int32_t a, b;a = foo();if (a) {int32_t c, d; /* OK, c and d are in if-statement scope */ c = foo();int32_t e; /* Wrong, there was already executable statement inside block */} 用星号声明指针变量与类型对齐 /* OK */
Sometimes when the condition in an if statement evaluates to false, it would be nice to execute some code instead of the code executed when the statement evaluates to true. The "else" statement effectively says that whatever code after it (whether a single line or code between brackets) is ...
int32_t b; /* Wrong, there is already executable statement */ } 你可以在下一个缩进级别中声明新的变量 int32_t a, b; a = foo(); if (a) { int32_t c, d; /* OK, c and d are in if-statement scope */ c = foo(); int32_t e; /* Wrong, there was already executable sta...
Use a pure-block, fully bracketed style for blocks of code. This means put brackets around all conditional code blocks, even one-line blocks. if(statement ==true) {foo_true(); }else{foo_false(); } 2.5 Spaces Insert space padding around operators. E.g., if(foo ==2) a =bar((b -...
statement has no consequent: else when inserted between the else and semicolon; statement has no consequent: if NOTE(FALLTHRU) /*FALLTHRU*/ Suppresses complaints about a fall through to a case or default labelled statement. This directive should be placed immediately preceding the label....
Task<int> returnedTaskTResult = GetTaskOfTResultAsync();intintResult =awaitreturnedTaskTResult;// Single line// int intResult = await GetTaskOfTResultAsync();asyncTaskGetTaskAsync(){awaitTask.Delay(0);// No return statement needed}
本章按字母顺序介绍 C 编译器选项。有关按功能分组的选项,请参见附录 A,按功能分组的编译器选项。例如,表 A–1列出了所有优化和性能选项。 请注意,缺省情况下,C 编译器识别 1999 ISO/IEC C 标准的某些构造。具体来说,附录 D,支持的 C99 功能中详细介绍了受支持的功能。如果要用 1990 ISO/IEC C 标准限制...
If “Allow repeated calls” is unselected, multiple calls from the same person do not go through. If “Allow repeated calls” isn’t selected, … See alsoradio button;select (v.). checkmark One word. See alsomenus. checkout (n., adj.), check out (v.) ...
if (0) NSLog(@"This line should not appear."); [pool drain]; return 0; } Unsurprisingly, the results are the same as above. One important point to make here: if you only have one statement after the if(), you can just leave it like it is above. But if you have more th...
structutsname name;if(-1== uname(&name))returnSYSINFO_RET_FAIL; Code that sets up the context forifandwhileconstructs should be separated fromifandwhileby a blank line, unless the body ofifandwhileconsists of a single statement: package = strtok(buf,"\n");while(NULL != package){......