c - 线程创建 : error error: ‘cpu’ undeclared (first use in this function)

Question

我在使用 C 线程时遇到这个问题: 我已将 cpu.h 包含到主文件中，为什么此错误仍然存​​在？

main.c

#include <stdio.h>                      
#include <sys/types.h>                      
#include <sys/stat.h>                       
#include <fcntl.h>                      
#include <unistd.h>                         
#include <string.h>                         
#include <stdlib.h>                         
#include <pthread.h>

#include "funzioni.h"
#include "ram.h" 
#include "cpu.h" 
#include "err.h"
......
......
rc = pthread_create (&threads[i] , NULL ,cpu, (void*)&parametri_thread_cpu[i] );

错误:“cpu”未声明(在此函数中首次使用)

我将 cpu.h 包含到 main.c 中

cpu.h

#ifndef FUNZIONI_H
#define FUNZIONI_H
void *cpu(void *thread_arg);
#endif

我的生成文件

# Sources
SRCS= err.c funzioni.c cpu.c ram.c main.c
OBJS=$(SRCS:.c=.o)
EXECUTABLE=main.x

# Config
CC=gcc
CFLAGS= -c
LIBS= -lpthread
LD=gcc

# Target

all: clean $(EXECUTABLE)


clean:
@echo Cleaning old files
@rm -f *.o *.x

$(EXECUTABLE): $(OBJS)
@echo -------------Building $@
@ $(LD) -o $@ $^ $(LIBS)

err.o: err.c err.h
@echo -------------Building $@
@ $(CC) $(CFLAGS) -o $@ $<  

funzioni.o: funzioni.c funzioni.h 
@echo -------------Building $@
@ $(CC) $(CFLAGS) -o $@ $< $(LIBS)

cpu.o: cpu.c cpu.h funzioni.h err.h 
@echo -------------Building $@
@ $(CC) $(CFLAGS) -o $@ $< $(LIBS)

ram.o: ram.c ram.h funzioni.h err.h 
@echo -------------Building $@
@ $(CC) $(CFLAGS) -o $@ $< $(LIBS)

main.o: main.c ram.h cpu.h funzioni.h err.h  
@echo -------------Building $@
@ $(CC) $(CFLAGS) -o $@ $< $(LIBS)

.PHONY: all clean

这是我用于编译代码的 makefile

Answer 1

您已从另一个包含文件“funzioni.h”复制了包含防护。

将其更改为CPU_H或类似的。