View Compilation Error

162702_0_13885.c:2: error: syntax error before '[' token
162702_0_13885.c: In function `fun':
162702_0_13885.c:7: error: `str1' undeclared (first use in this function)
162702_0_13885.c:7: error: (Each undeclared identifier is reported only once
162702_0_13885.c:7: error: for each function it appears in.)
162702_0_13885.c:7: error: `str' undeclared (first use in this function)