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//: Arithmetic primitives
:(before "End Primitive Recipe Declarations")
ADD,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["add"] = ADD;
:(before "End Primitive Recipe Implementations")
case ADD: {
double result = 0;
for (long long int i = 0; i < SIZE(ingredients); ++i) {
if (!scalar(ingredients.at(i))) {
raise << current_recipe_name() << ": 'add' requires number ingredients, but got " << current_instruction().ingredients.at(i).original_string << '\n' << end();
goto finish_instruction;
}
result += ingredients.at(i).at(0);
}
products.resize(1);
products.at(0).push_back(result);
break;
}
:(scenario add_literal)
recipe main [
1:number <- add 23, 34
]
+mem: storing 57 in location 1
:(scenario add)
recipe main [
1:number <- copy 23
2:number <- copy 34
3:number <- add 1:number, 2:number
]
+mem: storing 57 in location 3
:(scenario add_multiple)
recipe main [
1:number <- add 3, 4, 5
]
+mem: storing 12 in location 1
:(before "End Primitive Recipe Declarations")
SUBTRACT,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["subtract"] = SUBTRACT;
:(before "End Primitive Recipe Implementations")
case SUBTRACT: {
if (ingredients.empty()) {
raise << current_recipe_name() << ": 'subtract' has no ingredients\n" << end();
break;
}
if (!scalar(ingredients.at(0))) {
raise << current_recipe_name() << ": 'subtract' requires number ingredients, but got " << current_instruction().ingredients.at(0).original_string << '\n' << end();
break;
}
double result = ingredients.at(0).at(0);
for (long long int i = 1; i < SIZE(ingredients); ++i) {
if (!scalar(ingredients.at(i))) {
raise << current_recipe_name() << ": 'subtract' requires number ingredients, but got " << current_instruction().ingredients.at(i).original_string << '\n' << end();
goto finish_instruction;
}
result -= ingredients.at(i).at(0);
}
products.resize(1);
products.at(0).push_back(result);
break;
}
:(scenario subtract_literal)
recipe main [
1:number <- subtract 5, 2
]
+mem: storing 3 in location 1
:(scenario subtract)
recipe main [
1:number <- copy 23
2:number <- copy 34
3:number <- subtract 1:number, 2:number
]
+mem: storing -11 in location 3
:(scenario subtract_multiple)
recipe main [
1:number <- subtract 6, 3, 2
]
+mem: storing 1 in location 1
:(before "End Primitive Recipe Declarations")
MULTIPLY,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["multiply"] = MULTIPLY;
:(before "End Primitive Recipe Implementations")
case MULTIPLY: {
double result = 1;
for (long long int i = 0; i < SIZE(ingredients); ++i) {
if (!scalar(ingredients.at(i))) {
raise << current_recipe_name() << ": 'multiply' requires number ingredients, but got " << current_instruction().ingredients.at(i).original_string << '\n' << end();
goto finish_instruction;
}
result *= ingredients.at(i).at(0);
}
products.resize(1);
products.at(0).push_back(result);
break;
}
:(scenario multiply_literal)
recipe main [
1:number <- multiply 2, 3
]
+mem: storing 6 in location 1
:(scenario multiply)
recipe main [
1:number <- copy 4
2:number <- copy 6
3:number <- multiply 1:number, 2:number
]
+mem: storing 24 in location 3
:(scenario multiply_multiple)
recipe main [
1:number <- multiply 2, 3, 4
]
+mem: storing 24 in location 1
:(before "End Primitive Recipe Declarations")
DIVIDE,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["divide"] = DIVIDE;
:(before "End Primitive Recipe Implementations")
case DIVIDE: {
if (ingredients.empty()) {
raise << current_recipe_name() << ": 'divide' has no ingredients\n" << end();
break;
}
if (!scalar(ingredients.at(0))) {
raise << current_recipe_name() << ": 'divide' requires number ingredients, but got " << current_instruction().ingredients.at(0).original_string << '\n' << end();
break;
}
double result = ingredients.at(0).at(0);
for (long long int i = 1; i < SIZE(ingredients); ++i) {
if (!scalar(ingredients.at(i))) {
raise << current_recipe_name() << ": 'divide' requires number ingredients, but got " << current_instruction().ingredients.at(i).original_string << '\n' << end();
goto finish_instruction;
}
result /= ingredients.at(i).at(0);
}
products.resize(1);
products.at(0).push_back(result);
break;
}
:(scenario divide_literal)
recipe main [
1:number <- divide 8, 2
]
+mem: storing 4 in location 1
:(scenario divide)
recipe main [
1:number <- copy 27
2:number <- copy 3
3:number <- divide 1:number, 2:number
]
+mem: storing 9 in location 3
:(scenario divide_multiple)
recipe main [
1:number <- divide 12, 3, 2
]
+mem: storing 2 in location 1
//: Integer division
:(before "End Primitive Recipe Declarations")
DIVIDE_WITH_REMAINDER,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["divide-with-remainder"] = DIVIDE_WITH_REMAINDER;
:(before "End Primitive Recipe Implementations")
case DIVIDE_WITH_REMAINDER: {
products.resize(2);
if (SIZE(ingredients) != 2) {
raise << current_recipe_name() << ": 'divide-with-remainder' requires exactly two ingredients, but got '" << current_instruction().to_string() << "'\n" << end();
break;
}
if (!scalar(ingredients.at(0)) || !scalar(ingredients.at(1))) {
raise << current_recipe_name() << ": 'divide-with-remainder' requires number ingredients, but got '" << current_instruction().to_string() << "'\n" << end();
break;
}
long long int a = static_cast<long long int>(ingredients.at(0).at(0));
long long int b = static_cast<long long int>(ingredients.at(1).at(0));
if (b == 0) {
raise << current_recipe_name() << ": divide by zero in '" << current_instruction().to_string() << "'\n" << end();
break;
}
long long int quotient = a / b;
long long int remainder = a % b;
// very large integers will lose precision
products.at(0).push_back(quotient);
products.at(1).push_back(remainder);
break;
}
:(scenario divide_with_remainder_literal)
recipe main [
1:number, 2:number <- divide-with-remainder 9, 2
]
+mem: storing 4 in location 1
+mem: storing 1 in location 2
:(scenario divide_with_remainder)
recipe main [
1:number <- copy 27
2:number <- copy 11
3:number, 4:number <- divide-with-remainder 1:number, 2:number
]
+mem: storing 2 in location 3
+mem: storing 5 in location 4
:(scenario divide_with_decimal_point)
recipe main [
1:number <- divide 5, 2
]
+mem: storing 2.5 in location 1
:(scenario divide_by_zero)
recipe main [
1:number <- divide 4, 0
]
+mem: storing inf in location 1
:(scenario divide_by_zero_2)
% Hide_warnings = true;
recipe main [
1:number <- divide-with-remainder 4, 0
]
# integer division can't return floating-point infinity
+warn: main: divide by zero in '1:number <- divide-with-remainder 4, 0'
:(code)
inline bool scalar(const vector<long long int>& x) {
return SIZE(x) == 1;
}
inline bool scalar(const vector<double>& x) {
return SIZE(x) == 1;
}
|