Question
Standard C library functions will always invoke a system
call when executed from a single-threaded process in a UNIX/Linux operating system?Solution
exit C library functions - Terminates the process normally, performing the regular cleanup for terminating programs. malloc - This is a function defined in standard C library and it does not always invoke the system call. When a process is created, certain amount of heap memory is already allocated to it, when required to expand or shrink that memory, it internally uses sbrk/brk system call on Unix/Linux. sleep - This is not even standard C library function, it is a POSIX standard c library function which always invokes the system call.
Statement: A ≥ B ≥ C = D > E, F > G = H ≤ CÂ
Conclusion: I. C ≥ F                         II. F > D
...Statements: Q % R & L @ T $ D; W % Q # P
Conclusions :Â Â Â Â Â I. D % RÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â II. Q % LÂ Â Â Â Â Â Â Â Â Â Â Â Â Â I...
Statement: F ≥ G > I > E ≤ P, E = S ≥ PÂ
Conclusion: I. F ≥ P         II. G > P
Statements: R > U ≤ V = W ≥ S; T < M ≤ P = S
Conclusions:
I. V ≥ M
II. P < V
III. W ≥ T
In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is /are definitely true and t...
Statement: L ≥ X ≤ Z > Y ≤ A, Y = B ≥ CÂ
Conclusion: I. C >A          II. A ≥ C
Statement: X=Y≤Z>T; T>Q ; X ≥R
I. Z≥R
II. R>Q
Statements: U ≤ T < V; W < V; S = T < R; X < W = Y < Z
Conclusions:
I. R > U
II. X < S
III. T < Z
Statements: H ≥ R, T < L, R ≥ T, L < N > I
Conclusion:
I. R > I
II. N ≥ T
Statements:
C > D ≥ E ≤ F; Y ≥ Z ≥ A = C
Conclusion:
I. Y > F
II. F ≥ Y
