Mirrors/CppCoreGuidelines
1
0
Fork 0
mirror of https://github.com/isocpp/CppCoreGuidelines.git synced 2025-12-17 04:44:34 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Closes #1257

Browse Source 
Fixed example
This commit is contained in:
hsutter
2018-09-06 11:59:34 -07:00
parent 60e19d76a4
commit 104cd63a37
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
CppCoreGuidelines.md
View File

@@ -15798,7 +15798,7 @@ This can be messy:
} }
Simulating RAII can be non-trivial, especially in functions with multiple resources and multiple possible errors. Simulating RAII can be non-trivial, especially in functions with multiple resources and multiple possible errors.
A not uncommon technique is to gather cleanup at the end of the function to avoid repetition: A not uncommon technique is to gather cleanup at the end of the function to avoid repetition (note the extra scope around `g2` is undesirable but necessary to make the `goto` version compile):
std::pair<int, error_indicator> user() std::pair<int, error_indicator> user()
{ {
@@ -15810,6 +15810,7 @@ A not uncommon technique is to gather cleanup at the end of the function to avoi
goto exit; goto exit;
} }
{
Gadget g2 = make_gadget(17); Gadget g2 = make_gadget(17);
if (!g2.valid()) { if (!g2.valid()) {
err = g2_error; err = g2_error;
@@ -15821,6 +15822,7 @@ A not uncommon technique is to gather cleanup at the end of the function to avoi
goto exit; goto exit;
} }
// ... // ...
}
exit: exit:
if (g1.valid()) cleanup(g1); if (g1.valid()) cleanup(g1);