C Language MCQ - English
Which of the following is not a valid variable name declaration?
float PI = 3.14;
double PI = 3.14;
int PI = 3.14;
#define PI 3.14
Answer : D
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1) Which of the following is not a valid C variable name?
2) In case of ordinary int variables:
The leftmost bit is reserved for sign
The rightmost bit is reserved for sign
No bit is reserved for sign
None of the above
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3) The declaration "unsigned u" indicates:
4) What is the problem in following variable declaration?
float 3Bedroom-Hall-Kitchen?;
The variable name begins with an integer
The special character ‘-‘
The special character ‘?’
All of the mentioned
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5) Variable names beginning with underscore is not encouraged. Why?
It is not standardized
To avoid conflicts since assemblers and loaders use such names
To avoid conflicts since library routines use such names
To avoid conflicts with environment variables of an operating system
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