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Minor tweaks

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Ray 2022-12-17 12:15:19 +01:00
parent d1a104bba4
commit 72b9f3c5de
1 changed files with 4 additions and 4 deletions
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8
src/rcore.c
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@ -151,7 +151,7 @@
#include "external/sdefl.h" // Deflate (RFC 1951) compressor #include "external/sdefl.h" // Deflate (RFC 1951) compressor
#endif #endif
#if (defined(__linux__) || defined(PLATFORM_WEB)) && _POSIX_C_SOURCE < 199309L #if (defined(__linux__) || defined(PLATFORM_WEB)) && (_POSIX_C_SOURCE < 199309L)
#undef _POSIX_C_SOURCE #undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 199309L // Required for: CLOCK_MONOTONIC if compiled with c99 without gnu ext. #define _POSIX_C_SOURCE 199309L // Required for: CLOCK_MONOTONIC if compiled with c99 without gnu ext.
#endif #endif
@ -2813,6 +2813,9 @@ void TakeScreenshot(const char *fileName)
} }
// Get a random value between min and max (both included) // Get a random value between min and max (both included)
// WARNING: Ranges higher than RAND_MAX will return invalid results
// More specifically, if (max - min) > INT_MAX there will be an overflow,
// and otherwise if (max - min) > RAND_MAX the random value will incorrectly never exceed a certain threshold
int GetRandomValue(int min, int max) int GetRandomValue(int min, int max)
{ {
if (min > max) if (min > max)
@ -2821,9 +2824,6 @@ int GetRandomValue(int min, int max)
max = min; max = min;
min = tmp; min = tmp;
} }
// WARNING: Ranges higher than RAND_MAX will return invalid results. More specifically, if (max - min) > INT_MAX there will
// be an overflow, and otherwise if (max - min) > RAND_MAX the random value will incorrectly never exceed a certain threshold.
if ((unsigned int)(max - min) > (unsigned int)RAND_MAX) if ((unsigned int)(max - min) > (unsigned int)RAND_MAX)
{ {
TRACELOG(LOG_WARNING, "Invalid GetRandomValue arguments. Range should not be higher than %i.", RAND_MAX); TRACELOG(LOG_WARNING, "Invalid GetRandomValue arguments. Range should not be higher than %i.", RAND_MAX);