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goto : FOLDOC
goto
(Or "GOTO", "go to", "GO TO", "JUMP", "JMP") A construct and keyword found in several higher-level programming languages (e.g. Fortran, COBOL, BASIC, C) to cause an {unconditional jump} or transfer of control from one point in a program to another. The destination of the jump is usually indicated by a label following the GOTO keyword.
In some languages, a label is a line number, in which case every statement may be labelled, in others a label is an optional alphanumeric identifier.
Use of the GOTO instruction in high-level language programming fell into disrepute with the development and general acceptance of structured programming, and especially following the famous article "GOTO statement considered harmful". Since a GOTO is effectively an assignment to the program counter, it is tempting to make the generalisation "assignment considered harmful" and indeed, this is the basis of functional programming.


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