{"id":19224,"date":"2024-04-15T05:36:38","date_gmt":"2024-04-15T05:36:38","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=19224"},"modified":"2024-04-15T05:36:38","modified_gmt":"2024-04-15T05:36:38","slug":"of-the-three-ways-to-pass-arguments-to-functions-only-passing-by-_____-and-passing-by-_____-allow-the-function-to-modify-the-argument-in-the-calling-program-a-reference-pointer-b-array-location-c","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/of-the-three-ways-to-pass-arguments-to-functions-only-passing-by-_____-and-passing-by-_____-allow-the-function-to-modify-the-argument-in-the-calling-program-a-reference-pointer-b-array-location-c\/","title":{"rendered":"Of the three ways to pass arguments to functions, only passing by _____ and passing by _____ allow the function to modify the argument in the calling program A. reference, pointer B. array, location C. array, pointer D. None of the above"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6abcf6032a92d\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    reference, pointer                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    array, location                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    array, pointer                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    None of the above                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is: A. reference, pointer.<\/p>\n<p>When a function is called, the arguments are passed to the function in a way that depends on the type of the argument. For value types, the argument is copied to the function&#8217;s stack frame. For reference types, the reference to the argument is passed to the function. For pointer types, the pointer to the argument is passed to the function.<\/p>\n<p>The function can modify the argument in the calling program only if the argument is passed by reference or by pointer. If the argument is passed by value, the function cannot modify the argument in the calling program.<\/p>\n<p>Here is an example of passing an argument by value:<\/p>\n<p>&#8220;`c++<br \/>\nvoid foo(int x) {<br \/>\n  x = <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> 10; \/\/ This changes the value of x in the function, but not in the calling program.<br \/>\n}<\/p>\n<p>int main() {<br \/>\n  int x = 5;<br \/>\n  foo(x);<br \/>\n  \/\/ x is still 5 in main().<br \/>\n}<br \/>\n&#8220;`<\/p>\n<p>Here is an example of passing an argument by reference:<\/p>\n<p>&#8220;`c++<br \/>\nvoid foo(int&amp; x) {<br \/>\n  x = 10; \/\/ This changes the value of x in the calling program.<br \/>\n}<\/p>\n<p>int main() {<br \/>\n  int x = 5;<br \/>\n  foo(x);<br \/>\n  \/\/ x is now 10 in main().<br \/>\n}<br \/>\n&#8220;`<\/p>\n<p>Here <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> is an example of passing an argument by pointer:<\/p>\n<p>&#8220;`c++<br \/>\nvoid foo(int<em> x) {<br \/>\n  <\/em>x = 10; \/\/ This changes the value of the object pointed to by x in the calling program.<br \/>\n}<\/p>\n<p>int main() {<br \/>\n  int x = 5;<br \/>\n  foo(&amp;x);<br \/>\n  \/\/ x is now 10 in main().<br \/>\n}<br \/>\n&#8220;`<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[683],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Of the three ways to pass arguments to functions, only passing by _____ and passing by _____ allow the function to modify the argument in the calling program A. reference, pointer B. array, location C. array, pointer D. 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