NAME

SDL_strtod - Parse a double from a string.

HEADER FILE

Defined in SDL3/SDL_stdinc.h

SYNOPSIS

#include "SDL3/SDL.h"

double SDL_strtod(const char *str, char **endp);

DESCRIPTION

This function makes fewer guarantees than the C runtime strtod :

• Only decimal notation is guaranteed to be supported. The handling of
scientific and hexadecimal notation is unspecified.

• Whether or not INF and NAN can be parsed is unspecified.

• The precision of the result is unspecified.

FUNCTION PARAMETERS

str

the null-terminated string to read. Must not be NULL.

endp

if not NULL, the address of the first invalid character (i.e. the next character after the parsed number) will be written to this pointer.

RETURN VALUE

Returns the parsed double , or 0 if no number could be parsed.

THREAD SAFETY

It is safe to call this function from any thread.

AVAILABILITY

This function is available since SDL 3.2.0.

SEE ALSO

•(3), SDL_atoi(3), •(3), SDL_atof(3), •(3), SDL_strtol(3), •(3), SDL_strtoll(3), •(3), SDL_strtoul(3), •(3), SDL_strtoull(3)