其餘

Collects remaining parameters, operands, or extracted fields.

Aliases: rest

Syntax: 其餘 <type> <name>

Category#

function

Related#

• 函式
• 操作數
• 取自

Examples#

radix/corpus/ceteri/ceteri.fab (canonical · keyword)#

Collects remaining parameters, operands, or extracted fields.

# =============================================================================
# 其餘 — Collects remaining parameters, operands, or extracted fields.
# =============================================================================
#
# What this teaches:
#   • Rest parameters — `其餘 <type> <name>` in a function signature collects
#     all remaining arguments into a list
#   • Variadic functions — `其餘 列表<整數> numeri` enables summing an
#     arbitrary number of numeric arguments
#
# Common mistakes:
#   • confusing `其餘` (rest parameter collecting remaining args into a list) with `空集` (an empty collection initializer)
#
# See also: 函式, 操作數, 取自
# =============================================================================

# 其餘 — rest parameter (collects remaining arguments)
#
# 函式 <名稱>(其餘 <型別> <名稱>) → <型別>
#
# GRAMMAR:
#   param :← '其餘' type ident
#
# EXPECTED OUTPUT:
#   none

fn 求和(rest list<int> numeri) → int {
    var _ total ← 0

    for from numeri const n {
        total ← total + n
    }

    return total
}

main {
    # 其餘 receives the whole 列表
    print 求和([1, 2, 3, 4])
}

Expected output:

10