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Don't make copies!

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This commit is contained in:
Richard Kimberly Heck 2020-05-13 14:23:27 -04:00
parent 47973dc2b4
commit ce33715d2b
1 changed files with 4 additions and 4 deletions
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8
src/graphics/PreviewLoader.cpp
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@ -126,7 +126,7 @@ void setAscentFractions(vector<double> & ascent_fractions,
std::function <bool (SnippetPair const &)> FindFirst(string const & comp) std::function <bool (SnippetPair const &)> FindFirst(string const & comp)
{ {
return [comp](SnippetPair const & sp) { return sp.first == comp; }; return [&comp](SnippetPair const & sp) { return sp.first == comp; };
} }
@ -321,7 +321,7 @@ namespace {
std::function<SnippetPair (string const &)> IncrementedFileName std::function<SnippetPair (string const &)> IncrementedFileName
(string const & to_format, string const & filename_base) (string const & to_format, string const & filename_base)
{ {
return [to_format, filename_base](string const & snippet) return [&to_format, &filename_base](string const & snippet)
{ {
static int counter_ = 1; static int counter_ = 1;
ostringstream os; ostringstream os;
@ -478,7 +478,7 @@ namespace {
std::function<bool (InProgressProcess const &)> FindSnippet(string const & s) std::function<bool (InProgressProcess const &)> FindSnippet(string const & s)
{ {
return [s](InProgressProcess const & process) { return [&s](InProgressProcess const & process) {
BitmapFile const & snippets = process.second.snippets; BitmapFile const & snippets = process.second.snippets;
BitmapFile::const_iterator beg = snippets.begin(); BitmapFile::const_iterator beg = snippets.begin();
BitmapFile::const_iterator end = snippets.end(); BitmapFile::const_iterator end = snippets.end();
@ -531,7 +531,7 @@ void PreviewLoader::Impl::add(string const & latex_snippet)
namespace { namespace {
std::function<void (InProgressProcess &)> EraseSnippet(string const & s) { std::function<void (InProgressProcess &)> EraseSnippet(string const & s) {
return [s](InProgressProcess & process) { return [&s](InProgressProcess & process) {
BitmapFile & snippets = process.second.snippets; BitmapFile & snippets = process.second.snippets;
BitmapFile::iterator it = snippets.begin(); BitmapFile::iterator it = snippets.begin();
BitmapFile::iterator end = snippets.end(); BitmapFile::iterator end = snippets.end();