bit_shift: add a comment explaining what the check does
[smatch.git] / target.h
blob1030c7c38993fc4778a53e36f9be627318ea4854
1 #ifndef TARGET_H
2 #define TARGET_H
4 extern struct symbol *size_t_ctype;
5 extern struct symbol *ssize_t_ctype;
7 /*
8 * For "__attribute__((aligned))"
9 */
10 extern int max_alignment;
13 * Integer data types
15 extern int bits_in_bool;
16 extern int bits_in_char;
17 extern int bits_in_short;
18 extern int bits_in_int;
19 extern int bits_in_long;
20 extern int bits_in_longlong;
21 extern int bits_in_longlonglong;
23 extern int max_int_alignment;
26 * Floating point data types
28 extern int bits_in_float;
29 extern int bits_in_double;
30 extern int bits_in_longdouble;
32 extern int max_fp_alignment;
35 * Pointer data type
37 extern int bits_in_pointer;
38 extern int pointer_alignment;
41 * Enum data types
43 extern int bits_in_enum;
44 extern int enum_alignment;
47 * Helper functions for converting bits to bytes and vice versa.
50 static inline int bits_to_bytes(int bits)
52 return bits >= 0 ? bits / bits_in_char : -1;
55 static inline int bytes_to_bits(int bytes)
57 return bytes * bits_in_char;
60 #endif