int存放到void指针 参考博客:http://blog.chinaunix.net/uid-20548989-id-1667467.html 中断处理函数,需要把一个值存在 void * 中传给回调函数,然后在回调函数内部把 int 值从 void * 中取出。 把一个 int 存到 void * 变量需要先把它转换成 long, 这样能避免:warning: cast to pointer from integer of d...
I calculate an address as a uint16_t and then cast it to a void pointer to pass to a function to erase a block of Flash. That function copies the address into NVMADDR. I was finding WRERR was being set due to bit 25 of the pointer being set. uint16_t addr; ... addr = 0x20...
} 其实,在编译的时候GCC就已经给出了警告,Wpointer-to-int-cast意思是将指针转换为整型,二者大小不同。但我们大多数时候可能直接会忽略。 test.c: Infunction‘main’: test.c:13:12: warning: cast from pointer tointegerof different size [-Wpointer-to-int-cast] 13 | int ptr = (int)p; | ^ ...
其实,在编译的时候GCC就已经给出了警告,Wpointer-to-int-cast意思是将指针转换为整型,二者大小不同。但我们大多数时候可能直接会忽略。 代码语言:javascript 复制 test.c:Infunction‘main’:test.c:13:12:warning:cast from pointer to integerofdifferent size[-Wpointer-to-int-cast]13|int ptr=(int)p;|^...
编译器报错是 (void *)i 处,错误说明是 Error: cast to 'void *' from smaller integer type 'int'
针对你提出的编译错误 error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast],这里有一些详细的步骤和解释来帮助你解决这个问题: 1. 理解错误信息 错误信息表明,你尝试将一个整数类型转换为指针类型,但这两个类型的大小不匹配。这通常发生在64位系统上,其中指针通常是64位的,而...
其实,在编译的时候GCC就已经给出了警告,Wpointer-to-int-cast 意思是将指针转换为整型,二者大小不同。但我们大多数时候可能直接会忽略。 test.c: Infunction‘main’: test.c:13:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ...
/usr/ports/multimedia/obs-studio/work/obs-studio-29.1.2/plugins/obs-outputs/ftl-sdk/libftl/ingest.c:338:10: error: cast to 'OS_THREAD_ROUTINE' (aka 'void *') from smaller integer type 'int' [-Werror,-Wint-to-void-pointer-cast] return (OS_THREAD_ROUTINE)total_ingest_cnt; ^~~~ ...
Cast from pointer to smaller type ‘int‘ loses information 当void*转换为int时,会报错: Castfrompointer to smaller type ‘int‘ loses information 后来,发现这么修改即可: (int)(size_t)data
问题:自定义消息时,出现如下错误:error C2440: 'type cast' : cannot convert from 'int *' to 'void (__thiscall CCmdTarget::*)(void)' ,There is no context in which this conversion is possible 解决: 看自定义的消息映射是否放错位置: