show_txt.cpp

本文介绍了一个C++模板函数示例,展示了如何定义和使用接受不同数据类型参数的通用函数。通过具体的调用实例,读者可以了解模板函数的实际应用。

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  name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"> #include <iostream.h>

template <class T1, class T2> void sample(T1 x, T2 y);

void main(void)
 {
   sample(10, "hi");
   sample(0.23, 10L);
   sample("Jamsa's", "C/C++");
 }

template <class T1, class T2> void sample(T1 x, T2 y)
 {
   cout << x << " " << y << endl;
 }

/usr/local/clion-2025.1.2/bin/cmake/linux/x64/bin/cmake --build /home/hdy/CLionProjects/untitled/cmake-build-release --target untitled -j 6 [2/2] Linking CXX executable untitled FAILED: untitled : && /usr/bin/c++ -O3 -DNDEBUG -Wl,--dependency-file=CMakeFiles/untitled.dir/link.d CMakeFiles/untitled.dir/main.cpp.o -o untitled -Wl,-rpath,/usr/local/lib:/usr/lib/x86_64-linux-gnu/openmpi/lib /usr/local/lib/libopencv_gapi.so.4.8.0 /usr/local/lib/libopencv_highgui.so.4.8.0 /usr/local/lib/libopencv_ml.so.4.8.0 /usr/local/lib/libopencv_objdetect.so.4.8.0 /usr/local/lib/libopencv_photo.so.4.8.0 /usr/local/lib/libopencv_stitching.so.4.8.0 /usr/local/lib/libopencv_video.so.4.8.0 /usr/local/lib/libopencv_videoio.so.4.8.0 -lfltk /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi.so -lsqlite3 -ldl -lpthread /usr/local/lib/libopencv_imgcodecs.so.4.8.0 /usr/local/lib/libopencv_dnn.so.4.8.0 /usr/local/lib/libopencv_calib3d.so.4.8.0 /usr/local/lib/libopencv_features2d.so.4.8.0 /usr/local/lib/libopencv_flann.so.4.8.0 /usr/local/lib/libopencv_imgproc.so.4.8.0 /usr/local/lib/libopencv_core.so.4.8.0 && : /usr/bin/ld: CMakeFiles/untitled.dir/main.cpp.o: in function `pngDisplay(Fl_Box*, Fl_Image*, char*)': main.cpp:(.text+0x27): undefined reference to `Fl_PNG_Image::Fl_PNG_Image(char const*)' /usr/bin/ld: CMakeFiles/untitled.dir/main.cpp.o: in function `main': main.cpp:(.text.startup+0x9): undefined reference to `fl_register_images()' collect2: error: ld returned 1 exit status ninja: build stopped: subcommand failed.
06-24
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