在C或C++编程中,当我们看到警告“warning: comparison between signed and unsigned integer expressions”时,这通常意味着我们正在将一个有符号整数(signed integer)与一个无符号整数(unsigned integer)进行比较。下面我将根据你的要求,详细解释这个警告的原因、影响以及解决方法。 1. 解释“signed”和“unsigned”整数的...
A warning - comparison betweensignedandunsignedinteger expressions [-Wsign-compare]1vector<int> histogram =Histogram(img);inttotal =0;for(inti =0; i != histogram.size(); ++i) { total += histogram[i]; }123456 警告的意思是一个无符号数整型与有符号整型最好不要比较。i是有符号整型,histogram....
这是个一般性质的警告, 只是提示你代码中存在 有符号和无符号的整型数据进行逻辑运算.这种警告是完全可以无视的, 因为编译器会自动处理的.
warning: parison beeen signed and unsigned integer express 如何解决？ 这是个一般性质的警告, 只是提示你程式码中存在 有符号和无符号的整型资料进行逻辑运算. 这种警告是完全可以无视的, 因为编译器会自动处理的.warning: parison beeen pointer and integer如何解决 scanf("%d",&g[i]);应该...
When designing functions that accept integer parameters, the choice between signed and unsigned types influences the function’s behavior and flexibility. Example: Function Parameter voidprintValue(intvalue){// Function body} Usingintas the parameter type implies that negative values are valid inputs. ...
你比较的两个变量类型不一致，一个是无符号的，一个是有符号的，你可以强制转换；int x=0;unsigned int y=0;if (x==(int)y) ...
New warning: "comparison of integer expressions of different signedness: ‘Py_ssize_t’ {aka ‘long int’} and ‘long unsigned int’ [-Wsign-compare]"#115391 Closed gh-115827: Fix compile warning inlongobject.c#115828 Merged MemberAuthor ...
test.cpp:56: warning: comparison between signed and unsigned integer expressions May 16, 2008 at 8:39pm Faldrax(324) The compiler is warning you that the comparisona<strlen(emuactive)is comparing a signed integer (a) with an unsigned integer (strlen returns a size_t, which is an unsigned...
list_ports_linux.cc:66:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int path_index = 0; path_index < glob_results.gl_pathc; path_index++)list_ports_linux.cc:246:31: warning: comparison between signed and unsigned integer expressions [-Wsign-...
Thus, on a PC, an 8-bit signed value of -1 is treated as a 255 when comparing against an unsigned value, and a 16-bit as 65535. It seems an int and long as both 32-bits on my system, but these could all be different on other architectures (on Arduino, and int is ...