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ilpropheta/parse_int with some checks.cpp Secret

Created January 2, 2017 20:26
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parse_int with some checks.cpp
string_view parse_int(string_view sv, int& i)
{
if(sv.empty() || ((!isdigit(sv[0])) && (sv[0] != '-') && (sv[0] != '+')))
// handle error
char* endPtr = nullptr;
i = strtol(sv.data(), &endPtr, 10);
if (*endPtr != 0) // assumption
// handle error
return sv.substr(endPtr-sv.begin());
}
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