Undefined symbols for architecture i386: “_OBJC_CLASS_$_XXX”, referenced from: objc-class-ref in XXX ld: symbol(s) not found for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation) 如果真机调试就是 undefined sy…
错误记录:QT中使用 no matching function for call to 'std::basic_ifstream<char>::basic_ifstream(QString&, const openmode&)' ifstream i_f_stream(fileName,ifstream::binary); ^ 没有匹配对. 看别人的:error: no matching function for call to 'std::basic_ifstream<…
int xfun(int *a,int n) { int x = *a;//a的类型是int *,a+1跳动一个int的长度 ; pa < a + n; pa++)//指向同一个类型的指针比较大小,相减是两者之间的元素个数 { //string s = pa - a;// string接受const char*的单参构造函数不是explicit的,但编译器不能把int转换为string类型 decltype(pa - a) t; ][]; decltype(arr) Type; float f…
1.编译种错误提示: arm-none-linux-gnueabi-gcc: directory: No such file or directory arm-none-linux-gnueabi-gcc: directory": No such file or directory <command-line>:0:16: warning: missing terminating " character 解决方案: https://github.com/Pivosgroup…
有转载这里的也有添加的. ################# Fix 1 ########################## Error: frameworks/base/include/utils/KeyedVector.h:193:31: note: declarations in dependent base ‘android::KeyedVector<android::String8, android::sp<AaptDir> >’ are not found by un…
变量赋值 常用的变量赋值都是用“=”去赋值的 ; 但是如果把一个浮点数赋值给i的话,就会造成精度损失,在C++中最好使用初始化列表的方式“{}”给变量赋值,这样可以保证不会发生某些可能导致信息丢失的类型转换 #include <iostream> using namespace std; int main() { int i {2.3}; ; } 比如这样声明,编译器就会报错 <source>: In function 'int main()': 5 : <source>…
今天在一台新机子上编译项目,出现了这个错误,不知如何解决,先记录一下. 1>------ 已启动全部重新生成: 项目: ZERO_CHECK, 配置: Debug x64 ------1> Checking Build System1> CMake does not need to re-run because O:/OpenSceneGraph/osgearth_2_4_build/CMakeFiles/generate.stamp is up-to-date.1> CMake…