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author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/asymptote/lexical.h |
Initial commit
Diffstat (limited to 'graphics/asymptote/lexical.h')
-rw-r--r-- | graphics/asymptote/lexical.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/graphics/asymptote/lexical.h b/graphics/asymptote/lexical.h new file mode 100644 index 0000000000..fc3879961d --- /dev/null +++ b/graphics/asymptote/lexical.h @@ -0,0 +1,23 @@ +#ifndef __lexical_h__ +#define __lexical_h__ 1 + +#include <sstream> + +#include "common.h" + +namespace lexical { + +class bad_cast {}; + +template <typename T> +T cast(const string& s, bool tolerant=false) +{ + istringstream is(s); + T value; + if(is && is >> value && ((is >> std::ws).eof() || tolerant)) return value; + throw bad_cast(); +} + +} + +#endif |