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It is standard on functions to provide some indication that the function has succeeded in its operation. Consider the Scanf function:
scanf("%d",&number1); If the function does indeed get a integer from the keyboard then everything is okay, but what happens if the user types in a char or float etc. The program might crash, it is common to write functions which never crash but return an error code. On the function scanf, the full prototype is
int scanf("format",&variables); The int is used to provide details of correct operation i.e. number of values input or '-1' error . We can use this in programs to trap errors and repeat functions etc. The appended ANSI library shows full prototypes and meaning of return values from functions.
it is a class enclosed in the scope of another class. For illustration: // Example: Nested class // class OuterClass { class NestedClass { // ... }; // .
Write a program consisting of two functions (plus main). The first function should read in a number and then pass this back to main. This value should then be passed into a secon
Define a structure in C++: Write a program a structure in c++ program. void main() { struct player { char name[2
Define some Important Point for bit fields with structures? Only n lower bits will be assigned to an n bit number thus type cannot take values larger than 15 (4 bits long)
Write a program to calculate the total resistance of a series or parallel circuit. The maximum number of resistors is two. We need to decide whether the user wants the to
TO CONVERT A NUMBER OR A DIGIT INTO ALPHABET
What are pre-processor directives? - Pre-processor directives are placed at the beginning of a C program. They begin with # symbol. - This is the place, where library files
Program is to create a file student.dat: Program is to create a file student.dat which contains all name, roll_no,marks(5 sub) and percentage class student {
#questio#A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concate
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