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| author | Patrik Nyblom <[email protected]> | 2010-06-08 09:59:30 +0200 |
|---|---|---|
| committer | Patrik Nyblom <[email protected]> | 2010-06-23 14:50:10 +0200 |
| commit | 01749000e1cdd379df0cbaefb5b49c27f2c496e9 (patch) | |
| tree | 9702f0205261e62dd261ec17beb6b3363c8f424f /erts/emulator/sys/unix/sys_float.c | |
| parent | c1e94fa9a6fe4ae717d35dfbd1b628dc2e06d26a (diff) | |
| download | otp-01749000e1cdd379df0cbaefb5b49c27f2c496e9.tar.gz otp-01749000e1cdd379df0cbaefb5b49c27f2c496e9.tar.bz2 otp-01749000e1cdd379df0cbaefb5b49c27f2c496e9.zip | |
Teach Unix sys_float.c to ignore underflow in list_to_float and return 0.0
OTP-7178
Diffstat (limited to 'erts/emulator/sys/unix/sys_float.c')
| -rw-r--r-- | erts/emulator/sys/unix/sys_float.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/erts/emulator/sys/unix/sys_float.c b/erts/emulator/sys/unix/sys_float.c index c59c99f65e..0a27b4cafb 100644 --- a/erts/emulator/sys/unix/sys_float.c +++ b/erts/emulator/sys/unix/sys_float.c @@ -799,8 +799,17 @@ sys_chars_to_double(char* buf, double* fp) } #ifdef NO_FPE_SIGNALS - if (errno == ERANGE && (*fp == 0.0 || *fp == HUGE_VAL || *fp == -HUGE_VAL)) { - return -1; + if (errno == ERANGE) { + if (*fp == HUGE_VAL || *fp == -HUGE_VAL) { + /* overflow, should give error */ + return -1; + } else if (t == s && *fp == 0.0) { + /* This should give 0.0 - OTP-7178 */ + errno = 0; + + } else if (*fp == 0.0) { + return -1; + } } #endif return 0; |