6502/cc65
1
0
Fork 0
mirror of https://github.com/cc65/cc65.git synced 2024-12-24 11:31:31 +00:00
Code Issues Projects Releases Wiki Activity

Small fixes according to PR review.

Browse Source
This commit is contained in:
acqn 2020-07-27 18:25:28 +08:00 committed by Oliver Schmidt
parent 35e1efc7f2
commit 0f412b6beb
2 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/cc65/datatype.c
View File

@ -278,7 +278,8 @@ long GetIntegerTypeMin (const Type* Type)
/* Get the smallest possible value of the integer type */
{
if (IsSignSigned (Type)) {
return (long)(0xFFFFFFFF << (CHAR_BITS * SizeOf (Type) - 1U));
/* The smallest possible signed value of N-byte integer is -pow(2, 8*N-1) */
return (long)((unsigned long)(-1L) << (CHAR_BITS * SizeOf (Type) - 1U));
} else {
return 0;
}
@ -290,9 +291,14 @@ unsigned long GetIntegerTypeMax (const Type* Type)
/* Get the largest possible value of the integer type */
{
if (IsSignSigned (Type)) {
/* Min signed value of N-byte integer is pow(2, 8*N-1) - 1 */
return (1UL << (CHAR_BITS * SizeOf (Type) - 1U)) - 1UL;
} else {
return (1UL << (CHAR_BITS * SizeOf (Type))) - 1UL;
/* Max signed value of N-byte integer is pow(2, 8*N) - 1. However,
** workaround is needed as in ISO C it is UB if the shift count is
** equal to the bit width of the left operand type.
*/
return (1UL << 1U << (CHAR_BITS * SizeOf (Type) - 1U)) - 1UL;
}
}

2
src/cc65/declare.c
View File

@ -686,7 +686,7 @@ static int ParseFieldWidth (Declaration* Decl)
ConstAbsIntExpr (hie1, &Expr);
if (!IsClassInt (Decl->Type)) {
/* Only integer types may be used for bit-fields */
Error ("Bit-field has invalid type ''");
Error ("Bit-field has invalid type '%s'", GetBasicTypeName (Decl->Type));
return -1;
}
if (Expr.IVal < 0) {