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gnrc/icmpv6: redefinition of MIN macro

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Since `min(a,b)` is a very frequently used function, several libraries such as ESP8266 SDK define a `MIN` macro in their header files. Therefore the `MIN` macro should be undefined before its definition to avoid compilation errors if it is defined anywhere else before.
This commit is contained in:
Gunar Schorcht 2020-06-25 17:29:30 +02:00
parent a665fcc542
commit a440ae7bd9
1 changed files with 1 additions and 0 deletions
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sys/net/gnrc/network_layer/icmpv6/error/gnrc_icmpv6_error.c
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@ -27,6 +27,7 @@
#define ICMPV6_ERROR_SET_VALUE(data, value) \
((icmpv6_error_pkt_too_big_t *)(data))->mtu = byteorder_htonl(value)
#undef MIN
#define MIN(a, b) ((a) < (b)) ? (a) : (b)
/**