acpi/acpica/utstrtoul64.c

17  * This module contains the top-level string to 64/32-bit unsigned integer
23  *     constants than the runtime (interpreter) integer-to-string conversions.
34  *  debugger    - Command line input string conversion
51  * support (explicit/implicit) for octal string conversions.
58  * PARAMETERS:  string                  - Null terminated input string,
66  * DESCRIPTION: Convert a string into an unsigned integer. Always performs a
80 acpi_status acpi_ut_strtoul64(char *string, u64 *return_value)
86 	ACPI_FUNCTION_TRACE_STR(ut_strtoul64, string);
90 	/* A NULL return string returns a value of zero */
92 	if (*string == 0) {
96 	if (!acpi_ut_remove_whitespace(&string)) {
103 	if (acpi_ut_detect_hex_prefix(&string)) {
111 	else if (acpi_ut_detect_octal_prefix(&string)) {
115 	if (!acpi_ut_remove_leading_zeros(&string)) {
133 		status = acpi_ut_convert_octal_string(string, return_value);
137 		status = acpi_ut_convert_decimal_string(string, return_value);
142 		status = acpi_ut_convert_hex_string(string, return_value);
156  * PARAMETERS:  string                  - Null terminated input string,
164  *              an automatic (implicit) conversion from a string operand
180  *  The ASCII string is always interpreted as a hexadecimal constant.
192  *  4)  Conversion of a null (zero-length) string to an integer is
206 u64 acpi_ut_implicit_strtoul64(char *string)
210 	ACPI_FUNCTION_TRACE_STR(ut_implicit_strtoul64, string);
212 	if (!acpi_ut_remove_whitespace(&string)) {
221 	acpi_ut_remove_hex_prefix(&string);
223 	if (!acpi_ut_remove_leading_zeros(&string)) {
230 	 * On overflow, the input string is simply truncated.
232 	acpi_ut_convert_hex_string(string, &converted_integer);
240  * PARAMETERS:  string                  - Null terminated input string,
260  *  1)  The input string is either a decimal or hexadecimal numeric string.
274  *  4)  Conversion of a null (zero-length) string to an integer is
287 u64 acpi_ut_explicit_strtoul64(char *string)
292 	ACPI_FUNCTION_TRACE_STR(ut_explicit_strtoul64, string);
294 	if (!acpi_ut_remove_whitespace(&string)) {
302 	if (acpi_ut_detect_hex_prefix(&string)) {
306 	if (!acpi_ut_remove_leading_zeros(&string)) {
313 	 * On overflow, the input string is simply truncated.
318 		acpi_ut_convert_decimal_string(string, &converted_integer);
322 		acpi_ut_convert_hex_string(string, &converted_integer);