tybl

#include <string_view>
#include <algorithm>

struct StringRange {
	char const* begin;
	char const* end;
};

// uses string::find_first_of
std::vector<std::string>

tybl

==13438== Memcheck, a memory error detector
==13438== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==13438== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info
==13438== Command: include-what-you-use -Dlibledger_EXPORTS -I ../lib/utfcpp/v2_0/source/ -I ../build -DNDEBUG -fPIC -std=c++11 -o CMakeFiles/libledger.dir/filters.cc.o -c ../src/filters.cc
==13438==
==13438== Invalid read of size 8
==13438==    at 0x99A71DB: clang::Sema::PushOnScopeChains(clang::NamedDecl*, clang::Scope*, bool) (in /usr/lib/libclangSema.so.8)
==13438==    by 0x99C9359: clang::Sema::LazilyCreateBuiltin(clang::IdentifierInfo*, unsigned int, clang::Scope*, bool, clang::SourceLocation) (in /usr/lib/libclangSema.so.8)
==13438==    by 0x9CC6406: ??? (in /usr/lib/libclangSema.so.8)
==13438==    by 0x9CDE4BA: clang::Sema::LookupName(clang::LookupResult&, clang::Scope*, bool) (in /usr/lib/libclangSema.so.8)

tybl

; This is a simple method of maintaining a budget using
; double-entry accounting software.

; Usually, double-entry accounting keeps track of 
; assets, liabilities, income, and expenses. However,
; income/expense categories are different than budget
; categories. For one thing, income/expense categories
; continually grow, where budget categories tend to rise
; and fall. I decided to replace tracking my income/
; expenses with tracking my budget.

tybl

use std::num::{ zero, one };

struct Mean {
  mean: f64,
  count: u64,
}
 
impl Mean {
  fn consider(&mut self, other: f64) {
    self.count = self.count + one();