Page Title

Basic Combined programming Language

BCPL ("Basic Combined Programming Language")is a procedural, imperative, and structured computer programming language. Originally intended for writing compilers for other languages, BCPL is no longer in common use. However, its influence is still felt because a stripped down and syntactically changed version of BCPL, called B, was the language on which the C programming language was based. BCPL introduced several features of modern programming languages, including using curly braces to delimit code blocks [3] and compilation via virtual machinebyte code.
Language Born in 1967

Print factorials:

GET "LIBHDR"
LET START() = VALOF $( FOR I = 1 TO 5 DO
WRITEF("%N! = %I4*N", I, FACT(I))
RESULTIS 0 $) AND FACT(N) = N = 0 -> 1, N * FACT(N - 1)

Count solutions to the N queens problem:

GET "LIBHDR"
GLOBAL $( COUNT: 200 ALL: 201 $)
LET TRY(LD, ROW, RD) BE TEST ROW = ALL THEN COUNT := COUNT + 1 ELSE $( LET POSS = ALL & ~(LD | ROW | RD)
UNTIL POSS = 0 DO $( LET P = POSS & -POSS POSS := POSS - P TRY(LD + P << 1, ROW + P, RD + P >> 1) $) $)
LET START() = VALOF $( ALL := 1 FOR I = 1 TO 12 DO $( COUNT := 0 TRY(0, 0, 0)
WRITEF("%I2-QUEENS PROBLEM HAS %I5 SOLUTIONS*N", I, COUNT)
ALL := 2 * ALL + 1 $) RESULTIS 0 $)