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| author | Wladimir J. van der Laan <laanwj@gmail.com> | 2018-06-24 16:34:56 +0200 |
|---|---|---|
| committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2018-06-24 16:36:40 +0200 |
| commit | 31145a3d7c747dce4db5cebc1a3f9cdd91681cb5 (patch) | |
| tree | e9bd92886a52fb843553964577cc8c7f3c56ebec /configure.ac | |
| parent | dc53f7f2514026db8a28632371e73e6dbf858083 (diff) | |
| parent | d92204c900d55ebaf2af5c900162b3c2c8c296e2 (diff) | |
Merge #13480: Avoid copies in range-for loops and add a warning to detect them
d92204c900d55ebaf2af5c900162b3c2c8c296e2 build: add warning to detect hidden copies in range-for loops (Cory Fields)
466e16e0e8523909f9968c5823691b1d4a3d8175 cleanup: avoid hidden copies in range-for loops (Cory Fields)
Pull request description:
Following-up on #13241, which was itself a follow-up of #12169.
See title. Fixing these would otherwise be a continuous process, adding the warning should keep them from cropping up.
Note that the warning seems to be Clang-only for now.
Tree-SHA512: ccfb769c3128b3f92c95715abcf21ee2496fe2aa384f80efead1529a28eeb56b98995b531b49a089f8142601389e63f7bb935963d724eacde4f5e1b4a024934b
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 027e429140..ff7f1b39c8 100644 --- a/configure.ac +++ b/configure.ac @@ -301,6 +301,7 @@ if test "x$CXXFLAGS_overridden" = "xno"; then AX_CHECK_COMPILE_FLAG([-Wvla],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wvla"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-Wformat-security],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wformat-security"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-Wthread-safety-analysis],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wthread-safety-analysis"],,[[$CXXFLAG_WERROR]]) + AX_CHECK_COMPILE_FLAG([-Wrange-loop-analysis],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wrange-loop-analysis"],,[[$CXXFLAG_WERROR]]) ## Some compilers (gcc) ignore unknown -Wno-* options, but warn about all ## unknown options if any other warning is produced. Test the -Wfoo case, and |