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修正したがまだコンパイルできないので、再投稿

2016/10/10 06:12

投稿

cingyan

スコア29

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@@ -40,15 +40,27 @@
 ---
-追記
+追記 : 16/10/10
+教えて頂いた通りに修正しましたがまだ、コンパイルができず、実行ファイルができません。
-本から写したものです。打ち間違いがあるかもしれません。
+修正したコードと実行結果を載せますのでよろしくお願いします。
 07_01.c
+```
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <signal.h>
-```#include <sys/time.h>
+#include <sys/time.h>
 #define DATA_FILENAME "./stopwatch.dat"
@@ -70,7 +82,7 @@
 		return -1;
-	if(Write(fd,startTime,sizeof(*startTime))!=sizeof(*startTime))
+	if(write(fd,startTime,sizeof(*startTime))!=sizeof(*startTime))
 		ret=-1;
@@ -88,17 +100,29 @@
 ```
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <fcntl.h>
+#include <signal.h>
+#define DATA_FILENAME "./stopwatch.dat"
 int restoreTime(struct timeval *startTime)
 {
-	int fs,ret=0;
+	int fd,ret=0;
 	if((fd=open(DATA_FILENAME,O_RDONLY))<0)
 		return -1;
-	if(read(fd,strtTime,sizeof(*startTime))!=sizeof(*startTime))
+	if(read(fd,startTime,sizeof(*startTime))!=sizeof(*startTime))
 		ret =-1;
@@ -116,6 +140,20 @@
 ```
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <fcntl.h>
+#include <signal.h>
+int restoreTime(struct timeval *startTime);
+void printDiff(struct timeval *t1,struct timeval *t2);
 void lastTime(int unused)
 {
@@ -126,7 +164,7 @@
 	if(restoreTime(&startTime)<0)
-		exit(EXIT_FAILRE);
+		exit(EXIT_FAILURE);
 	gettimeofday(&lastTime,NULL);
@@ -144,6 +182,18 @@
 ```
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <fcntl.h>
+#include <signal.h>
 void printDiff(struct timeval *t1,struct timeval *t2)
 {
@@ -170,21 +220,23 @@
 main.c
+```
-```#include <stdio.h>
+#include <stdio.h>
-#include <stdlib.h>
+#include <stdlib.h>
-#include <unistd.h>
+#include <unistd.h>
-#include <sys/time.h>
+#include <sys/time.h>
-#include <fcntl.h>
+#include <fcntl.h>
-#include <signal.h>
+#include <signal.h>
-int iniTime(struct timeval *startTime);
+int initTime(struct timeval *startTime);
 int restoreTime(struct timeval *startTime);
@@ -280,221 +332,11 @@
 $ gcc 07_01.c 07_02.c 07_04.c 07_05.c main.c
-07_01.c: In function ‘iniTime’:
-07_01.c:8:25: error: ‘NULL’ undeclared (first use in this function)
-  gettimeofday(startTime,NULL);
-                         ^
-07_01.c:8:25: note: each undeclared identifier is reported only once for each function it appears in
-07_01.c:10:9: warning: implicit declaration of function ‘open’ [-Wimplicit-function-declaration]
-  if((fd=open(DATA_FILENAME,O_WRONLY|O_CREAT|O_TRUNC,0644))<0)
-         ^
-07_01.c:10:28: error: ‘O_WRONLY’ undeclared (first use in this function)
-  if((fd=open(DATA_FILENAME,O_WRONLY|O_CREAT|O_TRUNC,0644))<0)
-                            ^
-07_01.c:10:37: error: ‘O_CREAT’ undeclared (first use in this function)
-  if((fd=open(DATA_FILENAME,O_WRONLY|O_CREAT|O_TRUNC,0644))<0)
-                                     ^
-07_01.c:10:45: error: ‘O_TRUNC’ undeclared (first use in this function)
-  if((fd=open(DATA_FILENAME,O_WRONLY|O_CREAT|O_TRUNC,0644))<0)
-                                             ^
-07_01.c:12:5: warning: implicit declaration of function ‘Write’ [-Wimplicit-function-declaration]
-  if(Write(fd,startTime,sizeof(*startTime))!=sizeof(*startTime))
-     ^
-07_01.c:14:2: warning: implicit declaration of function ‘close’ [-Wimplicit-function-declaration]
-  close(fd);
-  ^
-07_02.c:1:24: warning: ‘struct timeval’ declared inside parameter list
- int restoreTime(struct timeval *startTime)
-                        ^
-07_02.c:1:24: warning: its scope is only this definition or declaration, which is probably not what you want
-07_02.c: In function ‘restoreTime’:
-07_02.c:4:6: error: ‘fd’ undeclared (first use in this function)
-  if((fd=open(DATA_FILENAME,O_RDONLY))<0)
+/tmp/cc8inniA.o: 関数 `main' 内:
-      ^
