cobol-java-v3/benchmark-programs/12-divide-100

12-divide-100 — 100-Division File Splitter

电信业务场景

CDR数据100分割。将CDR数据按100件一个批处理单位进行分割，供后续系统处理。

Demonstrates dividing input records into groups of 100:

• PERFORM VARYING counter: Track record numbers across the loop
• DIVIDE ... GIVING REMAINDER: Calculate file number from record count
• Close-write cycle: Close old file, open new file at each boundary
• Tested at boundary conditions: 100 (exact), 101 (one extra), 99 (one short)

Files

File	Purpose
main-12-divide-100.cbl	COBOL program (fixed format)
data-gen.sh	Generate N test records (default 101)
run.sh	Compile + run 3 test cases

Algorithm

DIVIDE record-count BY 100 GIVING Q REMAINDER R
IF R = 1 → open new FILE-OUT-NN
Write record to current file

Output Files

• FILE-OUT-01.DAT: records 1-100
• FILE-OUT-02.DAT: records 101-200
• etc.