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MINOR: compiler: add a simple macro to concatenate resolved strings

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It's often useful to be able to concatenate strings after resolving
them (e.g. __FILE__, __LINE__ etc). Let's just have a CONCAT() macro
to do that, which calls _CONCAT() with the same arguments to make
sure the contents are resolved before being concatenated.
This commit is contained in:
Willy Tarreau 2025-03-12 18:06:55 +01:00
parent 12383fd9f5
commit bb4addabb7
1 changed files with 4 additions and 0 deletions
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4
include/haproxy/compiler.h
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@ -283,6 +283,10 @@
#define _TOSTR(x) #x
#define TOSTR(x) _TOSTR(x)
/* concatenates the two strings after resolving possible macros */
#define _CONCAT(a,b) a ## b
#define CONCAT(a,b) _CONCAT(a,b)
/*
* Gcc >= 3 provides the ability for the program to give hints to the
* compiler about what branch of an if is most likely to be taken. This