intptr_t和uintptr_t的字符串格式

Question

什么是字符串格式intptr_t, uintptr_t 哪个对32位和64位架构都有效.

编辑

warning: format ‘%x’ expects type ‘unsigned int’, but argument 2 has type "AAA"

这是我在64位但不是32位的警告.

  intptr_t  AAA

Answer 1

这将是以下宏inttypes.h:

用于printf: PRIdPTR PRIiPTR PRIoPTR PRIuPTR PRIxPTR PRIXPTR

用于scanf: SCNdPTR SCNiPTR SCNoPTR SCNuPTR SCNxPTR

用法示例:

uintptr_t p = SOME_VALUE;
printf("Here's a pointer for you: %" PRIxPTR "\n", p);