{#     Copyright 2024, Kay Hayen, mailto:kay.hayen@gmail.com find license text at end of file #}

{% from 'HelperLongTools.c.j2' import declare_long_access with context %}
static {{target.getTypeDecl()}} COMPARE_{{op_code}}_{{target.getHelperCodeName()}}_{{left.getHelperCodeName()}}_{{right.getHelperCodeName()}}({{left.getVariableDecl("operand1")}}, {{right.getVariableDecl("operand2")}}) {
    {{ left.getCheckValueCode("operand1") }}
    {{ right.getCheckValueCode("operand2") }}

    {{ declare_long_access(left, "operand1") }}
    {{ declare_long_access(right, "operand2") }}

    bool r;

{% if operand == "==" %}
{% if left == right == long_desc %}
    if (operand1_long_object == operand2_long_object) {
        r = true;
    } else
{% endif %}
    if ( {{ left.getLongValueSizeExpression("operand1") }} != {{ right.getLongValueSizeExpression("operand2") }} ) {
        r = false;
    } else {
        Py_ssize_t i = {{ left.getLongValueDigitCountExpression("operand1") }};
        r = true;

        while (--i >= 0) {
            if ({{ left.getLongValueDigitExpression("operand1", "i") }} != {{ right.getLongValueDigitExpression("operand2", "i") }}) {
                r = false;
                break;
            }
        }
    }
{% elif operand == "!=" %}
{% if left == right == long_desc %}
    if (operand1_long_object == operand2_long_object) {
        r = false;
    } else
{% endif %}
    if ( {{ left.getLongValueSizeExpression("operand1") }} != {{ right.getLongValueSizeExpression("operand2") }} ) {
        r = true;
    } else {
        Py_ssize_t i = {{ left.getLongValueDigitCountExpression("operand1") }};
        r = false;
        while (--i >= 0) {
            if ({{ left.getLongValueDigitExpression("operand1", "i") }} != {{ right.getLongValueDigitExpression("operand2", "i") }}) {
                r = true;
                break;
            }
        }
    }
{% elif operand == "<=" %}
{% if left == right == long_desc %}
    if (operand1_long_object == operand2_long_object) {
        r = true;
    } else
{% endif %}
    if ( {{ left.getLongValueSizeExpression("operand1") }} != {{ right.getLongValueSizeExpression("operand2") }} ) {
        r = {{ left.getLongValueSizeExpression("operand1") }} - {{ right.getLongValueSizeExpression("operand2") }} < 0;
    } else {
        Py_ssize_t i = {{ left.getLongValueDigitCountExpression("operand1") }};
        r = true;
        while (--i >= 0) {
            if ({{ left.getLongValueDigitExpression("operand1", "i") }} != {{ right.getLongValueDigitExpression("operand2", "i") }}) {
                r = {{ left.getLongValueDigitExpression("operand1", "i") }} < {{ right.getLongValueDigitExpression("operand2", "i") }};
                if ({{ left.getLongValueIsNegativeTestExpression("operand1") }}) {
                    r = !r;
                }
                break;
            }
        }
    }
{% elif operand == ">=" %}
{% if left == right == long_desc %}
    if (operand1_long_object == operand2_long_object) {
        r = true;
    } else
{% endif %}
    if ( {{ left.getLongValueSizeExpression("operand1") }} != {{ right.getLongValueSizeExpression("operand2") }} ) {
        r = {{ left.getLongValueSizeExpression("operand1") }} - {{ right.getLongValueSizeExpression("operand2") }} > 0;
    } else {
        Py_ssize_t i = {{ left.getLongValueDigitCountExpression("operand1") }};
        r = true;
        while (--i >= 0) {
            if ({{ left.getLongValueDigitExpression("operand1", "i") }} != {{ right.getLongValueDigitExpression("operand2", "i") }}) {
                r = {{ left.getLongValueDigitExpression("operand1", "i") }} > {{ right.getLongValueDigitExpression("operand2", "i") }};
                if ({{ left.getLongValueIsNegativeTestExpression("operand1") }}) {
                    r = !r;
                }
                break;
            }
        }
    }
{% elif operand == "<" %}
{% if left == right == long_desc %}
    if (operand1_long_object == operand2_long_object) {
        r = false;
    } else
{% endif %}
    if ( {{ left.getLongValueSizeExpression("operand1") }} != {{ right.getLongValueSizeExpression("operand2") }} ) {
        r = {{ left.getLongValueSizeExpression("operand1") }} - {{ right.getLongValueSizeExpression("operand2") }} < 0;
    } else {
        Py_ssize_t i = {{ left.getLongValueDigitCountExpression("operand1") }};
        r = false;
        while (--i >= 0) {
            if ({{ left.getLongValueDigitExpression("operand1", "i") }} != {{ right.getLongValueDigitExpression("operand2", "i") }}) {
                r = {{ left.getLongValueDigitExpression("operand1", "i") }} < {{ right.getLongValueDigitExpression("operand2", "i") }};
                if ({{ left.getLongValueIsNegativeTestExpression("operand1") }}) {
                    r = !r;
                }
                break;
            }
        }
    }
{% elif operand == ">" %}
{% if left == right == long_desc %}
    if (operand1_long_object == operand2_long_object) {
        r = false;
    } else
{% endif %}
    if ( {{ left.getLongValueSizeExpression("operand1") }} != {{ right.getLongValueSizeExpression("operand2") }} ) {
        r = {{ left.getLongValueSizeExpression("operand1") }} - {{ right.getLongValueSizeExpression("operand2") }} > 0;
    } else {
        Py_ssize_t i = {{ left.getLongValueDigitCountExpression("operand1") }};
        r = false;
        while (--i >= 0) {
            if ({{ left.getLongValueDigitExpression("operand1", "i") }} != {{ right.getLongValueDigitExpression("operand2", "i") }}) {
                r = {{ left.getLongValueDigitExpression("operand1", "i") }} > {{ right.getLongValueDigitExpression("operand2", "i") }};
                if ({{ left.getLongValueIsNegativeTestExpression("operand1") }}) {
                    r = !r;
                }
                break;
            }
        }
    }
{% else %}
# error unknown operand {{operand}}
{% endif %}

    // Convert to target type.
    {{target.getTypeDecl()}} result = {{target.getToValueFromBoolExpression("r")}};
    {{target.getTakeReferenceStatement("result")}}
    return result;
}

{#     Part of "Nuitka", an optimizing Python compiler that is compatible and   #}
{#     integrates with CPython, but also works on its own.                      #}
{#                                                                              #}
{#     Licensed under the Apache License, Version 2.0 (the "License");          #}
{#     you may not use this file except in compliance with the License.         #}
{#     You may obtain a copy of the License at                                  #}
{#                                                                              #}
{#        http://www.apache.org/licenses/LICENSE-2.0                            #}
{#                                                                              #}
{#     Unless required by applicable law or agreed to in writing, software      #}
{#     distributed under the License is distributed on an "AS IS" BASIS,        #}
{#     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #}
{#     See the License for the specific language governing permissions and      #}
{#     limitations under the License.                                           #}
