Conditional Expressions

The value of x is @x@
The value of y is @y@
The value of n is @n@
The value of bool_t_p is @bool_t_p@
The value of bool_1_p is @bool_1_p@
The value of bool_f_p is @bool_f_p@
The value of bool_0_p is @bool_0_p@

Operator Test Result

eq if \@x\@ eq 5 X is 5X is not 5

eq if \@x\@ eq 6 X is 6X is not 6

eq if \@n\@ eq "Fred's Flute" N is "Fred's Flute" N is not "Fred's Flute"

eq if \@n\@ eq "Fred" N is "Fred" N is not "Fred"

defined if \@x\@ defined x is defined x is undefined

nil if \@x\@ nil x is nil x is nonnil

defined if \@z\@ defined z is defined z is undefined

nil if \@z\@ nil z is nil z is nonnil

defined if \@w\@ defined w is defined w is undefined

nil if \@w\@ nil w is nil w is nonnil

nil if \@w\@ nil w is nil w is nonnil

true if \@bool_t_p\@ true ok not ok

true if \@bool_1_p\@ true ok not ok

true short if \@bool_t_p\@ ok not ok

true short if \@bool_1_p\@ ok not ok

false if \@bool_f_p\@ false ok not ok

false if \@bool_0_p\@ false ok not ok

Operator	Test	Result
`eq`	`if \@x\@ eq 5`	X is 5X is not 5
`eq`	`if \@x\@ eq 6`	X is 6X is not 6
`eq`	`if \@n\@ eq "Fred's Flute"`	N is "Fred's Flute" N is not "Fred's Flute"
`eq`	`if \@n\@ eq "Fred"`	N is "Fred" N is not "Fred"
`defined`	`if \@x\@ defined`	x is defined x is undefined
`nil`	`if \@x\@ nil`	x is nil x is nonnil
`defined`	`if \@z\@ defined`	z is defined z is undefined
`nil`	`if \@z\@ nil`	z is nil z is nonnil
`defined`	`if \@w\@ defined`	w is defined w is undefined
`nil`	`if \@w\@ nil`	w is nil w is nonnil
`nil`	`if \@w\@ nil`	w is nil w is nonnil
`true`	`if \@bool_t_p\@ true`	ok not ok
`true`	`if \@bool_1_p\@ true`	ok not ok
`true short`	`if \@bool_t_p\@`	ok not ok
`true short`	`if \@bool_1_p\@`	ok not ok
`false`	`if \@bool_f_p\@ false`	ok not ok
`false`	`if \@bool_0_p\@ false`	ok not ok