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Topic: conditional statement
topics >
computer science >
programming >
program control >
conditional expression
Topic:
control returning functions and expressions
Topic:
failure returning functions and expressions
Topic:
object and value equivalence
Topic:
else clause
Topic:
temporal relationships
Summary
Conditionals are variables and operators used as guards. The simplest conditional statement is "if B then Statement" where B is a conditional. Conditionals may be boolean variables, equality test, or order relationships. More complicated conditionals are less frequently used. These include attribute test, boolean operators, and special conditionals like 'if any two are true then...' or 'if can suspend process P then ...'. (cbb 5/80)
Subtopic: conditionals as goto
Quote: is there a workable gestural indication for conditional branching? if..then..else works well [»diseAA_1986]
Subtopic: short-circuit evaluation
Note: define conditional statements from conditional gotos using a Branch argument [»cbb_2000, OK] Note: a branch parameter is a code offset into an activation record [»cbb_2000, OK]
Subtopic: other conditionals
Quote: C's && and || operators guarantee left-to-right, short-circuit evaluation; their predictable behavior is frequently used [»ritcDM7_1978c]
QuoteRef: reynCF11_1971 ;;329 means for "if 2 of the following 4 are true then QuoteRef: sammJE_1969 ;;429 can test for logical subscripts (unordered) Quote: would like predicates to test if an action is possible; e.g., 'if can suspend process p ...' [»thimH2_1980] QuoteRef: farbDJ1_1964 ;;26 gotos by /(label) f(label) s(label) for always, failure, success
Topic: conditional expression (11 items)
Topic: control returning functions and expressions (6 items)
Topic: failure returning functions and expressions (24 items)
Topic: object and value equivalence (60 items)
Topic: else clause (11 items)
Topic: temporal relationships
(40 items)