What is the value range of char in C language

The value range of char in C depends on the implementation method: signed char: -128 to 127 Unsigned char: 0 to 255 The specific range is affected by computer architecture and compiler options. By default, char is set to a signed type.

The value range of char in C language

answer:

The value range of the char type in C language depends on the implementation method:

Signed char:

• Minimum value: -128 (-2^7)
• Maximum value: 127 (2^7 - 1)

Unsigned char:

• Minimum value: 0
• Maximum value: 255 (2^8 - 1)

Factors influencing:

• Computer architecture: 32-bit or 64-bit
• Compiler options: You can set char to signed or unsigned type

Default settings:

• Most C language implementations set char to signed type by default.

Example:

 <code class="c">#include <stdio.h> int main() { signed char signed_char = -128; unsigned char unsigned_char = 255; printf("有符号char 的最小值：%d\n", signed_char); printf("无符号char 的最大值：%u\n", unsigned_char); return 0; }</stdio.h></code>

Output:

<code>有符号char 的最小值：-128无符号char 的最大值：255</code>

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