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 30862-ea47bd413c) Lines: 1881 2002 94.0 % Date: 2026-05-06 09:26:47 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	126
divRq	301
mulqq	1127
addRq	1302
mulRq	2387
divTp	3674
addsub_polmod	7210
ser_normalize	7658
quad_polmod_conj	18669
quad_polmod_norm	18669
div_scal_ser	19292
div_rfrac_scal	32435
div_polmod_same	38150
sqr_ser_part	114271
mul_gen_rfrac	161376
inv_polmod	192397
fix_rfrac	207018
Q_to_Fp	226838
div_rfrac_pol	260657
mul_ser_scal	326494
div_intmod_same	341559
gconj	390611
add_ser_scal	425153
sqr_polmod	426119
div_ser	908987
sub_intmod_same	1017835
div_scal_rfrac	1052294
div_rfrac	1187510
divpT	1204910
gdivgunextu	1583803
div_ser_scal	1608941
Qdivis	1781425
mul_polmod	2674945
divRc	2926983
mulcxmI	2986307
mul_intmod_same	2987758
add_rfrac	3017298
gsubsg	3271120
mul_polmod_scal	3284727
add_intmod_same	3411658
ser_add	4257566
addQp	4763028
mulTp	4985936
mulcxpowIs	5565535
quad_polmod_mul	5861861
pol2ser	6631773
div_T_scal	7362675
mul_self_scal	7667529
mul_rfrac	7910292
_serprec	8514334
mul_polmod_same	8647444
add_rfrac_scal	8823993
rfrac_denom_mul_scal	9852071
mul_rfrac_scal	10435791
mulcIR	11907747
divpp	13212705
gdivgs	13463314
addsub_polmod_scal	13598740
addsub_frac_i	14260303
div_scal_pol	14531927
setfrac	15158956
div_scal_T	15557439
mulcxI	15656303
mulpp	17505466
addsub_pp	19974146
divcR	24474363
mkpadic_mod	24594888
add_scal	29447026
conj_i	32426521
mulrfrac	38170505
ginv	38547705
gred_rfrac2	39476288
addsub_frac	40957246
Leading_is_neg	57630004
gred_rfrac_simple	57634205
gdivgu	61797307
utoi_sign	65169797
Qdivii	143139229
gmul2n	150486809
Qdiviu	151468957
transtype	154225041
mul_scal	198412319
divrunextu	213650785
gmulsg	244401072
gaddsg	270841992
gmulug	283956442
mulcc	284863973
addRc	311308927
mulRc	355766418
gdiv	459306178
gsqr	1345794481
gsub	2910876490
gadd	6270541876
gmul	8979952523

Generated by: LCOV version 1.16