lcm.c File Reference

Implements the OP_LCM opcode for least common multiple. More...

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Functions
	if (!((va.type==VAL_INT)||(va.type==VAL_FLOAT))||!((vb.type==VAL_INT)||(vb.type==VAL_FLOAT)))
	if (a==INT64_MIN)
	while (y !=0)
	free_value (va)
	free_value (vb)
	push_value (vm, res)

Variables
case	OP_LCM
Value	va = pop_value(vm)
int64_t	a = (va.type == VAL_INT) ? va.i : (int64_t)va.d
int64_t	b = (vb.type == VAL_INT) ? vb.i : (int64_t)vb.d
int64_t	x = a
int64_t	y = b
int64_t	g = x
int64_t	l = (a / g) * b
Value	res = make_int(l)
	break

Detailed Description

Implements the OP_LCM opcode for least common multiple.

Behavior:

• Pops two numeric operands (a, b). Floats are truncated to int64.
• Computes lcm(|a|, |b|) using gcd; returns 0 if either input is 0.
• Pushes VAL_INT result. May overflow silently on extreme inputs.

Stack effect:

• Pop: b, a
• Push: lcm(a, b)

Types:

• Accepts VAL_INT and VAL_FLOAT; others cause a runtime error.

Definition in file lcm.c.

Function Documentation

free_value() [1/2]

free_value

(

va

)

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free_value() [2/2]

free_value

(

vb

)

if() [1/2]

if

(

!

(va.type==VAL_INT)||(va.type==VAL_FLOAT))||!((vb.type==VAL_INT)||(vb.type==VAL_FLOAT)

)

Definition at line 30 of file lcm.c.

if() [2/2]

if

(

a

= = INT64_MIN

)

Definition at line 38 of file lcm.c.

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push_value()

push_value	(	vm	,
		res	)

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while()

while

(

y !

= 0

)

Definition at line 54 of file lcm.c.

Variable Documentation

a

int64_t a = (va.type == VAL_INT) ? va.i : (int64_t)va.d

Definition at line 36 of file lcm.c.

b

int64_t b = (vb.type == VAL_INT) ? vb.i : (int64_t)vb.d

Definition at line 37 of file lcm.c.

break

break

Definition at line 66 of file lcm.c.

g

int64_t g = x

Definition at line 59 of file lcm.c.

l

int64_t l = (a / g) * b

Definition at line 61 of file lcm.c.

OP_LCM

case OP_LCM

Definition at line 27 of file lcm.c.

res

Value res = make_int(l)

Definition at line 62 of file lcm.c.

va

Value va = pop_value(vm)

Definition at line 29 of file lcm.c.

x

int64_t x = a

Definition at line 53 of file lcm.c.

y

int64_t y = b

Definition at line 53 of file lcm.c.