-07_02.c:4:6: note: each undeclared identifier is reported only once for each function it appears in
-07_02.c:4:9: warning: implicit declaration of function ‘open’ [-Wimplicit-function-declaration]
-  if((fd=open(DATA_FILENAME,O_RDONLY))<0)
-         ^
-07_02.c:4:14: error: ‘DATA_FILENAME’ undeclared (first use in this function)
-  if((fd=open(DATA_FILENAME,O_RDONLY))<0)
-              ^
-07_02.c:4:28: error: ‘O_RDONLY’ undeclared (first use in this function)
-  if((fd=open(DATA_FILENAME,O_RDONLY))<0)
-                            ^
-07_02.c:6:5: warning: implicit declaration of function ‘read’ [-Wimplicit-function-declaration]
-  if(read(fd,strtTime,sizeof(*startTime))!=sizeof(*startTime))
-     ^
-07_02.c:6:13: error: ‘strtTime’ undeclared (first use in this function)
-  if(read(fd,strtTime,sizeof(*startTime))!=sizeof(*startTime))
-             ^
-07_02.c:6:29: error: dereferencing pointer to incomplete type ‘struct timeval’
-  if(read(fd,strtTime,sizeof(*startTime))!=sizeof(*startTime))
-                             ^
-07_02.c:8:2: warning: implicit declaration of function ‘close’ [-Wimplicit-function-declaration]
-  close(fd);
-  ^
-07_04.c: In function ‘lastTime’:
-07_04.c:3:17: error: storage size of ‘startTime’ isn’t known
-  struct timeval startTime,lastTime;
-                 ^
-07_04.c:3:27: error: storage size of ‘lastTime’ isn’t known
-  struct timeval startTime,lastTime;
-                           ^
-07_04.c:5:5: warning: implicit declaration of function ‘restoreTime’ [-Wimplicit-function-declaration]
-  if(restoreTime(&startTime)<0)
-     ^
-07_04.c:6:3: warning: implicit declaration of function ‘exit’ [-Wimplicit-function-declaration]
-   exit(EXIT_FAILRE);
-   ^
-07_04.c:6:3: warning: incompatible implicit declaration of built-in function ‘exit’
-07_04.c:6:3: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’
-07_04.c:6:8: error: ‘EXIT_FAILRE’ undeclared (first use in this function)
-   exit(EXIT_FAILRE);
-        ^
-07_04.c:6:8: note: each undeclared identifier is reported only once for each function it appears in
-07_04.c:7:2: warning: implicit declaration of function ‘gettimeofday’ [-Wimplicit-function-declaration]
-  gettimeofday(&lastTime,NULL);
-  ^
-07_04.c:7:25: error: ‘NULL’ undeclared (first use in this function)
-  gettimeofday(&lastTime,NULL);
-                         ^
-07_04.c:8:2: warning: implicit declaration of function ‘printDiff’ [-Wimplicit-function-declaration]
-  printDiff(&lastTime,&startTime);
+main.c:(.text+0x4a): `initTime' に対する定義されていない参照です
-  ^
-07_04.c:9:2: warning: incompatible implicit declaration of built-in function ‘exit’
-  exit(EXIT_SUCCESS);
-  ^
-07_04.c:9:2: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’
-07_04.c:9:7: error: ‘EXIT_SUCCESS’ undeclared (first use in this function)
-  exit(EXIT_SUCCESS);
-       ^
-07_05.c:1:42: warning: ‘struct timeval’ declared inside parameter list
- void printDiff(struct timeval *t1,struct timeval *t2)
-                                          ^
-07_05.c:1:42: warning: its scope is only this definition or declaration, which is probably not what you want
-07_05.c: In function ‘printDiff’:
-07_05.c:3:17: error: storage size of ‘diff’ isn’t known
+collect2: error: ld returned 1 exit status
-  struct timeval diff;
-                 ^
-07_05.c:5:2: warning: implicit declaration of function ‘timersub’ [-Wimplicit-function-declaration]
-  timersub(t1,t2,&diff);
-  ^
-07_05.c:6:2: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration]
-  printf("%02lu:%2lu.%02lu\n",
-  ^
-07_05.c:6:2: warning: incompatible implicit declaration of built-in function ‘printf’
-07_05.c:6:2: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
-main.c: In function ‘main’:
-main.c:23:7: warning: implicit declaration of function ‘initTime’ [-Wimplicit-function-declaration]
-    if(initTime(&startTime)<0)
-       ^
 $

コードを伝える。

2016/10/10 06:12

投稿

cingyan

