clang

问题 I have two directories, sorting and searching (children of the same directory), that have .c source files and .h header files: mbp:c $ ls sorting array_tools.c bubble_sort.c insertion_sort.c main selection_sort.c array_tools.h bubble_sort.h insertion_sort.h main.c selection_sort.h mbp:c $ ls searching array_tools.c array_tools.h binary_search.c binary_search.h linear_search.c linear_search.h main main.c Within searching , I am building an executable that needs to use insertion_sort function,

问题 I have been trying to compile my code using -pg to enable profiling in the simulator and once I do that it gives me linker errors. Compilation command hexagon-clang++ main.cpp -o hello -mv62 -pg Error hexagon-clang++ main.cpp -o hello -mv62 -pg Error: /tmp/main-924ac3.o(.text+0x30): undefined reference to `mcount' Error: /tmp/main-924ac3.o(.text+0x130): undefined reference to `mcount' Fatal: Linking had errors. This is my first time to write code for DSP chip, specifically the hexagon 682.

问题 I have two main functions that use a common C++ class. File1: main.cpp #include <iostream> #include "HelloAnother.h" int main() { HelloAnother::sayHello1(); return 0; } File2: main2.cpp #include <iostream> #include "HelloAnother.h" int main() { HelloAnother::sayHello2(); return 0; } File3: HelloAnother.h #pragma once class HelloAnother { public: static void sayHello1(); static void sayHello2(); }; File4: HelloAnother.cpp #include <iostream> #include "HelloAnother.h" void HelloAnother:

问题 QtC 4.7 offers the inline CLANG code checks, as shown in the screenshots. I can configure those from options/C++ . But I wonder if I can have a config file which I can commit (git) so everyone in the team is using the same checks. Is that possible (e.g. similar to Artistic style where I can use a file or the config in QtC)? The checks I mean: Configure in C++ options, can I do the same in a config file? --- Edit --- I could use the annotations like [[clang::fallthrough]] which silence the

问题 I'm trying to link together: libFuzzer.a, compiled with clang++-5.0 and -std=c++11 my fuzz driver, compiled with clang++-5.0 and -std=c++11 -stdlib=libc++ libcurl, compiled with clang-5.0 Specifically, this linker command is being executed: /bin/bash ../../libtool --silent --tag=CXX --mode=link clang++-5.0 -I../../include -I../../lib -I../../lib -I../../tests/fuzz -fsanitize=address -fsanitize-address-use-after-scope -fsanitize-coverage=trace-pc-guard,trace-cmp -std=c++11 -stdlib=libc++ -o

问题 The following function returns an rvalue: int foo() { int x = 42; return x; // x is converted to prvalue } Clang's AST also shows the conversion: `-FunctionDecl <line:1:1, line:5:1> line:1:5 foo 'int ()' `-CompoundStmt <line:2:1, line:5:1> |-DeclStmt <line:3:5, col:15> | `-VarDecl <col:5, col:13> col:9 used x 'int' cinit | `-IntegerLiteral <col:13> 'int' 42 `-ReturnStmt <line:4:5, col:12> `-ImplicitCastExpr <col:12> 'int' <LValueToRValue> ^^^^^^^^^^^^^^ `-DeclRefExpr <col:12> 'int' lvalue Var

问题 The following function returns an rvalue: int foo() { int x = 42; return x; // x is converted to prvalue } Clang's AST also shows the conversion: `-FunctionDecl <line:1:1, line:5:1> line:1:5 foo 'int ()' `-CompoundStmt <line:2:1, line:5:1> |-DeclStmt <line:3:5, col:15> | `-VarDecl <col:5, col:13> col:9 used x 'int' cinit | `-IntegerLiteral <col:13> 'int' 42 `-ReturnStmt <line:4:5, col:12> `-ImplicitCastExpr <col:12> 'int' <LValueToRValue> ^^^^^^^^^^^^^^ `-DeclRefExpr <col:12> 'int' lvalue Var

问题 In my small arkanoid clone game I'm trying to erase some values from a vector. This vector contains Brick classes, that are instantiated on the screen in a grid like pattern. When a collision happens between the ball and a brick, the brick needs to disappear. I'm trying to accomplish this with this small piece of code: for (int i = 0; i < bricks.size(); ++i) { if (bricks[i].destroyed) { bricks.erase(bricks.begin()+i); } } But unfortunately I get this compile error: Object of type 'Brick'

问题 I have been trying to compile Boost libraries using b2 in Windows but using Clang/C2 (Clang 3.7 with Microsoft CodeGen), to no success. Since Visual Studio comes with several toolsets to use at build time, it seems it shouldn't be too hard to specify which. I have seen another posting relating to "building boost with clang 3.8 on windows" but his proposal to use as command line for b2 is in error because it is not really invoking the clang compiler from MSVC. The person posting that used the

问题 As stated in this question: LLVM and GCC, different output same code, LLVM and GCC result in different output for the same code. #include <stdio.h> #define MAX(a,b) ( (a) > (b) ? (a) : (b) ) int increment() { static int i = 42; i += 5; printf("increment returns %d\n",i); return i; } int main( int argc, char ** argv ) { int x = 50; printf("max of %d and %d is %d\n", x,increment(),MAX(x, increment())); printf("max of %d and %d is %d\n", x,increment(),MAX(x, increment())); return 0; } The LLVM