Question

我使用的是DevC ++ 5.11，我有一个包含5个文件的项目：

mainDistances.cpp

distances.cpp

distances.h

matrix.cpp

matrix.h

我收到这些错误：

enterabs

几乎所有东西看起来都是未定义的。它不会读取其他文件。

cancel

这些文件各有近200行，所以我不打算把这篇文章变得很大，但请告诉我你是否需要其他一些代码部分。

distances.h

[Error] ld returned 1 exit status
mainDistances.cpp: undefined reference to `Matrix<float>::operator=(Matrix<float> const&)'
mainDistances.cpp:(.text+0xb5f): undefined reference to `Matrix<float>::rows()'
[...]\distances.o   distances.cpp:(.rdata$_ZTV6MatrixIiE[_ZTV6MatrixIiE]+0x18): undefined reference to `Matrix<int>::readMatrix(std::string const&)'

AND MORE

distaces.cpp

# Project: mainDistances
# Makefile created by Dev-C++ 5.11

CPP      = g++.exe
CC       = gcc.exe
WINDRES  = windres.exe
OBJ      = distances.o mainDistances.o matrix.o
LINKOBJ  = distances.o mainDistances.o matrix.o
LIBS     = -L"C:/Program Files (x86)/Dev-Cpp/MinGW64/lib" -L"C:/Program Files (x86)/Dev-Cpp/MinGW64/x86_64-w64-mingw32/lib" -static-libgcc
INCS     = -I"C:/Program Files (x86)/Dev-Cpp/MinGW64/include" -I"C:/Program Files (x86)/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include" -I"C:/Program Files (x86)/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include"
CXXINCS  = -I"C:/Program Files (x86)/Dev-Cpp/MinGW64/include" -I"C:/Program Files (x86)/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include" -I"C:/Program Files (x86)/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include" -I"C:/Program Files (x86)/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include/c++"
BIN      = mainDistances.exe
CXXFLAGS = $(CXXINCS) -std=c++11
CFLAGS   = $(INCS) -std=c++11
RM       = rm.exe -f

.PHONY: all all-before all-after clean clean-custom

all: all-before $(BIN) all-after

clean: clean-custom
    ${RM} $(OBJ) $(BIN)

$(BIN): $(OBJ)
    $(CPP) $(LINKOBJ) -o $(BIN) $(LIBS)

distances.o: distances.cpp
    $(CPP) -c distances.cpp -o distances.o $(CXXFLAGS)

mainDistances.o: mainDistances.cpp
    $(CPP) -c mainDistances.cpp -o mainDistances.o $(CXXFLAGS)

matrix.o: matrix.cpp
    $(CPP) -c matrix.cpp -o matrix.o $(CXXFLAGS)

Answer 1

你的代码可能叫做math.h，因为c ++默认叫做libc.so（它不需要add -lc参数）。如果你调用了math.h，你需要添加“-lm”来添加libm.so.希望它可以帮到你。我的英语非常糟糕，我很抱歉......

错误 - ld返回1退出状态未定义引用

1 个答案: