VC6中有_FILE_ _LINE_ 这样的宏吗?解决方法
VC6中有__FILE__ __LINE__ 这样的宏吗?
VC6中有__FILE__ __LINE__ 这样的宏吗?
TRACE(L".................%s....%d..\n", __FILE__, __LINE__);
<----这样就可以把具体位置信息输出了.
------解决方案--------------------
有的，你把那句话编译一下输出就证明了
------解决方案--------------------
我一般习惯用logfile.h这个日志，直接写到文件里。
另外，__FILE__ __LINE__ 本来在VC6中就能用啊？
------解决方案--------------------
__FILE__ 是 char 数组，不是 wchar_t，前面不用 L。
------解决方案--------------------
__FILE__, __LINE__ 都是char数组，如果你的__FILE__中包含中文肯定是乱码的，你得转换成Unicode才行
------解决方案--------------------
Predefined Macros
The compiler recognizes six predefined ANSI C macros (see Table 1.1), and the Microsoft C++ implementation provides several more (see Table 1.2). These macros take no arguments and cannot be redefined. Their value (except for __LINE__ and __FILE__) must be constant throughout compilation. Some of the predefined macros listed below are defined with multiple values. Their values can be set by selecting the corresponding menu option in the Visual C++ development environment, or by using a command-line switch. See the tables below for more information.
Table 1.1 ANSI Predefined Macros
Macro Description
__DATE__ The compilation date of the current source file. The date is a string literal of the form Mmm dd yyyy. The month name Mmm is the same as for dates generated by the library function asctime declared in TIME.H.
__FILE__ The name of the current source file. __FILE__ expands to a string surrounded by double quotation marks.
__LINE__ The line number in the current source file. The line number is a decimal integer constant. It can be altered with a #line directive.
__STDC__ Indicates full conformance with the ANSI C standard. Defined as the integer constant 1 only if the /Za compiler option is given and you are not compiling C++ code; otherwise is undefined.
__TIME__ The most recent compilation time of the current source file. The time is a string literal of the form hh:mm:ss.
__TIMESTAMP__ The date and time of the last modification of the current source file, expressed as a string literal in the form Ddd Mmm Date hh:mm:ss yyyy, where Ddd is the abbreviated day of the week and Date is an integer from 1 to 31.
Table 1.2 Microsoft-Specific Predefined Macros
Macro Description
_CHAR_UNSIGNED Default char type is unsigned. Defined when /J is specified.
__cplusplus Defined for C++ programs only.
_CPPRTTI Defined for code compiled with /GR (Enable Run-Time Type Information).
_CPPUNWIND Defined for code compiled with /GX (Enable Exception Handling).
_DLL Defined when /MD or /MDd (Multithread DLL) is specified.
_M_ALPHA Defined for DEC ALPHA platforms. It is defined as 1 by the ALPHA compiler, and it is not defined if another compiler is used.
_M_IX86 Defined for x86 processors. See Table 1.3 for more details.
_M_MPPC Defined for Power Macintosh platforms. Default is 601 (/QP601). See Table 1.4 for more details.
_M_MRX000 Defined for MIPS platforms. Default is 4000 (/QMR4000). See Table 1.5 for more details.
_M_PPC Defined for PowerPC platforms. Default is 604 (/QP604). See Table 1.6 for more details.
_MFC_VER Defines the MFC version. Defined as 0x0421 for Microsoft Foundation Class Library 4.21. Always defined.
_MSC_EXTENSIONS This macro is defined when compiling with the /Ze compiler option (the default). Its value, when defined, is 1.
VC6中有__FILE__ __LINE__ 这样的宏吗?
TRACE(L".................%s....%d..\n", __FILE__, __LINE__);
<----这样就可以把具体位置信息输出了.
------解决方案--------------------
有的，你把那句话编译一下输出就证明了
------解决方案--------------------
我一般习惯用logfile.h这个日志，直接写到文件里。
另外，__FILE__ __LINE__ 本来在VC6中就能用啊？
------解决方案--------------------
__FILE__ 是 char 数组，不是 wchar_t，前面不用 L。
------解决方案--------------------
__FILE__, __LINE__ 都是char数组，如果你的__FILE__中包含中文肯定是乱码的，你得转换成Unicode才行
------解决方案--------------------
Predefined Macros
The compiler recognizes six predefined ANSI C macros (see Table 1.1), and the Microsoft C++ implementation provides several more (see Table 1.2). These macros take no arguments and cannot be redefined. Their value (except for __LINE__ and __FILE__) must be constant throughout compilation. Some of the predefined macros listed below are defined with multiple values. Their values can be set by selecting the corresponding menu option in the Visual C++ development environment, or by using a command-line switch. See the tables below for more information.
Table 1.1 ANSI Predefined Macros
Macro Description
__DATE__ The compilation date of the current source file. The date is a string literal of the form Mmm dd yyyy. The month name Mmm is the same as for dates generated by the library function asctime declared in TIME.H.
__FILE__ The name of the current source file. __FILE__ expands to a string surrounded by double quotation marks.
__LINE__ The line number in the current source file. The line number is a decimal integer constant. It can be altered with a #line directive.
__STDC__ Indicates full conformance with the ANSI C standard. Defined as the integer constant 1 only if the /Za compiler option is given and you are not compiling C++ code; otherwise is undefined.
__TIME__ The most recent compilation time of the current source file. The time is a string literal of the form hh:mm:ss.
__TIMESTAMP__ The date and time of the last modification of the current source file, expressed as a string literal in the form Ddd Mmm Date hh:mm:ss yyyy, where Ddd is the abbreviated day of the week and Date is an integer from 1 to 31.
Table 1.2 Microsoft-Specific Predefined Macros
Macro Description
_CHAR_UNSIGNED Default char type is unsigned. Defined when /J is specified.
__cplusplus Defined for C++ programs only.
_CPPRTTI Defined for code compiled with /GR (Enable Run-Time Type Information).
_CPPUNWIND Defined for code compiled with /GX (Enable Exception Handling).
_DLL Defined when /MD or /MDd (Multithread DLL) is specified.
_M_ALPHA Defined for DEC ALPHA platforms. It is defined as 1 by the ALPHA compiler, and it is not defined if another compiler is used.
_M_IX86 Defined for x86 processors. See Table 1.3 for more details.
_M_MPPC Defined for Power Macintosh platforms. Default is 601 (/QP601). See Table 1.4 for more details.
_M_MRX000 Defined for MIPS platforms. Default is 4000 (/QMR4000). See Table 1.5 for more details.
_M_PPC Defined for PowerPC platforms. Default is 604 (/QP604). See Table 1.6 for more details.
_MFC_VER Defines the MFC version. Defined as 0x0421 for Microsoft Foundation Class Library 4.21. Always defined.
_MSC_EXTENSIONS This macro is defined when compiling with the /Ze compiler option (the default). Its value, when defined, is 1.