スコア29

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -37,3 +37,465 @@
 Ubuntu 15.10を使用しています。
 よろしくお願いします。
+---
+追記
+本から写したものです。打ち間違いがあるかもしれません。
+07_01.c
+```#include <sys/time.h>
+#define DATA_FILENAME "./stopwatch.dat"
+int iniTime(struct timeval *startTime)
+{
+	int fd,ret=0;
+	gettimeofday(startTime,NULL);
+	if((fd=open(DATA_FILENAME,O_WRONLY|O_CREAT|O_TRUNC,0644))<0)
+		return -1;
+	if(Write(fd,startTime,sizeof(*startTime))!=sizeof(*startTime))
+		ret=-1;
+	close(fd);
+	return ret;
+}
+```
+---
+07_02.c
+```
+int restoreTime(struct timeval *startTime)
+{
+	int fs,ret=0;
+	if((fd=open(DATA_FILENAME,O_RDONLY))<0)
+		return -1;
+	if(read(fd,strtTime,sizeof(*startTime))!=sizeof(*startTime))
+		ret =-1;
+	close(fd);
+	return ret;
+}
+```
+---
+07_04.c
+```
+void lastTime(int unused)
+{
+	struct timeval startTime,lastTime;
+	if(restoreTime(&startTime)<0)
+		exit(EXIT_FAILRE);
+	gettimeofday(&lastTime,NULL);
+	printDiff(&lastTime,&startTime);
+	exit(EXIT_SUCCESS);
+}
+```
+---
+07_05.c
+```
+void printDiff(struct timeval *t1,struct timeval *t2)
+{
+	struct timeval diff;
+	timersub(t1,t2,&diff);
+	printf("%02lu:%2lu.%02lu\n",
+		diff.tv_sec/60,
+		diff.tv_sec%60,
+		diff.tv_usec/10000);
+}
+```
+---
+main.c
+```#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <fcntl.h>
+#include <signal.h>
+int iniTime(struct timeval *startTime);
+int restoreTime(struct timeval *startTime);
+void lastTime(int unused);
+void printDiff(struct timeval *t1,struct timeval *t2);
+int main(int argc,char *argv[])
+{
+	int c;
+	struct timeval startTime={0,0},currentTime;
+	while((c=getopt(argc,argv,"cs"))!=EOF)
+	{
+		switch(c)
+		{
+		case 's':
+			if(initTime(&startTime)<0)
+			{
+				fprintf(stderr,"開始時刻の初期化、書き込みに失敗\n");
+				exit(EXIT_FAILURE);
+			}
+			break;
+		case 'c':
+			if(restoreTime(&startTime)<0)
+			{
+				fprintf(stderr,"開始時刻の読み込みに失敗\n");
+				exit(EXIT_FAILURE);
+			}
+			break;
+		}
+	}
+	if(startTime.tv_sec==0||argc!=2)
+	{
+		fprintf(stderr,"-sまたは-cオプションを指定してください。\n");
+		exit(EXIT_FAILURE);
+	}
+	signal(SIGINT,lastTime);
+	while(1)
+	{
+		sleep(1);
+		gettimeofday(&currentTime,NULL);
+		printDiff(&currentTime,&startTime);
+	}
+	exit(EXIT_SUCCESS);
+}
+```
+ターミナルでコンパイルすると、
+```
+$ gcc 07_01.c 07_02.c 07_04.c 07_05.c main.c
+07_01.c: In function ‘iniTime’:
+07_01.c:8:25: error: ‘NULL’ undeclared (first use in this function)
+  gettimeofday(startTime,NULL);
+                         ^
+07_01.c:8:25: note: each undeclared identifier is reported only once for each function it appears in
+07_01.c:10:9: warning: implicit declaration of function ‘open’ [-Wimplicit-function-declaration]
+  if((fd=open(DATA_FILENAME,O_WRONLY|O_CREAT|O_TRUNC,0644))<0)
+         ^
+07_01.c:10:28: error: ‘O_WRONLY’ undeclared (first use in this function)
+  if((fd=open(DATA_FILENAME,O_WRONLY|O_CREAT|O_TRUNC,0644))<0)
+                            ^
+07_01.c:10:37: error: ‘O_CREAT’ undeclared (first use in this function)
+  if((fd=open(DATA_FILENAME,O_WRONLY|O_CREAT|O_TRUNC,0644))<0)
+                                     ^
+07_01.c:10:45: error: ‘O_TRUNC’ undeclared (first use in this function)
+  if((fd=open(DATA_FILENAME,O_WRONLY|O_CREAT|O_TRUNC,0644))<0)
+                                             ^
+07_01.c:12:5: warning: implicit declaration of function ‘Write’ [-Wimplicit-function-declaration]
+  if(Write(fd,startTime,sizeof(*startTime))!=sizeof(*startTime))
+     ^
+07_01.c:14:2: warning: implicit declaration of function ‘close’ [-Wimplicit-function-declaration]
+  close(fd);
+  ^
+07_02.c:1:24: warning: ‘struct timeval’ declared inside parameter list
+ int restoreTime(struct timeval *startTime)
+                        ^
+07_02.c:1:24: warning: its scope is only this definition or declaration, which is probably not what you want
+07_02.c: In function ‘restoreTime’:
+07_02.c:4:6: error: ‘fd’ undeclared (first use in this function)
