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7cf7d09c77
- The issue comes from the fact that the default generated
+= and co by the Python API is the one for immutable types, like int.
- Indeed, in python, for an int :
x=1
id(x)
140266967205832
x+=1
id(x)
140266967205808
- For a mutable type, like a gf, it is necessary to
add explicitly the xxx_inplace_add functions.
- Added :
- the generation of the inplace_xxx functions
- a method in class_ in the wrapper generator that
deduce all += operator from the + operators.
- this assumes that the +=, ... are defined in C++.
- The generation of such operators are optional, with option
with_inplace_operators in the arithmetic flag.
- Also, added the overload g += M and g -= M for
g : GfImfreq, M a complex matrix.
Mainly for legacy Python codes.
56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
# Test from I. Krivenko.
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from __future__ import print_function
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from pytriqs.gf.local import *
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from pytriqs.gf.local.descriptors import *
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import sys
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def print_err(*x) : print (*x, file= sys.stderr)
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g_up = GfImFreq(indices = [0], beta = 1)
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g_dn = GfImFreq(indices = [0], beta = 1)
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g_up <<= iOmega_n
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g_dn <<= iOmega_n
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G = BlockGf(name_list=['up','dn'], block_list=[g_up,g_dn], make_copies=False)
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print("Before:")
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print("G['up'] =", G['up'].data[0,0,0])
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print("G['dn'] =", G['dn'].data[0,0,0])
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print_err('id(g_up) =', id(g_up))
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print_err('id(g_dn) =', id(g_dn))
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print_err ("(id=", id(G['up']),")")
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print_err ("(id=", id(G['dn']),")")
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G['up'] += G['dn']
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print("After G['up'] += G['dn']:")
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print("G['up'] =", G['up'].data[0,0,0])
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print("G['dn'] =", G['dn'].data[0,0,0])
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print_err('id(g_up) =', id(g_up))
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print_err('id(g_dn) =', id(g_dn))
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print_err ("(id=", id(G['up']),")")
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print_err ("(id=", id(G['dn']),")")
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g_up += g_dn
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print("After g_up += g_dn:")
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print("G['up'] =", G['up'].data[0,0,0])
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print("G['dn'] =", G['dn'].data[0,0,0])
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print_err('id(g_up) =', id(g_up))
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print_err('id(g_dn) =', id(g_dn))
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print_err ("(id=", id(G['up']),")")
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print_err ("(id=", id(G['dn']),")")
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G += G
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print("After G += G:")
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print("G['up'] =", G['up'].data[0,0,0])
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print("G['dn'] =", G['dn'].data[0,0,0])
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print_err('id(g_up) =', id(g_up))
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print_err('id(g_dn) =', id(g_dn))
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print_err ("(id=", id(G['up']),")")
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print_err ("(id=", id(G['dn']),")")
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