View Compilation Error

0_0_31948591_23649.c: In function 'main':
0_0_31948591_23649.c:13:11: error: 'true' undeclared (first use in this function)
    while (true) {
           ^
0_0_31948591_23649.c:13:11: note: each undeclared identifier is reported only once for each function it appears in