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absPath(): Use std::optional

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This commit is contained in:
Eelco Dolstra 2020-01-08 15:34:06 +01:00
parent 6fadb3fc03
commit 1bf9eb21b7
2 changed files with 4 additions and 4 deletions
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6
src/libutil/util.cc
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@ -98,10 +98,10 @@ void replaceEnv(std::map<std::string, std::string> newEnv)
}
Path absPath(Path path, Path dir)
Path absPath(Path path, std::optional<Path> dir)
{
if (path[0] != '/') {
if (dir == "") {
if (!dir) {
#ifdef __GNU__
/* GNU (aka. GNU/Hurd) doesn't have any limitation on path
lengths and doesn't define `PATH_MAX'. */
@ -117,7 +117,7 @@ Path absPath(Path path, Path dir)
free(buf);
#endif
}
path = dir + "/" + path;
path = *dir + "/" + path;
}
return canonPath(path);
}

2
src/libutil/util.hh
View file

@ -46,7 +46,7 @@ void clearEnv();
/* Return an absolutized path, resolving paths relative to the
specified directory, or the current directory otherwise. The path
is also canonicalised. */
Path absPath(Path path, Path dir = "");
Path absPath(Path path, std::optional<Path> dir = {});
/* Canonicalise a path by removing all `.' or `..' components and
double or trailing slashes. Optionally resolves all symlink