cos.c File Reference

Implements the OP_COS opcode using C99 math.h cos(). More...

#include <math.h>

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Functions
	if (v.type==VAL_INT||v.type==VAL_FLOAT)
	exit (1)

Variables
case	OP_COS
	else
	break

Detailed Description

Implements the OP_COS opcode using C99 math.h cos().

VM opcode snippet included by vm.c. Provides cosine function.

Behavior:

• Pops one numeric operand (int or float) from the stack.
• Computes cos(x) in double precision.
• Always pushes a VAL_FLOAT result.

Stack effect:

• Pop: x
• Push: cos(x)

Types:

• Accepts VAL_INT and VAL_FLOAT.
• Other types cause a runtime error.

Example:

• Input [0] → Output [1.0]

Definition in file cos.c.

Function Documentation

exit()

exit

(

1

)

if()

if

(

v.

type = = VAL_INT || v.type == VAL_FLOAT

)

Definition at line 37 of file cos.c.

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Variable Documentation

break

break

Definition at line 46 of file cos.c.

else

else

Initial value:

{
fprintf(stderr, "Runtime type error: COS expects number, got %s\n", value_type_name(v.type))

Definition at line 42 of file cos.c.

OP_COS

case OP_COS

Definition at line 35 of file cos.c.