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| author | gatecat <gatecat@ds0.me> | 2021-09-27 19:18:22 +0100 |
|---|---|---|
| committer | gatecat <gatecat@ds0.me> | 2021-09-27 19:18:40 +0100 |
| commit | 0b0baf34467e82293c33ed04e966155e3bcc544f (patch) | |
| tree | e532d82773047cfb5f101740a349d59976287108 /common/idstring.h | |
| parent | 535b2490c422f2343e97404c7c304c71b549e3a3 (diff) | |
| download | nextpnr-0b0baf34467e82293c33ed04e966155e3bcc544f.tar.gz nextpnr-0b0baf34467e82293c33ed04e966155e3bcc544f.tar.bz2 nextpnr-0b0baf34467e82293c33ed04e966155e3bcc544f.zip | |
idstring: Add 'in' function
Signed-off-by: gatecat <gatecat@ds0.me>
Diffstat (limited to 'common/idstring.h')
| -rw-r--r-- | common/idstring.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/common/idstring.h b/common/idstring.h index 28f5456d..019e0a2a 100644 --- a/common/idstring.h +++ b/common/idstring.h @@ -58,6 +58,16 @@ struct IdString bool empty() const { return index == 0; } unsigned int hash() const { return index; } + + template <typename... Args> bool in(Args... args) const + { + // Credit: https://articles.emptycrate.com/2016/05/14/folds_in_cpp11_ish.html + bool result = false; + (void)std::initializer_list<int>{(result = result || in(args), 0)...}; + return result; + } + + bool in(const IdString &rhs) const { return *this == rhs; } }; NEXTPNR_NAMESPACE_END |