Consider the below two programs:
Output in C:
redeclaration of ‘x’ with no linkage
Output in C:
In C, the first program fails in compilation, but second program works fine. In C++, both programs fail in compilation.
C allows a global variable to be declared again when first declaration doesn’t initialize the variable.
The below program fails in both C also as the global variable is initialized in first declaration itself.
error: redefinition of ‘x’
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