Answer / manoj

By using EXTRN.
Example:
File 1:

int GlobalVariable; // implicit definition
void SomeFunction(); // function prototype
(declaration)

int main() {
GlobalVariable = 1;
SomeFunction();
return 0;
}

File 2:

extern int GlobalVariable; // explicit declaration

void SomeFunction() { // function header (definition)
++GlobalVariable;
}

Write the following function in C. stripos — Find position of first occurrence of a case- insensitive string int stripos ( char* haystack, char* needle, int offset ) Returns the numeric position of the first occurrence of needle in the haystack string. Note that the needle may be a string of one or more characters. If needle is not found, stripos() will return - 1. The function should not make use of any C library function calls.

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how to find sum of digits in C?

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