About print information bug

[adrian-yehe]

The printed information is different from the expected result。
code:
#define SMMU_VER_MAJOR (3) #define SMMU_VER_MINOR (0) #define SMMU_VER_PATCH (1) spdlog::info("Welcome to SMMU version 0x{0:x}.{0:d}.0x{0:x} !", SMMU_VER_MAJOR, SMMU_VER_MINOR, SMMU_VER_PATCH);
result:

[2022-11-29 16:04:12.577] [info] Welcome to SMMU version 0x3.3.0x3 !
but i want to show information below:
[2022-11-29 16:04:12.577] [info] Welcome to SMMU version 0x3.3.0x01 !

[tt4g]

Your syntax of fmt library is wrong. Replace last syntax 0x{0:x} with 0x{:#02d} for padding left.

-#define SMMU_VER_MAJOR (3) #define SMMU_VER_MINOR (0) #define SMMU_VER_PATCH (1) spdlog::info("Welcome to SMMU version 0x{0:x}.{0:d}.0x{0:x} !", SMMU_VER_MAJOR, SMMU_VER_MINOR, SMMU_VER_PATCH);
+#define SMMU_VER_MAJOR (3) #define SMMU_VER_MINOR (0) #define SMMU_VER_PATCH (1) spdlog::info("Welcome to SMMU version 0x{0:x}.{0:d}.0x{:#02d} !", SMMU_VER_MAJOR, SMMU_VER_MINOR, SMMU_VER_PATCH);

See fmt syntax: https://fmt.dev/9.0.0/syntax.html

[adrian-yehe]

thanks; should be written like this:

#define SMMU_VER_MAJOR (3) #define SMMU_VER_MINOR (0) #define SMMU_VER_PATCH (1) spdlog::info("Welcome to SMMU version 0x{0:x}.{1:d}.0x{2:d} !", SMMU_VER_MAJOR, SMMU_VER_MINOR, SMMU_VER_PATCH);