diff options
Diffstat (limited to 'AGENTS/PITFALLS/core-language.md')
| -rw-r--r-- | AGENTS/PITFALLS/core-language.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/AGENTS/PITFALLS/core-language.md b/AGENTS/PITFALLS/core-language.md index 5018fb3..05793e7 100644 --- a/AGENTS/PITFALLS/core-language.md +++ b/AGENTS/PITFALLS/core-language.md @@ -32,8 +32,8 @@ source, most also by compiling and running test programs. - **`/` always yields REAL** (double FDiv), even for two INTEGERs; integer division is DIV/MOD only. - CHR returns CHAR, not STRING; CHR(0) is a NUL CHAR that converts to a one-byte STRING. - - STR_TO_NUM always returns REAL and shares parseNumber (strtod, full consumption, overflow rejected, only `0-9 . e E + -` after leading whitespace, so no nan/inf/hex) with IS_NUM and INPUT REAL (`__cps_parse_real` in InputGen.cc); change them together. - - NUM_TO_STR keeps the full signed i64 range for INTEGER; REAL uses the shortest + - STR_TO_NUM defaults to REAL and shares parseNumber (strtod, full consumption, overflow rejected, only `0-9 . e E + -` after leading whitespace, so no nan/inf/hex) with IS_NUM and INPUT REAL (`__cps_parse_real` in InputGen.cc); change them together. Its INTEGER overload applies INT to the parsed REAL, inheriting REAL rounding and truncating toward zero with a range check. + - NUM_TO_STR defaults to STRING; its CHAR overload uses the same text and requires length 1. It keeps the full signed i64 range for INTEGER; REAL uses the shortest round-trip text (realText in string.cc), byte-identical to OUTPUT's IR helper in OutputGen.cc (`__cps_output_real`); change both together. C_DOUBLE output keeps `%f`. - **`getExprTypeInfo` returns nullptr** for expressions it can't classify (null-check |