Standard Library Functions - Study Mode

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[#156] void free(void *ptr) deallocates the memory previously allocated by a call to . . . . . . . . , . . . . . . . . or . . . . . . . .

(A) malloc,getenv,abort

(B) calloc,malloc,exit

(C) calloc,malloc,realloc

(D) exit,getenv,abort

Correct Answer

(C) calloc,malloc,realloc

[#157] What is returned by the function if the space cannot be allocated by the function malloc(), realloc() and calloc()?

(A) value

(B) error

(C) null pointer

(D) no value

Correct Answer

(C) null pointer

[#158] RAND_MAX macro is the maximum value returned by the rand function.

(A) true

(B) false

Correct Answer

(A) true

[#159] Which function returns the arc sine in the range [-pi/2, +pi/2] radians?

(A) arcsin()

(B) asin()

(C) sin()

(D) asine()

Correct Answer

(B) asin()

[#160] If the result underflow, the function returns zero.

(A) true

(B) false

Correct Answer

(A) true