Format specifiers fetch arguments from the argument list and apply formatting to them. Note: See scanf Format Specifiers and printf Format Specifiers. C-runtime Format Types: Specifier Meaning d, i Decimal or integer. The argument must be an integer value. The value is converted to a ...
specifiers Note regarding thecspecifier: it takes anint(orwint_t) as argument, but performs the proper conversion to acharvalue (or awchar_t) before formatting it for output. Note:Yellow rows indicate specifiers and sub-specifiers introduced by C99. See<cinttypes>for the specifiers for extended...
In this C programming language tutorial we take another look at the printf function. We will look at how to use format specifiers to print formatted output onto the screen. The topics covered are; a little printf background, format specifiers and conversions, formatting of different types and f...
Objective-C 格式化字符串Format 转自: http://blog.csdn.net/tangaowen/article/details/7352382 在使用诸如NSLog, [NSString stringWithFormat:]之类的函数时,都是基于c/c++风格的字符串格式化工作的. Table 1 Format specifiers supported by the NSString formatting methods and CFString formatting functions 平台依...
Formatting Output When printing floating-point numbers, you can use format specifiers in functions like printf to display numbers in scientific notation:printf("%e\n", a); // Output in scientific notation printf("%f\n", b); // Output in fixed-point notation ...
Table2Format specifiersfordata types 类型 定义 建议 NSInteger%ld or %lx Cast the value tolongNSUInteger%lu or %lx Cast the value to unsignedlongCGFloat%f or %g %f worksforfloats and doubles when formatting; but see below warning when scanning ...
The following example demonstrates the importance of format specifiers − #include<stdio.h>intmain(){charstr[100];printf("Enter a value: ");gets(str);printf("\nYou entered: ");puts(str);return0;} Output When the above code is compiled and executed, it waits for you to input some ...
These specifiers can be combined with modifiers to control the width, precision, and alignment of the output. For instance, %10d will display an integer with a minimum width of 10 characters. In addition to displaying values, printf can also perform basic formatting operations. For example, the...
9.3 Formatting Output with printf 315 9.4 Printing Integers 315 9.5 Printing Floating-Point Numbers 316 9.6 Printing Strings and Characters 318 9.7 Other Conversion Specifiers 318 9.8 Printing with Field Widths and Precision 319 9.9 Using Flags in the printf Format Control...