together in , , and other control statements.

Examples

In the early days of computing, many languages such as FORTRAN IV and BASIC lacked block syntax except sometimes for rudimentary loop constructs. A conditional was encoded using the goto statement. In the following FORTRAN 66 code, the logical structure is less than clear due to the lack of blocks.

C INITIALIZE VALUES TO BE CALCULATED PAYSTX = .FALSE. PAYSST = .FALSE. TAX = 0.0 SUPTAX = 0.0C SKIP TAX DEDUCTION IF EMPLOYEE EARNS LESS THAN TAX THRESHOLD IF (WAGES .LE. TAXTHR) GOTO 100 PAYSTX = .TRUE. TAX = (WAGES - TAXTHR) * BASCRTC SKIP SUPERTAX DEDUCTION IF EMPLOYEE EARNS LESS THAN SUPERTAX THRESHOLD IF (WAGES .LE. SUPTHR) GOTO 100 PAYSST = .TRUE. SUPTAX = (WAGES - SUPTHR) * SUPRAT 100 TAXED = WAGES - TAX - SUPTAX

1.Previous
3.Next