"brk"和"sbrk"的几个问题

donet8

我知道brk/sbrk是操作内存的。但是他们的英文全称叫做什么呢? 搜了半天没找到啊。

flw

break

donet8

flw 发表于 2012-06-12 18:11
break

sbrk呢? s是什么的缩写?

donet8

下面这几行程序在mingw9(GCC4.7)和CentOS6(GCC4.4)上面都不能编译，提示找不到alloc.h。
为什么?

1. 
   
2. #include <stdio.h>   
   
3. #include <alloc.h>   
   
4. int main(void)   
   
5. {
   
6.    printf("The difference between the highest allocated block and\n");
   
7.    printf("the top of the heap is: %lu bytes\n", (unsigned long) coreleft());
   
8.    return 0;   
   
9. }
   

复制代码

donet8

我在windows上面:
  
D:\mytest>echo %INCLUDE%
C:\mingw-9\MinGW\include;C:\mingw-9\MinGW\lib\gcc\i686-pc-mingw32\4.7.0\include;
  
alloc.h就在C:\mingw-9\MinGW\include下面。
我重启一个cmd,用g++ abc.cpp还是提示:
  
abc.cpp:2:22: fatal error: alloc.h: No such file or directory
compilation terminated.