C program to perform input output of all basic data types
C Programming Language Data Types in C Language (Article) Data Types in C Language (Program)
3977Program:
/** * C program to demonstrate input output of primitive data types */ #include"stdio.h" int main() { /* * Declare all primitive and derived types */ char charVal; unsigned char uCharVal; short shortVal; unsigned short uShortVal; int intVal; unsigned int uIntVal; long longVal; unsigned long uLongVal; long long longLongVal; unsigned long long uLongLongVal; float floatVal; double doubleVal; long double longDoubleVal; /* * Read input in each type */ printf("Enter a character: "); charVal = getchar(); getchar(); // <-- Dummy getchar() to capture enter printf("Enter another character: "); uCharVal = getchar(); getchar(); // <-- Dummy getchar() to capture enter printf("Enter a signed short value: "); scanf("%hi", &shortVal); printf("Enter an unsigned short value: "); scanf("%hu", &uShortVal); printf("Enter an signed integer value: "); scanf("%d", &intVal); printf("Enter an unsigned integer value: "); scanf("%lu", &uIntVal); printf("Enter a signed long value: "); scanf("%ld", &longVal); printf("Enter an unsigned long value: "); scanf("%lu", &uLongVal); printf("Enter a signed long long value: "); scanf("%lld", &longLongVal); printf("Enter an unsigned long long value: "); scanf("%llu", &uLongLongVal); printf("Enter a float value: "); scanf("%f", &floatVal); printf("Enter a double value: "); scanf("%lf", &doubleVal); printf("Enter a long double value: "); scanf("%Lf", &longDoubleVal); /* * Print the value of all variable */ printf("\nYou entered character: '%c' \n", charVal); printf("You entered unsigned character: '%c' \n\n", uCharVal); printf("You entered signed short: %hi \n", shortVal); printf("You entered unsigned short: %hu \n\n", uShortVal); printf("You entered signed int: %d \n", intVal); printf("You entered unsigned int: %lu \n\n", uIntVal); printf("You entered signed long: %ld \n", longVal); printf("You entered unsigned long: %lu \n\n", uLongVal); printf("You entered signed long long: %lld \n", longLongVal); printf("You entered unsigned long long: %llu \n\n", uLongLongVal); printf("You entered float: %f \n", floatVal); printf("You entered double: %lf \n", doubleVal); printf("You entered long double: %Lf \n", longDoubleVal); return 0; }
Output:
Enter a character: C Enter another character: P Enter a signed short value: -32768 Enter an unsigned short value: 65535 Enter an signed integer value: -2147483648 Enter an unsigned integer value: 4294967295 Enter a signed long value: -2147483648 Enter an unsigned long value: 4294967295 Enter a signed long long value: -9223372036854775808 Enter an unsigned long long value: 18446744073709551615 Enter a float value: 1.28766 Enter a double value: 10.915074 Enter a long double value: 100.12345 You entered character: 'C' You entered unsigned character: 'P' You entered signed short: -32768 You entered unsigned short: 65535 You entered signed int: -2147483648 You entered unsigned int: 4294967295 You entered signed long: -2147483648 You entered unsigned long: 4294967295 You entered signed long long: -9223372036854775808 You entered unsigned long long: 18446744073709551615 You entered float: 1.287660 You entered double: 10.915074 You entered long double: 100.
Explanation:
Points to note:
\n
is an escape sequence character used to print new line (move to next line).- The
getchar()
function reads single character and stores to some character variable. During a character input suppose we input C and then enter which is also considered as a character. Internally,getchar()
reads and stores C character to charVal and tries to store the enter character to uCharVal. This is because I have used an extragetchar()
to eliminate the enter character.
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