X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fstrutil.c;h=30e992b815468e5a86c1210652b3a19aece2720b;hb=755eb221565ae83d8e80e97615b84e2fff4580dd;hp=5f0deb7708f374327b6c5d33e7649ca3da342948;hpb=1f488f50b91a67ffc85aa36cea63f09b580aa36e;p=libsigrok.git diff --git a/src/strutil.c b/src/strutil.c index 5f0deb77..30e992b8 100644 --- a/src/strutil.c +++ b/src/strutil.c @@ -169,6 +169,38 @@ SR_PRIV int sr_atof(const char *str, float *ret) return SR_OK; } +/** + * @private + * + * Convert a string representation of a numeric value to a double. The + * conversion is strict and will fail if the complete string does not represent + * a valid double. The function sets errno according to the details of the + * failure. This version ignores the locale. + * + * @param str The string representation to convert. + * @param ret Pointer to double where the result of the conversion will be stored. + * + * @retval SR_OK Conversion successful. + * @retval SR_ERR Failure. + */ +SR_PRIV int sr_atod_ascii(const char *str, double *ret) +{ + double tmp; + char *endptr = NULL; + + errno = 0; + tmp = g_ascii_strtod(str, &endptr); + + if (!endptr || *endptr || errno) { + if (!errno) + errno = EINVAL; + return SR_ERR; + } + + *ret = tmp; + return SR_OK; +} + /** * @private *