Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30256-57c6c2b57f) Lines: 1869 1991 93.9 % Date: 2025-05-09 09:19:30 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	105
divRq	301
mulqq	1127
addRq	1288
mulRq	2324
divTp	3674
addsub_polmod	7203
ser_normalize	7658
quad_polmod_conj	18382
quad_polmod_norm	18382
div_scal_ser	18550
div_rfrac_scal	32139
div_polmod_same	37065
div_scal_rfrac	37767
sqr_ser_part	112759
gconj	133221
mul_gen_rfrac	161432
fix_rfrac	207739
inv_polmod	209925
Q_to_Fp	226838
div_rfrac_pol	262344
mul_ser_scal	316218
div_intmod_same	341909
add_ser_scal	408094
sqr_polmod	484275
div_ser	771510
sub_intmod_same	1027929
div_rfrac	1187237
divpT	1204917
div_ser_scal	1338593
gdivgunextu	1583873
Qdivis	1591234
divRc	2358487
mul_intmod_same	2629098
mul_polmod	2674945
add_rfrac	3018271
mulcxmI	3079068
gsubsg	3109685
add_intmod_same	3344778
mul_polmod_scal	3384389
ser_add	3581430
addQp	4762978
mulTp	4984925
mulcxpowIs	5527278
fill_ser	5693909
init_ser	5706256
quad_polmod_mul	5860083
div_T_scal	6724453
_serprec	7162062
mul_self_scal	7465405
mul_rfrac	7910285
mul_polmod_same	8567980
add_rfrac_scal	8811954
div_scal_pol	9257030
div_scal_T	9264727
rfrac_denom_mul_scal	9959372
mul_rfrac_scal	10454828
mulcIR	11664939
gdivgs	12985321
divpp	13212925
addsub_polmod_scal	13488195
addsub_frac_i	14219912
setfrac	15034064
mulcxI	15648427
mulpp	17503128
addsub_pp	19972758
divcR	23089481
mkpadic_mod	24593588
conj_i	29186733
ginv	36303617
mulrfrac	37587487
addsub_frac	42577976
add_scal	44565378
gred_rfrac2	44825298
gdivgu	54607991
Leading_is_neg	57792533
gred_rfrac_simple	57796601
gmulug	124352445
gmul2n	137444342
Qdivii	141243928
Qdiviu	142319874
transtype	154401254
mul_scal	155853085
divrunextu	224447224
gmulsg	230545477
gaddsg	270598294
mulcc	273832249
addRc	303897375
mulRc	351318537
gdiv	434338623
gsqr	1178085897
gsub	2869339231
gadd	6073718645
gmul	8773090314

Generated by: LCOV version 1.16