Tornado

Tornado 2.0
User’s Guide
Table 5-9
Shell C Interpreter Data-Type Assumptions
Element
variable
variable used as floating-point
return value of subroutine
constant with no decimal point
constant with decimal point
Data Type
int
double
int
int/long
double
Table 5-10
Data Types in the Shell C Interpreter
Type Bytes Set Variable Display Variable
int 4 x = 99 x
(int) x
long 4 x = 33
x = (long)33
x
(long) x
short 2 x = (short)20 (short) x
char 1 x = 'A'
x = (char)65
x = (char)0x41
double 8 x = 11.2
x = (double)11.2
(char) x
(double) x
float 4 x = (float)5.42 (float) x
Strings, or character arrays, are not treated as separate types in the shell C
interpreter. To declare a string, set a variable to a string value. 3 For example:
-> ss = "shoe bee doo"
The variable ss is a pointer to the string shoe bee doo. To display ss, enter:
-> d ss
The d( ) command displays memory where ss is pointing. 4 You can also use
printf( ) to display strings.
3. Memory allocated for string constants is never freed by the shell. See 5.3.8 Strings, p.183 for
more information.
4. d( ) is one of the WindSh commands, implemented in Tcl and executing on the host.
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