+  if((fd=open(DATA_FILENAME,O_RDONLY))<0)
+      ^
+07_02.c:4:6: note: each undeclared identifier is reported only once for each function it appears in
+07_02.c:4:9: warning: implicit declaration of function ‘open’ [-Wimplicit-function-declaration]
+  if((fd=open(DATA_FILENAME,O_RDONLY))<0)
+         ^
+07_02.c:4:14: error: ‘DATA_FILENAME’ undeclared (first use in this function)
+  if((fd=open(DATA_FILENAME,O_RDONLY))<0)
+              ^
+07_02.c:4:28: error: ‘O_RDONLY’ undeclared (first use in this function)
+  if((fd=open(DATA_FILENAME,O_RDONLY))<0)
+                            ^
+07_02.c:6:5: warning: implicit declaration of function ‘read’ [-Wimplicit-function-declaration]
+  if(read(fd,strtTime,sizeof(*startTime))!=sizeof(*startTime))
+     ^
+07_02.c:6:13: error: ‘strtTime’ undeclared (first use in this function)
+  if(read(fd,strtTime,sizeof(*startTime))!=sizeof(*startTime))
+             ^
+07_02.c:6:29: error: dereferencing pointer to incomplete type ‘struct timeval’
+  if(read(fd,strtTime,sizeof(*startTime))!=sizeof(*startTime))
+                             ^
+07_02.c:8:2: warning: implicit declaration of function ‘close’ [-Wimplicit-function-declaration]
+  close(fd);
+  ^
+07_04.c: In function ‘lastTime’:
+07_04.c:3:17: error: storage size of ‘startTime’ isn’t known
+  struct timeval startTime,lastTime;
+                 ^
+07_04.c:3:27: error: storage size of ‘lastTime’ isn’t known
+  struct timeval startTime,lastTime;
+                           ^
+07_04.c:5:5: warning: implicit declaration of function ‘restoreTime’ [-Wimplicit-function-declaration]
+  if(restoreTime(&startTime)<0)
+     ^
+07_04.c:6:3: warning: implicit declaration of function ‘exit’ [-Wimplicit-function-declaration]
+   exit(EXIT_FAILRE);
+   ^
+07_04.c:6:3: warning: incompatible implicit declaration of built-in function ‘exit’
+07_04.c:6:3: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’
+07_04.c:6:8: error: ‘EXIT_FAILRE’ undeclared (first use in this function)
+   exit(EXIT_FAILRE);
+        ^
+07_04.c:6:8: note: each undeclared identifier is reported only once for each function it appears in
+07_04.c:7:2: warning: implicit declaration of function ‘gettimeofday’ [-Wimplicit-function-declaration]
+  gettimeofday(&lastTime,NULL);
+  ^
+07_04.c:7:25: error: ‘NULL’ undeclared (first use in this function)
+  gettimeofday(&lastTime,NULL);
+                         ^
+07_04.c:8:2: warning: implicit declaration of function ‘printDiff’ [-Wimplicit-function-declaration]
+  printDiff(&lastTime,&startTime);
+  ^
+07_04.c:9:2: warning: incompatible implicit declaration of built-in function ‘exit’
+  exit(EXIT_SUCCESS);
+  ^
+07_04.c:9:2: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’
+07_04.c:9:7: error: ‘EXIT_SUCCESS’ undeclared (first use in this function)
+  exit(EXIT_SUCCESS);
+       ^
+07_05.c:1:42: warning: ‘struct timeval’ declared inside parameter list
+ void printDiff(struct timeval *t1,struct timeval *t2)
+                                          ^
+07_05.c:1:42: warning: its scope is only this definition or declaration, which is probably not what you want
+07_05.c: In function ‘printDiff’:
+07_05.c:3:17: error: storage size of ‘diff’ isn’t known
+  struct timeval diff;
+                 ^
+07_05.c:5:2: warning: implicit declaration of function ‘timersub’ [-Wimplicit-function-declaration]
+  timersub(t1,t2,&diff);
+  ^
+07_05.c:6:2: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration]
+  printf("%02lu:%2lu.%02lu\n",
+  ^
+07_05.c:6:2: warning: incompatible implicit declaration of built-in function ‘printf’
+07_05.c:6:2: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
+main.c: In function ‘main’:
+main.c:23:7: warning: implicit declaration of function ‘initTime’ [-Wimplicit-function-declaration]
+    if(initTime(&startTime)<0)
+       ^
+$
+```