1. 解释错误消息 "[error] cast from 'int*' to 'int' loses precision [-fpermissive]" 的含义 这条错误消息表明,在C++代码中尝试将一个指向整数的指针(int*)强制转换为整数(int)类型,但这种转换会丢失精度。在64位系统上,指针通常占用8个字节,而int类型通常占用4个字节。因此,将8字节的指针值直接转换为...
Home Question error: cast from 'void*' to 'int' loses precision If you call your thread creation function like thispthread_create(&thread, NULL, myFcn, reinterpret_cast<void*>(5)); then the void* arriving inside of myFcn has the value of the int you put into it. So you know you ...
char*ptr;//此后省略部分代码if( (int)ptr==-1)//出错地方 那句话的意思是从 void* 到 int 的转换丢失精度,相信看到解释有些人就明白了, 此问题只会出现在X64位的Linux上,因为在64位的机器上指针占用8个字节,int 占用四个字节,所以才会出现这样的问题, 解决方法: (long)ptr == -1 就好了...
linux 编译error: loses precision [-fpermissive] 2019-07-03 11:13 −这是因为Linux 64位系统上指针类型占用8个字节,而int类型占用4个字节,所以会出现loses precision(转换精度丢失)。 可以先将int* 转成long类型,long类型可以隐式类型转换到int类型,如下: int func() { int *p; p = //赋值 r... ...
关于Linux下C编译错误(警告)cast from 'void*' to 'int' loses precision 2016-09-09 11:03 −... jiu~ 1 8476 C文件 CMakeList.txt编译器配置错误的问题 error:invalid conversion from 'int' to 'LAYER_TYPE' [-fpermissive]... 2019-12-10 15:17 −在编译C工程时,遇到了如下错误: 一般看到...
because it can be used to generate CAR-T cells with particular precision, enhancing safety and efficacy. But this is just one of the many applications of CRISPR/Cas9 technology. ToolGen’s patent application for example suggests using CRISPR/Cas9 technology to develop enhanced crops and animals. ...
(crnd::crnd_assert(#_exp, __FILE__, __LINE__), 0) ) ^ crunch/crn_decomp.h: In function ‘void* crnd::crnd_realloc(void*, size_t, size_t*, bool)’: crunch/crn_decomp.h:2561:28: error: cast from ‘void*’ to ‘crnd::uint32 {aka unsigned int}’ loses precision [-...
XXXXXXXXXXXXXX/extern/zip/src/zip.c:479:49: fatal error: implicit conversion loses integer precision: 'ssize_t' (aka 'long') to 'mz_uint' (aka 'unsigned int') [-Wshorten-64-to-32] 479 | if (!mz_zip_reader_file_stat(&zip->archive, i, &file_stat)) { | ~~~ ^ 1 error gene...
该这里是因为基于Linux内核的64位系统上指针类型占用8个字节,而int类型占用4个字节,所以会出现loses precision。 可以先将int* 转成long类型,long类型可以隐式类型转换到int类型。直接修改为long long或者long即可 修改: long m_MinValidLen = (long)(&(((DataOnAir *)0)->rx_ts_s));...
loses precision [-fpermissive]| C:\Work\SDK\Apps\Doxygen_source\qtools\qcstring.cpp|346|error: cast from 'const char*' to 'long int' loses precision [-fpermissive]| C:\Work\SDK\Apps\Doxygen_source\qtools\qcstring.cpp||In function 'int qstricmp(const char*, const char*)':| C:\Work...