Consider the following multi-threaded C code. 1: void send money (acct * src, acct * dst, int amount) { 2: lock (& src -> mutex); 3: if (src -> value >= amount) { 4: src -> value -= amount; 5: lock (& dst -> mutex); 6: dst -> value += amount ; 7: unlock (& dst -> mutex); 8:} 9: unlock (& src -> mutex); 10: } 13 (a) Describe any bug(s) you see along with the line number. You need to justify your answer (b) Now revise the code to fix the bug. (if need to write the entire code with the change)
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- PROGRAMMING LANGUAGE: C++ How do we differentiate between prefix and postfix increment operator while overloading them?Based on the following C code: { int x, y, z, sum, total; int *pt1, *pt2, *ptc; x = 99; y = 86; pt1 = &y; pt2 = pt1; ptc = &x; z = (*(&y))/2 + (*pt2)/3 + 5; sum = (x + y + *pt1 + *pt2 + z)/3; total = sum + *ptc + *pt1; } (1) What is the value of z? (2) What is the value of sum? (3) What is the value of the total? (4) What is the address of the data 86?What is the meaning of a dangling pointer?
- Debug C language main() { int num, rem, reverse_num, temp, start = 70, end = 100; for(num=start;num=end;num--) { temp=num; reversenum=0; while(temp) { rem=temp%10; temp==temp/10; reverse_num=reverse_num*10+rem; } if(num=reverse_num) printf("%c ",num); } }Siyazama High School Grade Management The Siyazama High School principal approached you for your C++ programming expertise. They want a software solution for their teachers who manage student marks. The teachers record the student’s name and surname, the continuous assessment mark out of a 100 and the final term mark out of 100. They then always work with their class lists to analyse and review the students’ performance.Source: Mlotshwa, M. (2021) Question 5 Write a C++ program that will: Accept student’s information into three parallel arrays. The capture of the students’ marks must be a sentinel-controlled mark that is below zero for either the continuous assessment (term) mark or the final mark. Use a sentinel-controlled loop that will exit when the user types in the word ’Done’ instead of a student’s name. For each mark, use a function: int validateData(string,int) that receives a message to be displayed to the user in case the mark is not acceptable, and also the captured…Siyazama High School Grade Management The Siyazama High School principal approached you for your C++ programming expertise. They want a software solution for their teachers who manage student marks. The teachers record the student's name and surname, the continuous assessment mark out of a 100 and the final term mark out of 100. They then always work with their class lists to analyse and review the students' performance. Source: Mlotshwa, M. (2021) Question 5 Write a C++ program that will: 5.1 Accept student's information into three parallel arrays. The capture of the students' marks must be a sentinel-controlled mark that is below zero for either the continuous assessment (term) mark or the final mark. Use a sentinel-controlled loop that will exit when the user types in the word 'Done' instead of a student's name. For each mark, use a function: int validateData(string,int) that receives a message to be displayed to the user in case the mark is not acceptable, and also the captured…
- Using a pointer as the return value is considered a poor practise in C. For example, how does dynamic memory allow us to return an object pointer from a function safely?c++ programing Sample Testcase 0: Input: (-2) Output: Negative input Sample Testcase 1: Input: 0 Output: Zero size matrix Sample Testcase 2: Input 3 2 Output: Wrong entry Sample Testcase 3: Input 3 0 1 2 3 4 5 6 7 8 9 Output: 11 Sample Testcase 4: Input 3 1 1 2 3 4 5 6 7 8 9 Output: 19 #include <iostream> #include <cmath> using namespace std; int main() { int s, region; cin>>s>>region; int MAT[s][s]; //Start your code Here return 0; } Siyazama High School Grade Management The Siyazama High School principal approached you for your C++ Programming expertise. They want a software solution for their teachers who manage student marks. The teachers record the student’s name and surname, the continuous assessment mark out of a 100 and the final term mark out of a 100. They then always search for information such as the best or worst performer per mark (continuous or term) and sometimes they search for a particular student’s marks. Write a C++ program that will allow the teachers to do the following: Capture the student performance record in a sentinel-controlled loop and store the results in three parallel arrays. The information to be stored in the three arrays is the student’s full name, continuous assessment mark, and final mark. If the lecturer types the word ‘Done’ instead of a full name, the loop should immediately stop even before capturing any marks. Search the array for the student’s full name and then…
- Write Implicit and Explicit code blocksOperator overloading is extremely common in PL since + works differently for ints and floats and it is also common for programming languages to allow the developer to overload operators very uncommon in programming languages but some languages allow the programmer to overload all operators very uncommon in programming languages extremely common in PL since + works differently for ints and floats but it is uncommon for programming languages to allow the developer to overload operatorsUse the C programming language, not C++. #include “driverlib.h” #include <stdint.h> #include <stdbool.h> #define MAXCOUNT 500 Bool isPrime(uint16_t x); // Main Function Void main(void){ volatile uint16_t ii; // declare local loop variable // Halt the WDT and unlock PMM for Port I/O Configuration WDT_A_hold(WDT_A_BASE); PMM_unlockLPM5(); //Set P1.0 (RED LED) as Output GPIO_setAsOutputPin(GPIO_PORT_P1, GPIO_PIN0); //Set P1.0 (RED LED) Low -- Turns RED LED OFF GPIO_setOutputLowOnPin(GPIO_PORT_P1, GPIO_PIN0); for(ii=0; ii<MAXCOUNT; ii++){ if(isPrime(ii)) GPIO_toggleOutputOnPin(GPIO_PORT_P1, GPIO_PIN0); } while(1); // Spin Loop } // Function isPrime // Input x -- number to check if prime // Returns: True, if x is prime else FALSE // Bool isPrime(uint16_t x){ volatile uint16_t ii; uint16_t maxValue; if((x==0) || (x==1)) return false; if((x==2) || (x==3)) return true; maxValue = (x/2) +…