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Take into account that PATH could be empty

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This commit is contained in:
Carles Fernandez 2019-03-03 10:57:05 +01:00
parent 5cbafa276f
commit 0564b790e7
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1 changed files with 6 additions and 3 deletions
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9
src/tests/common-files/gnuplot_i.h
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@ -2082,10 +2082,13 @@ bool Gnuplot::get_program_path()
// Retrieves a C string containing the value of environment variable PATH // Retrieves a C string containing the value of environment variable PATH
path = std::getenv("PATH"); path = std::getenv("PATH");
std::stringstream s; std::stringstream s;
s << path; if (!path)
if (s.fail())
{ {
throw GnuplotException("Path is not set"); s << path;
}
if (s.fail() or s.gcount() == 0)
{
throw GnuplotException("PATH is not set");
} }
std::string path_str = s.str(); std::string path_str = s.str();