conversion.c File Reference

String to number conversion implementation. More...

#include "utils/conversion.h"

Include dependency graph for conversion.c:

Functions
int32_t	str_to_int (const char *s)
	Convert string to 32-bit signed integer.
float	str_to_float (const char *s)
	Convert string to floating-point number.

Detailed Description

String to number conversion implementation.

This file provides functions for converting string representations of numbers to their corresponding integer and floating-point values. The implementation handles:

• Leading/trailing whitespace
• Optional sign indicators (+/-)
• Decimal points for floating numbers
• Partial number parsing (stops at first invalid character)

Note

These are blocking implementations that parse until first invalid character

No overflow/underflow checking is performed

Does not support scientific notation or hexadecimal formats

Copyright

© NAVROBOTEC PVT. LTD.

Function Documentation

str_to_float()

float str_to_float

(

const char *

s

)

Convert string to floating-point number.

Convert a string to a floating-point number.

Parameters

[in]

s

Pointer to null-terminated input string

Returns

Converted floating-point value

Parses the input string to construct a float value:

1. Skips leading whitespace
2. Processes optional sign
3. Handles both integer and fractional parts
4. Properly tracks decimal point position
5. Stops at first invalid character

Warning

Limited precision for fractional components

No overflow/underflow protection

float val = str_to_float(" 3.1415xyz"); // Returns 3.1415f

str_to_int()

int32_t str_to_int

(

const char *

s

)

Convert string to 32-bit signed integer.

Convert a string to a 32-bit signed integer.

Parameters

[in]

s

Pointer to null-terminated input string

Returns

Converted 32-bit integer value

Parses the input string character by character to construct the integer value:

1. Skips any leading whitespace (spaces/tabs)
2. Processes optional sign character (+/-)
3. Converts subsequent digit characters to integer value
4. Stops at first non-digit character

Warning

Potential for overflow with large numbers

No error reporting for invalid inputs

int val = str_to_int(" -1234abc"); // Returns -1234