Compiler output
prog.c:1:1: warning: data definition has no type or storage class [enabled by default]
prog.c:1:1: warning: type defaults to ‘int’ in declaration of ‘a’ [enabled by default]
prog.c:1:4: warning: type defaults to ‘int’ in declaration of ‘b’ [enabled by default]
prog.c:1:1: warning: implicit declaration of function ‘map’ [-Wimplicit-function-declaration]
prog.c:1:12: error: expected expression before ‘int’
prog.c:2:1: error: expected ‘,’ or ‘;’ before ‘print’
