C++ Syntax Question: Download Questions PDF
Explain what are the Sizes and ranges of the Basic C++ data types?
Answer:
Following table is with respect to a 16-bit word machine:
Type Bytes Range
char 1 -128 to 127
unsigned char 1 0 to 255
signed char 1 -128 to 127
int 2 -32768 to 32767
unsigned int 2 0 to 65535
signed int 2 2 -32768 to 32767
short int 2 2 -32768 to 32767
unsigned short int 2 0 to 65535
signed short int 2 -32768 to 32767
long int 4 4 -2147483648 to 2147483647
signed long int 4 -2147483648 to 2147483647
unsigned long int 4 0 to 4294967295
float 4 4 3.4E-38 to 3.4E+38
double 8 8 1.7E-308 to 1.7E+308
long double 10 3.4E-4932 to 1.1E+4932
Type Bytes Range
char 1 -128 to 127
unsigned char 1 0 to 255
signed char 1 -128 to 127
int 2 -32768 to 32767
unsigned int 2 0 to 65535
signed int 2 2 -32768 to 32767
short int 2 2 -32768 to 32767
unsigned short int 2 0 to 65535
signed short int 2 -32768 to 32767
long int 4 4 -2147483648 to 2147483647
signed long int 4 -2147483648 to 2147483647
unsigned long int 4 0 to 4294967295
float 4 4 3.4E-38 to 3.4E+38
double 8 8 1.7E-308 to 1.7E+308
long double 10 3.4E-4932 to 1.1E+4932
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