View Compilation Error

0_0_4673558_9415.c:14: error: syntax error before "in"
0_0_4673558_9415.c: In function `spfa':
0_0_4673558_9415.c:64: error: `false' undeclared (first use in this function)
0_0_4673558_9415.c:64: error: (Each undeclared identifier is reported only once
0_0_4673558_9415.c:64: error: for each function it appears in.)
0_0_4673558_9415.c:68: error: `true' undeclared (first use in this function)