diff options
Diffstat (limited to 'Include/pyport.h')
| -rw-r--r-- | Include/pyport.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Include/pyport.h b/Include/pyport.h index d6fcf56..3991bc5 100644 --- a/Include/pyport.h +++ b/Include/pyport.h @@ -106,6 +106,17 @@ typedef Py_intptr_t Py_ssize_t; # error "Python needs a typedef for Py_ssize_t in pyport.h." #endif +/* Largest possible value of size_t. + SIZE_MAX is part of C99, so it might be defined on some + platforms. If it is not defined, (size_t)-1 is a portable + definition for C89, due to the way signed->unsigned + conversion is defined. */ +#ifdef SIZE_MAX +#define PY_SIZE_MAX SIZE_MAX +#else +#define PY_SIZE_MAX ((size_t)-1) +#endif + /* Largest positive value of type Py_ssize_t. */ #define PY_SSIZE_T_MAX ((Py_ssize_t)(((size_t)-1)>>1)) /* Smallest negative value of type Py_ssize_t. */ |