C language capture error mechanism

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C language capture error mechanism [Copy link]

There are generally several ways to handle exceptions in C language: 1. Use the standard C library to provide two functions, abort() and exit(), which can forcibly terminate the program.2. Use the assert macro call, located in the header fileIn the program, when an error occurs, an abort() is triggered. 3. Use the errno global variable, which is provided by the C runtime library function and is located in the header file4. Use goto statement to jump when an error occurs. 5. Use setjmp and longjmp for exception handling. Here is an example of exit method. 1 #include2 #include 3 double diva(double num1,double num2) //Two number division function 4 { 5 double re; 6 re=num1/num2; 7 return re; 8 } 9 int main() 10 { 11 double a,b,result; 12 printf("Please enter the first number: "); 13 scanf("%lf",&a); 14 printf("Please enter the second number: "); 15 scanf("%lf",&b); 16 if(0==b) //If the divisor is 0, terminate the program 17 exit(EXIT_FAILURE); 18 result=diva(a,b); 19 printf("The result of the division is: %.2lf\n",result); 20 return 0; 21 }