View Compilation Error

0_0_1878385_28667.c:3: error: syntax error before "map"
0_0_1878385_28667.c: In function `main':
0_0_1878385_28667.c:23: error: `true' undeclared (first use in this function)
0_0_1878385_28667.c:23: error: (Each undeclared identifier is reported only once
0_0_1878385_28667.c:23: error: for each function it appears in.)