diff options
| author | Boris Kolpackov <boris@codesynthesis.com> | 2017-11-21 14:06:21 +0200 |
|---|---|---|
| committer | Boris Kolpackov <boris@codesynthesis.com> | 2017-11-21 14:06:21 +0200 |
| commit | 634d73eb9a84e27cecf0cc39cf371f5d16556514 (patch) | |
| tree | 53740049ddb9102c720b508647134f8f3beb6d33 /libbutl/utility.mxx | |
| parent | 1af2a51508e989956414f55240923a11a938ec6d (diff) | |
Move eof() utility to libbutl
Diffstat (limited to 'libbutl/utility.mxx')
| -rw-r--r-- | libbutl/utility.mxx | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/libbutl/utility.mxx b/libbutl/utility.mxx index 8ef0d08..410dae8 100644 --- a/libbutl/utility.mxx +++ b/libbutl/utility.mxx @@ -15,6 +15,7 @@ #ifndef __cpp_lib_modules #include <string> #include <iosfwd> // ostream +#include <istream> #include <cstddef> // size_t #include <utility> // move(), forward() #include <cstring> // strcmp(), strlen() @@ -37,7 +38,6 @@ import std.io; #include <libbutl/export.hxx> - LIBBUTL_MODEXPORT namespace butl { // Throw std::system_error with generic_category or system_category, @@ -56,6 +56,21 @@ LIBBUTL_MODEXPORT namespace butl [[noreturn]] LIBBUTL_SYMEXPORT void throw_system_error (int system_code, int fallback_errno_code = 0); + // If an input stream is in a failed state, then return true if this is + // because of the eof and throw istream::failure otherwise. If the stream + // is not in a failed state, return false. This helper function is normally + // used like this: + // + // is.exceptions (istream::badbit); + // + // for (string l; !eof (getline (is, l)); ) + // { + // ... + // } + // + bool + eof (std::istream&); + // Convert ASCII character/string case. If there is no upper/lower case // counterpart, leave the character unchanged. The POSIX locale (also known // as C locale) must be the current application locale. Otherwise the |