Day#25 'C' Coding Challenge

What is the output of the below code?

#include<stdio.h> int var1 = 5; void main() { printf("%f, %d , %o, %u", var1); }

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The above tests below scenarios:

1. Format specifier

2. What if there are more than one format specifiers in the printf and only one variable

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format specifier helps the compiler to understand the type of variable

In the code,%f, %o, %u are used

%f - float

%o - octal

%u - unsigned int

%d - signed integer

However, there is only 1 variable which is var1 and compiler treats it as %f and prints 5.00000

The others print an undefined variable as no variable is associated to them.

To get correct values printf statement must be

printf("%f, %d , %o, %u", var1, var1, var1, var1);