Depending on theformatstring, the function may expect a sequence of additional arguments, each containing a value to be used to replace aformat specifierin theformatstring (or a pointer to a storage location, forn). There should be at least as many of these arguments as the number of values...
int*p;p=(int*)malloc(1234);printf("pointer=%p\n",p);free(p); 说明:以上代码输出地址变量p的值。
wprintf是printf的宽字符版本;format是宽字符字符串。 如果在 ANSI 模式下打开流,则wprintf和printf的行为相同。printf当前不支持到 UNICODE 流中的输出。 这些带有_l后缀的函数的版本相同,只不过它们使用传递的区域设置参数而不是当前线程区域设置。 format自变量由普通字符、转义序列和(如果自变量遵循format)格式规范组成...
它的函数原型如下: intprintf(constchar*restrictformat,...); format参数表示是一个格式串,而后面的...则表示变长参数,关于变长参数我后面会举例说明。 format很明显可以看出,这是一个字符串常量,这个字符串常量中可以放任意你想输出的字符或字符串,另外还可以放入一些格式占位符 关于格式占位符: %i或%d:输出in...
- \%p to print a pointer as a hexadecimal value//! - \%\% to print out a \% character//!//! For \%s, \%d, \%u, \%p, \%x, and \%X, an optional number may reside//! between the \% and the format character, which specifies the minimum number//! of characters to use for...
API reference for vsnprintf, _vsnprintf, _vsnprintf_l, _vsnwprintf, and _vsnwprintf_l; which write formatted output using a pointer to a list of arguments.
...(additional arguments)Depending on theformatstring, the function may expect a sequence of additional arguments, each containing a value to be used to replace aformat specifierin theformatstring (or a pointer to a storage location, forn). ...
Legal for integer conversions (d, i, o, u, x, or X conversion letters), specifies the matching argument is asigned charfor d and i, andunsigned charfor o, u, x, and X. For annconversion letter the matching argument is a pointer to asigned char. (New as of C99.) ...
pPointerPointer to void converted to a sequence of printable characters. Refer to the individual system reference guides for the specific format. a, A Double _Decimal32 _Decimal64 _Decimal128 A double argument representing a floating-point number is converted to the“[-]0xh.hhhhp±d”format...
Format specification. argptr Pointer to list of arguments. locale The locale to use. Return Value vsnprintf,_vsnprintf, and _vsnwprintf return the number of characters written if the number of characters to write is less than or equal to count; if the number of characters to write i...