When GCC finds a wide string literal, it tries to re-encode the string literal from the file into wide string format. if (change_y) y = save_y; } This has no bug because save_y is used only if it is set. This encoding is only generated by the create_gcov tool in http://github.com/google/autofdo. Developing web applications for long lifespan (20+ years) Is it plausible for my creature to have similar IQ as humans? http://imagextension.com/gcc-error/gcc-error-message.php
Profile generation using an alternative instrumentation method can be controlled by the GCC-compatible flags -fprofile-generate and -fprofile-use. Does not warn about incomplete types. -Wstrict-overflow-Wstrict-overflow=nThis option is only active when -fstrict-overflow is active. Controlling How Clang Displays Diagnostics¶ When Clang emits a diagnostic, it includes rich information in the output, and gives you fine-grain control over which information is printed. This warning is enabled by -Wall. -WcommentWarn whenever a comment-start sequence `/*' appears in a `/*' comment, or whenever a Backslash-Newline appears in a `//' comment.
A machine-parsable representation of the ranges involved (off by default) [-fdiagnostics-print-source-range-info]. This is why we did not make -Wall request these warnings. Categories are not shown by default, but they can be turned on with the -fdiagnostics-show-category option.
Comment 5 Zaak 2015-03-03 20:48:53 UTC Alright, I agree with Dominique, this bug report was erroneous on my part. The debug machinery will register the line number at the point of macro expansion. This warning is issued even if the definition itself provides a prototype. This warning is comparable to warning about every identifier that contains the letter O because it might be confused with the digit 0, and so is not the default, but may
The compiler needs to know which part of that line is taken more frequently. Programs whose behavior depends on this have undefined behavior; the C standard specifies that “Between the previous and next sequence point an object shall have its stored value modified at most This is a common cause of error, as programmers often forget that this type is signed on some machines. -WcommentWarn whenever a comment-start sequence /* appears in a /* comment, or Warnings about conversions between signed and unsigned integers can be disabled by using -Wno-sign-conversion.
See SanitizerCoverage for more details. -f[no-]sanitize-stats Enable simple statistics gathering for the enabled sanitizers. You may redistribute copies of GNU Fortran under the terms of the GNU General Public License. This warning is enabled by -Wall or -Wextra. -Wunknown-pragmasWarn when a #pragma directive is encountered which is not understood by GCC. Code that is not exercised in the profile will be optimized as if it is unimportant, and the compiler may make poor optimization choices for code that is disproportionately used while
Best regards, 2014-01-06 lh_mouse Re: [Mingw-w64-public] Encoding problem with __FILE__ macro From: Ruben Van Boxem
A non-static function declaration follows a static one. this content But it is inevitable to involve the file's path in specific situations e.g. Language and Target-Independent Features¶ Controlling Errors and Warnings¶ Clang provides a number of ways to control which code constructs cause it to emit errors and warning messages, and how they are The absence of these prototypes when compiling with traditional C would cause serious problems.
if (change_y) y = save_y; } This has no bug because save_y is used only if it is set. In particular, instead of testing for equality, you would check to see whether the two values have ranges that overlap; and this is done with the relational operators, so equality comparisons In existing C++ implementations, however, offsetof typically gives meaningful results even when applied to certain kinds of non-POD types. (Such as a simple struct that fails to be a POD type weblink This warning is enabled by -Wall. -WunusedAll the above -Wunused options combined.
These warnings occur only for variables that are candidates for register allocation. It is not supported by ISO C90 and was not supported by GCC versions before GCC 3.0. The resulting merged "raw" profile data file still needs to be converted to a different format expected by the compiler ( see step 3 below). $ LLVM_PROFILE_FILE="code-%m.profraw" ./code Combine profiles from
This option makes Clang print available Fix-Its in a machine parseable format at the end of diagnostics. For example, in this output: test.c:28:8: warning: extra tokens at end of #endif directive [-Wextra-tokens] #endif bad ^ // Passing -fno-diagnostics-show-option will prevent Clang from printing the [-Wextra-tokens] information in the This option, which defaults to "none", controls whether or not Clang prints the category associated with a diagnostic when emitting it. This is what discriminators provide.
Generating a PCH File¶ To generate a PCH file using Clang, one invokes Clang with the -x
To suppress this warning use the `unused' attribute (see Variable Attributes). -Wunused-parameterWarn whenever a function parameter is unused aside from its declaration.
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