What does the c preprocessor do?
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What is difference between structure and union in c programming?
How can I dynamically allocate arrays?
write a C program: To search a file any word which starts with ?a?. If the word following this ?a? starts with a vowel.Then replace this ?a? with ?a? with ?an?. redirect with the output onto an output file.The source file and destination file are specified by the user int the command line.
How many identifiers are there in c?
Struct(s) { int a; long b; } Union (u) {int a; long b; } Print sizeof(s)and sizeof(u) if sizeof(int)=4 and sizeof(long)=4
const char * char * const What is the differnce between the above tow?.
Why functions are used in c?
int main() { int i=1; switch(i) { case '1': printf("hello"); break; case 1: printf("Hi"); break; case 49: printf("Good Morning"); break; } return 0; }
What are the preprocessors?
accept character from keyboard untill the user presses the enter key.If the user enters any character other than upper case(A-Z)alphabets program should stop taking any input
Why do we use pointer to pointer in c?
True or false: If you continuously increment a variable, it will become negative? 1) True 2) False 3) It depends on the variable type