atof
- Updated2023-02-21
- 1 minute(s) read
atof
double atof (const char stringInput[]);
Purpose
Converts the initial portion of a string to a double representation. This function is equivalent to the following:
strtod(stringInput, (char **) NULL)
Parameters
| Input | ||
| Name | Type | Description |
| stringInput | const char [] | Contains a pointer to the character sequence from which a conversion is made. |
Return Value
| Name | Type | Description |
| convertedValue | double | Contains the converted value, if any. If no conversion is possible, the function returns zero. If the correct value is outside the range of representable values, atof returns ± HUGE_VAL, according to the sign of the value, and sets errno to ERANGE. If the correct value causes underflow, the function returns zero. |
Additional Information
Library: ANSI C Library
Include file: ansi_c.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later