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Standard Library Functions - C Programming MCQ Questions and Answers

Learn competitive and Technical Aptitude C programming mcq questions and answers on Standard Library Functions with easy and logical explanations. Page-2 section-2

Each section contains 100 MCQs on Standard Library Functions .
11
The sig argument specifies the signal, which may be any signal except . . . . . . . . and . . . . . . . .
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Answer & Solution
Answer: Option B
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12
Which function is called repeatedly by bsearch() to compare search elements against the elements in the array?
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Answer: Option C
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13
Which of the following format specifiers is used to represent the hours in the 24 hour clock (0-23) format?
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Answer: Option B
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14
Which of the following macros is not defined?
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Answer & Solution
Answer: Option A
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15
How many times can the macro setjmp() return?
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Answer: Option B
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16
What will be the output of the following C code?
char str[]; 
strcpy(str, "Hello"); 
res = atof(str);
printf("String value = %s, Float value = %f\n", str, res);
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Answer: Option A
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17
The header file stdarg.h defines a variable type . . . . . . . .
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Answer: Option A
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18
Which of the following is the correct description of EXIT_FAILURE?
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Answer: Option A
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19
. . . . . . . . variable type defined in the header stdlib.h is an integer type of the size of a wide character constant.
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Answer: Option B
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20
What will be the output of the following C code?
#include <assert.h> 
#include <stdio.h>  
void main() 
{ 
   int n=12; 
   char str[50]="";
   assert(n >= 10); 
   printf(" output: %d\n", n); 
   assert(str != NULL); 
   printf("output: %s\n", str); 
}
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Answer: Option C
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