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main.cpp: error out when file/path provided by -I or -include= does not exist #435

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main.cpp: error out when file/path provided by -I or -include= does not exist #435

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b793919
main.cpp: replaced `std::exit()` with `return`
firewave Jun 11, 2025
16665fd
main.cpp: error out when file/path provided by `-I` or `-include=` do…
firewave Jun 11, 2025
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37 changes: 32 additions & 5 deletions main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -77,20 +77,47 @@ int main(int argc, char **argv)
}
} else if (filename) {
std::cout << "error: multiple filenames specified" << std::endl;
std::exit(1);
return 1;
} else {
filename = arg;
}
}

if (error)
std::exit(1);
return 1;

if (quiet && error_only) {
std::cout << "error: -e cannot be used in conjunction with -q" << std::endl;
std::exit(1);
return 1;
}

// TODO: move this logic into simplecpp?
{
bool inc_missing = false;
for (const std::string& inc : dui.includes) {
std::ifstream f(inc);
if (!f.is_open()) {
inc_missing = true;
std::cout << "error: could not open include '" << inc << "'" << std::endl;
}
}
if (inc_missing)
return 1;
}
{
bool inc_missing = false;
for (const std::string& inc : dui.includePaths) {
// TODO: check if this is a directory
std::ifstream f(inc);
if (!f.is_open()) {
inc_missing = true;
std::cout << "error: could not find include path '" << inc << "'" << std::endl;
}
}
if (inc_missing)
return 1;
}

if (!filename) {
std::cout << "Syntax:" << std::endl;
std::cout << "simplecpp [options] filename" << std::endl;
Expand All @@ -102,7 +129,7 @@ int main(int argc, char **argv)
std::cout << " -q Quiet mode (no output)." << std::endl;
std::cout << " -is Use std::istream interface." << std::endl;
std::cout << " -e Output errors only." << std::endl;
std::exit(0);
return 0;
}

dui.removeComments = true;
Expand All @@ -115,7 +142,7 @@ int main(int argc, char **argv)
std::ifstream f(filename);
if (!f.is_open()) {
std::cout << "error: could not open file '" << filename << "'" << std::endl;
std::exit(1);
return 1;
}
rawtokens = new simplecpp::TokenList(f, files,filename,&outputList);
} else {
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