all repos — min @ a0894a184e135b97649ee65977582137a9f20008

A small but practical concatenative programming language.

lib/numbers.nim

 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
 
import tables
import ../core/interpreter, ../core/utils

# Arithmetic

minsym "+":
  let a = i.pop
  let b = i.pop
  if a.isInt:
    if b.isInt:
      i.push newVal(a.intVal + b.intVal)
    elif b.isFloat:
      i.push newVal(a.intVal.float + b.floatVal)
    else:
      i.error(errTwoNumbersRequired)
  elif a.isFloat:
    if b.isFloat:
      i.push newVal(a.floatVal + b.floatVal)
    elif b.isInt:
      i.push newVal(a.floatVal + b.intVal.float)
    else:
      i.error(errTwoNumbersRequired)

minsym "-":
  let a = i.pop
  let b = i.pop
  if a.isInt:
    if b.isInt:
      i.push newVal(b.intVal - a.intVal)
    elif b.isFloat:
      i.push newVal(b.floatVal - a.intVal.float)
    else:
      i.error(errTwoNumbersRequired)
  elif a.isFloat:
    if b.isFloat:
      i.push newVal(b.floatVal - a.floatVal)
    elif b.isInt:
      i.push newVal(b.intVal.float - a.floatVal) 
    else:
      i.error(errTwoNumbersRequired)

minsym "*":
  let a = i.pop
  let b = i.pop
  if a.isInt:
    if b.isInt:
      i.push newVal(a.intVal * b.intVal)
    elif b.isFloat:
      i.push newVal(a.intVal.float * b.floatVal)
    else:
      i.error(errTwoNumbersRequired)
  elif a.isFloat:
    if b.isFloat:
      i.push newVal(a.floatVal * b.floatVal)
    elif b.isInt:
      i.push newVal(a.floatVal * b.intVal.float)
    else:
      i.error(errTwoNumbersRequired)

minsym "/":
  let a = i.pop
  let b = i.pop
  if b.isInt and b.intVal == 0:
    i.error errDivisionByZero
  if a.isInt:
    if b.isInt:
      i.push newVal(b.intVal / a.intVal)
    elif b.isFloat:
      i.push newVal(b.floatVal / a.intVal.float)
    else:
      i.error(errTwoNumbersRequired)
  elif a.isFloat:
    if b.isFloat:
      i.push newVal(b.floatVal / a.floatVal)
    elif b.isInt:
      i.push newVal(b.intVal.float / a.floatVal) 
    else:
      i.error(errTwoNumbersRequired)

minsym "div":
  let b = i.pop
  let a = i.pop
  if a.isInt and b.isInt:
    i.push(newVal(a.intVal div b.intVal))
  else:
    i.error errIncorrect, "Two integers are required on the stack"

minsym "mod":
  let b = i.pop
  let a = i.pop
  if a.isInt and b.isInt:
    i.push(newVal(a.intVal mod b.intVal))
  else:
    i.error errIncorrect, "Two integers are required on the stack"