JSCFunctionListEntry js_math_funcs[] = {
JS_CFUNC_MAGIC_DEF("min", 2, js_math_min_max, 0 ),
JS_CFUNC_MAGIC_DEF("max", 2, js_math_min_max, 1 ),
JS_CFUNC_SPECIAL_DEF("abs", 1, f_f, fabs ),
JS_CFUNC_SPECIAL_DEF("floor", 1, f_f, floor ),
JS_CFUNC_SPECIAL_DEF("ceil", 1, f_f, ceil ),
JS_CFUNC_SPECIAL_DEF("round", 1, f_f, js_math_round ),
JS_CFUNC_SPECIAL_DEF("sqrt", 1, f_f, sqrt ),
JS_CFUNC_SPECIAL_DEF("acos", 1, f_f, acos ),
JS_CFUNC_SPECIAL_DEF("asin", 1, f_f, asin ),
JS_CFUNC_SPECIAL_DEF("atan", 1, f_f, atan ),
JS_CFUNC_SPECIAL_DEF("atan2", 2, f_f_f, atan2 ),
JS_CFUNC_SPECIAL_DEF("cos", 1, f_f, cos ),
JS_CFUNC_SPECIAL_DEF("exp", 1, f_f, exp ),
JS_CFUNC_SPECIAL_DEF("log", 1, f_f, log ),
JS_CFUNC_SPECIAL_DEF("pow", 2, f_f_f, js_pow ),
JS_CFUNC_SPECIAL_DEF("sin", 1, f_f, sin ),
JS_CFUNC_SPECIAL_DEF("tan", 1, f_f, tan ),
/* ES6 */
JS_CFUNC_SPECIAL_DEF("trunc", 1, f_f, trunc ),
JS_CFUNC_SPECIAL_DEF("sign", 1, f_f, js_math_sign ),
JS_CFUNC_SPECIAL_DEF("cosh", 1, f_f, cosh ),
JS_CFUNC_SPECIAL_DEF("sinh", 1, f_f, sinh ),
JS_CFUNC_SPECIAL_DEF("tanh", 1, f_f, tanh ),
JS_CFUNC_SPECIAL_DEF("acosh", 1, f_f, acosh ),
JS_CFUNC_SPECIAL_DEF("asinh", 1, f_f, asinh ),
JS_CFUNC_SPECIAL_DEF("atanh", 1, f_f, atanh ),
JS_CFUNC_SPECIAL_DEF("expm1", 1, f_f, expm1 ),
JS_CFUNC_SPECIAL_DEF("log1p", 1, f_f, log1p ),
JS_CFUNC_SPECIAL_DEF("log2", 1, f_f, log2 ),
JS_CFUNC_SPECIAL_DEF("log10", 1, f_f, log10 ),
JS_CFUNC_DEF("hypot", 2, js_math_hypot ),
JS_CFUNC_DEF("random", 0, js_math_random ),
JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Math", JS_PROP_CONFIGURABLE ),
JS_PROP_DOUBLE_DEF("E", 2.718281828459045, 0 ),
JS_PROP_DOUBLE_DEF("PI", 3.141592653589793, 0 ),
};
static const JSCFunctionListEntry js_math_obj[] = {
JS_OBJECT_DEF("Math", js_math_funcs, countof(js_math_funcs), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
};
/* RegExp */
static void js_regexp_finalizer(JSRuntime *rt, JSValue val)
@@ -37091,32 +36869,6 @@ void JS_AddIntrinsicMapSet(JSContext *ctx)
}
}
/* URI handling */
static int string_get_hex(JSString *p, int k, int n) {
int c = 0, h;
while (n-- > 0) {
if ((h = from_hex(string_get(p, k++))) < 0)
return -1;
c = (c << 4) | h;
}
return c;
}
static int isURIReserved(int c) {
return c < 0x100 && memchr(";/?:@&=+$,#", c, sizeof(";/?:@&=+$,#") - 1) != NULL;
}
static int __attribute__((format(printf, 2, 3))) js_throw_URIError(JSContext *ctx, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
JS_ThrowError(ctx, JS_URI_ERROR, fmt, ap);
va_end(ap);
return -1;
}
/* global object */
/* ============================================================================
@@ -39988,8 +39740,6 @@ int js_is_blob(JSContext *js, JSValue v)
* stone() function - deep freeze with blob support
* ============================================================================ */
static JSValue js_cell_stone_deep(JSContext *ctx, JSValueConst obj);
static JSValue js_cell_stone_deep(JSContext *ctx, JSValueConst obj)
{
/* Handle blob specially */