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common/amount: new types struct amount_msat and struct amount_sat.

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They're generally used pass-by-copy (unusual for C structs, but
convenient they're basically u64) and all possibly problematic
operations return WARN_UNUSED_RESULT bool to make you handle the
over/underflow cases.

The new #include in json.h means we bolt11.c sees the amount.h definition
of MSAT_PER_BTC, so delete its local version.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2019-02-20 22:01:48 +10:30
parent 269dbe585c
commit 7fad7bccba
25 changed files with 780 additions and 5 deletions
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2
tools/generate-wire.py
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@@ -45,7 +45,7 @@ class FieldType(object):
self.name = name
def is_assignable(self):
return self.name in ['u8', 'u16', 'u32', 'u64', 'bool'] or self.name.startswith('enum ')
return self.name in ['u8', 'u16', 'u32', 'u64', 'bool', 'struct amount_msat', 'struct amount_sat'] or self.name.startswith('enum ')
# We only accelerate the u8 case: it's common and trivial.
def has_array_helper(self):