View Compilation Error

155313_0_1405.c: In function `cmp2':
155313_0_1405.c:4: error: `p' undeclared (first use in this function)
155313_0_1405.c:4: error: (Each undeclared identifier is reported only once
155313_0_1405.c:4: error: for each function it appears in.)
155313_0_1405.c:4: error: syntax error before ')' token
155313_0_1405.c:4: error: syntax error before ')' token
155313_0_1405.c:4: error: syntax error before ')' token
155313_0_1405.c:4: error: syntax error before ')' token
155313_0_1405.c:4: error: syntax error before ')' token
155313_0_1405.c:4: error: syntax error before ')' token
155313_0_1405.c: In function `main':
155313_0_1405.c:11: error: syntax error before '/' token
155313_0_1405.c:21: error: `a' undeclared (first use in this function)
155313_0_1405.c:23: error: `cmp1' undeclared (first use in this function)