Revision 2b1c2a0f7dddb0cfce6c574ff249d4e3bc9a6869 authored by Greg Peairs on 14 February 2017, 02:13:51 UTC, committed by Andreas Noack on 14 February 2017, 02:13:51 UTC
* Fix real Hermitian inverse error * Test inverse of real Hermitian and Symmetric matrix constructed from an asymmetric matrix
1 parent 021e11e
meta.jl
# This file is a part of Julia. License is MIT: http://julialang.org/license
module Meta
#
# convenience functions for metaprogramming
#
export quot,
isexpr,
show_sexpr
quot(ex) = Expr(:quote, ex)
isexpr(ex::Expr, head) = ex.head === head
isexpr(ex::Expr, heads::Set) = in(ex.head, heads)
isexpr(ex::Expr, heads::Vector) = in(ex.head, heads)
isexpr(ex, head) = false
isexpr(ex, head, n::Int) = isexpr(ex, head) && length(ex.args) == n
# ---- show_sexpr: print an AST as an S-expression ----
show_sexpr(ex) = show_sexpr(STDOUT, ex)
show_sexpr(io::IO, ex) = show_sexpr(io, ex, 0)
show_sexpr(io::IO, ex, indent::Int) = show(io, ex)
const sexpr_indent_width = 2
function show_sexpr(io::IO, ex::QuoteNode, indent::Int)
inner = indent + sexpr_indent_width
print(io, "(:quote, #QuoteNode\n", " "^inner)
show_sexpr(io, ex.value, inner)
print(io, '\n', " "^indent, ')')
end
function show_sexpr(io::IO, ex::Expr, indent::Int)
inner = indent + sexpr_indent_width
print(io, '(')
show_sexpr(io, ex.head, inner)
for arg in ex.args
print(io, ex.head === :block ? ",\n"*" "^inner : ", ")
show_sexpr(io, arg, inner)
end
if isempty(ex.args); print(io, ",)")
else print(io, (ex.head === :block ? "\n"*" "^indent : ""), ')')
end
end
end # module
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