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Issue #21490: Add new C macros: Py_ABS() and Py_STRINGIFY()

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Keep _Py_STRINGIZE() in PC/pyconfig.h to not introduce a dependency between
pyconfig.h and pymacros.h.
This commit is contained in:
Victor Stinner 2014-05-14 17:24:35 +02:00
parent 79b49ab553
commit 45e8e2f218
7 changed files with 60 additions and 59 deletions
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15
Include/pymacro.h
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@ -1,13 +1,26 @@
#ifndef Py_PYMACRO_H
#define Py_PYMACRO_H
/* Minimum value between x and y */
#define Py_MIN(x, y) (((x) > (y)) ? (y) : (x))
/* Maximum value between x and y */
#define Py_MAX(x, y) (((x) > (y)) ? (x) : (y))
/* Absolute value of the number x */
#define Py_ABS(x) ((x) < 0 ? -(x) : (x))
#define _Py_XSTRINGIFY(x) #x
/* Convert the argument to a string. For example, Py_STRINGIFY(123) is replaced
with "123" by the preprocessor. Defines are also replaced by their value.
For example Py_STRINGIFY(__LINE__) is replaced by the line number, not
by "__LINE__". */
#define Py_STRINGIFY(x) _Py_XSTRINGIFY(x)
/* Argument must be a char or an int in [-128, 127] or [0, 255]. */
#define Py_CHARMASK(c) ((unsigned char)((c) & 0xff))
/* Assert a build-time dependency, as an expression.
Your compile will fail if the condition isn't true, or can't be evaluated